单词 | geologic |
例句 | Among mountaineers and other connoisseurs of geologic form, Everest is not regarded as a particularly comely peak. Into Thin Air 1996-08-01T00:00:00Z This suffering allowed them no rest; it was simple but relentless as a geologic cycle. Typical American 1991-01-01T00:00:00Z Summers he worked for scientists conducting geologic research in Antarctica or escorted climbers into New Zealand’s Southern Alps. Into Thin Air 1996-08-01T00:00:00Z He explains the branches of marine evolution and the sequences of the geologic periods; on her best days, she glimpses the limitless span of millennia behind her: millions of years, tens of millions. All the Light We Cannot See 2014-05-06T00:00:00Z Doughton compares geologic evidence with Native American legend, particularly stories from the Makah and other tribes handed down through the generations about the Pacific Ocean receding for four days before a tsunami roared ashore. ‘Full Rip 9.0’: major Pacific Northwest quake, major shocker 2013-06-13T22:51:16Z Weighing in at almost 7 pounds, the nose-shaped Armstrong nugget is on display, along with a random collection of other geologic finds, in an unassuming case in the lobby. Try panning for gold in Oregon’s gold-rush country 2016-07-07T04:00:00Z This sweeping novel, one of Michener’s first books, starts at the beginning of geologic time and moves through Hawaiian history. 7 top reads about Hawaii 2013-03-08T20:57:43Z Antarctica reminds one of geologic time, an insight into the role of humans and our history. A trip to Antarctica, to escape D.C. winter (oh, and for other reasons) 2015-06-18T04:00:00Z In the extraordinary conclusion, a mother and daughter do geologic battle for the fate of the earth. 100 Notable Books of 2017 2017-11-22T05:00:00Z It’s remarkable how much territory this book covers: geologic time, time zones, our perception of time, time’s effect on the body, the bake time for a loaf of bread. Mac Barnett Reviews Picture Books About Time and Space 2021-12-17T05:00:00Z But even with the ocean overlook, it’s too rustic, cozy and deceptively modest for the geologic or ego-logical footprint that “compound” connotes. Barbra Streisand Is Ready to Tell All. Pull Up a Seat. 2023-11-07T05:00:00Z His subjects are domestic, yet there’s something geologic about Christian Brahe’s busy pictures. In the galleries: ‘Strange Landscapes’ explores gardens of unearthly delights 2016-09-15T04:00:00Z Riders travel along a new East Rim Trail built by the National Park Service, and guides stop six times along the trail to provide information about the geologic formations, fire ecology, and human history. In Transit Blog: At Grand Canyon, a New Mule Trip on the East Rim Trail 2013-08-27T20:35:17Z Paleoceanography, Rohling’s area of expertise, is the study of ancient oceans and ancient climates as they changed and developed together over geologic time. What’s Bad News for Coastlines Can Be Good News for Surfers 2017-12-29T05:00:00Z Even cities reflect the geologic forces that led to their creation. Four destinations that feel like geologic theme parks 2021-10-14T04:00:00Z Driving the van between geologic wonders meant having our home, including our kitchen, with us wherever we went. It’s the Cool Season in Death Valley 2023-02-27T05:00:00Z Unaweep is the Ute Indian word meaning “out of two mouths,” which accurately describes a geologic oddity: the ancient Gunnison River cut a canyon up to 2,500 feet deep before it changed course. A Bicycle Tour Through Remote Southwest Canyon Country 2010-07-31T04:30:00Z His pieces draw their cues from geologic forces, often tied to them in acoustic installations: the ebb and flow of tides, the shifting of tectonic plates. CD reviews: Noseda makes case for neglected Italian master 2016-02-25T05:00:00Z Volunteers and Forest Service employees found the 1-by-1-foot heart matching the description around 23 February on a geologic formation known as Bell Rock. Vanessa Hudgens pays $1,000 for carving heart into red rock of Sedona 2016-05-14T04:00:00Z It seems to encompass geologic and human time, eras and instants, the rings of the tree and the horse circling the track. Art Review: Tracing Muybridge, Pioneer of Photography, at the Corcoran 2010-04-26T22:54:00Z Soon heretofore unimaginable spans of geologic time became apparent to Enlightenment thinkers like James Hutton. 'The Rocks Don't Lie': looking at the evidence for a Noah-style flood 2012-08-15T19:03:03Z It boiled down to this: the distributions of groups, from orchids to earthworms to armadillos, all reflected the dynamic climatic and geologic history of the planet itself. Evolution, but different: Adventures of a Darwin-doubting botanist 2014-01-12T15:00:00Z As we hurtle forward through time, we move from the geologic to the historical to the local. Mac Barnett Reviews Picture Books About Time and Space 2021-12-17T05:00:00Z Still, the Grand Canyon retains intriguing mysteries — always inviting new, nuanced geologic interpretations. Four destinations that feel like geologic theme parks 2021-10-14T04:00:00Z When I planned our family’s two-week road trip through the geologic marvels of Utah, Arizona and Nevada, Antelope Canyon was at the top of my list of must-sees. She finally got to the Southwest’s most-photographed slot canyon. And it left her speechless. 2021-10-14T04:00:00Z After the breakup, Richard is a lost soul and migrates to Mexico for eight years to provide geologic services to expatriate oil entrepreneurs — a whole new host of unsavory characters — before returning to Texas. ‘All the Land to Hold Us’: A west Texas tale of hardship 2013-08-15T19:18:08Z Against this symphony of geologic time, the span of 43 years is a mere grace note. When the Light, Shadow and Stars Aligned: Standing Where Ansel Adams Stood 2023-03-13T04:00:00Z But the current rate of species die-off, caused by man’s exploration and exploitation of the globe, is occurring at an unprecedented rate in geologic time. A journalist investigates the planet’s ‘Sixth Extinction’ 2014-02-14T01:35:58Z Two geologic faults sliced through the site, potentially opening a pathway through which contaminants in one zone could transfer more easily to another, or move vertically back toward the surface. EPA reverses water pollution decision after lobbyist steps in 2013-03-13T22:51:00Z Daily ranger tours take visitors through the various bathing and medical facilities of the luxurious Fordyce Bathhouse, as well as to the park’s visible hot springs, where they explain geologic processes behind the mineral water. Soaking up history in Arkansas’ Hot Springs National Park 2020-02-06T05:00:00Z Chinatown’s geologic layering of successive generations of immigrants, cuisines and sensibilities is one source of its enduring allure to hungry, curious visitors. Chinatown Is Coming Back, One Noodle at a Time 2020-08-03T04:00:00Z Yet if the machinations of the plot are a tad rickety, its geologic premise is inarguably stable. ‘The Burning Sea’ Review: Smoke on the Water 2022-02-24T05:00:00Z Layered bands of colorful rock reveal millions of years of geologic history. Four destinations that feel like geologic theme parks 2021-10-14T04:00:00Z Even without consulting the dinosaur expert who kindly indulged our call, people online have landed on the geologic term that emotionally aligns with its colloquial use. Down and out and extremely online? No problem: Just enter a new ‘era.’ 2022-08-22T04:00:00Z It is a geographic and geologic oddity, its forbidding landscape bearing no resemblance to its lush and mountainous sisters. A Hawaiian Island Where Everybody Knows Your Name 2015-12-30T05:00:00Z Here Piller describes Black resistance as a geologic fact, built from impoverished materials. 5 Artists to Watch at the California Biennial 2022-10-20T04:00:00Z I was on to a geologic concept and decided to test my theory. Birth Of A Wildcatter - How Harold Hamm Got His Start 2012-12-06T15:00:00Z His newest comic collection, to be published next spring, includes an introduction that he says amounts to “the history of Sulphur Springs in geologic terms.” Texas Monthly: Mel and Gary Panter Have a Father-and-Son Art Exhibition in Sulphur Springs 2012-01-08T05:20:28Z Both “Glow” and “Strata” have a geologic feel, although in the latter the magma has cooled and weathered. Galleries: ‘Kaleidoscope,’ ‘Aviary Wonders,’ ‘Interconnected,’ ‘Are You Gonna Eat That?’ “Some geologic aberration that makes you feel uptight. You sort of feel anxious even when there’s absolutely nothing to do.” Gus Van Sant’s Next Picture Will Be a Watercolor 2019-09-08T04:00:00Z Then the fact that this unusual geologic formation was once considered to be the eighth wonder of the world but was obliterated in a volcanic explosion that removed every trace of it in 1886. Amid the pandemic, a writer finds inspiration in century-old travel stories 2020-06-25T04:00:00Z Obama, ever the pragmatist, is an optimist because he takes the long view, practically seeing things in geologic time. “WTF” with Barack Obama 2015-06-22T04:00:00Z Shadows dance across the walls, ceiling, floors and geologic clutter, which run the gamut of brown — russet, sand, walnut, tan, chocolate, khaki. Under the Shenandoah Mountains, a West Virginia caving adventure 2019-04-04T04:00:00Z Today, he counts 128, based on geologic studies of vineyard soils and his own observations of how the grapes ripen from sector to sector. How influential can one vintner be? Two famous wineries get to find out. 2016-11-23T05:00:00Z Henderson offers a deeply researched look at the science of tsunamis, which becomes its own sort of geologic detective story, as scientists try to pin down the date of the last great Pacific Northwest earthquake. David L. Ulin's best books of 2014 2014-12-19T05:00:00Z Western Union is like a hulking, geologic mass — an entire urban block extruded in brick. Brooklyn Bridge, Star of the City: Here’s a Tour 2020-05-06T04:00:00Z Rising above them all is Lone Peak, a geologic marvel known as a Christmas tree laccolith for its pyramidal shape. At Montana’s Big Sky Resort, limitless vistas and rural charm 2015-02-10T05:00:00Z The result is a mind-bending conflation of cinematic and geologic time. Art Review: The Magic of Movies, Born From a Single Snapshot 2011-08-18T22:24:34Z Far from the clash of tectonic plates is the geologic wonder that is the Grand Canyon. Four destinations that feel like geologic theme parks 2021-10-14T04:00:00Z Though its landscape exposes ancient elements of change through eons of geologic uplift and erosion, it’s still shaped by day-to-day conditions. It’s the Cool Season in Death Valley 2023-02-27T05:00:00Z Today, according to Montgomery, nearly half of Americans believe in young Earth creationism, the belief that the Earth is about 6,000 years old and its geologic features were deposited and shaped by Noah's flood. 'The Rocks Don't Lie': looking at the evidence for a Noah-style flood 2012-08-15T19:03:03Z From this hill stems the Camino de los Colorados, a gravel path along two miles of geologic wonders: red flat-topped mountains, green conical mountains, uneven purple ridges. Next Stop: Jujuy Region of Argentina Maintains Its Mystical Allure 2010-08-07T04:45:00Z With its geologic history, seismic monitors and robotic cameras are mounted throughout the archipelago. Images of disaster in Japan lend visual power 2011-03-20T23:16:04Z More-subtle stories of Earth’s geologic past are in evidence anywhere you travel. Four destinations that feel like geologic theme parks 2021-10-14T04:00:00Z Gillmore loves Paraty, a beach destination between Rio and São Paulo with a historic town center, and Bonito, in the southwest, known for its crystal-clear rivers, lush forests, and caves with geologic formations. Tips for taking a luxury vacation to Brazil for less 2017-12-08T05:00:00Z For the past 12,000 years, since the last great ice age, we have lived in the relatively calm climate of the geologic period we call the Holocene. Earth has entered a new era, new Smithsonian book says. That is not a good thing. 2017-10-02T04:00:00Z The thought of reaching that geologic wonderland — with its lava flows, creeks, waterfalls and lakes — on skis was enticing. Oregon’s Newberry volcanic monument is spectacular in the snow 2016-11-10T05:00:00Z Average temperatures in the Yellowstone region in recent decades were probably the highest of the past 800,000 years, according to geologic studies. Climate change threatens Yellowstone’s natural splendor 2021-06-25T04:00:00Z Rolling “combes” are characteristic of the Jura, a sequence of accordionlike geologic folds with the most abrupt uplifts on the Swiss border, offering spectacular views of Lake Geneva and the Alps across the Rhône Valley. The Jura Mountains, a Cross-Country Wonderland 2014-12-12T05:00:00Z By the end of 10 days, we will have driven nearly 2,000 miles and explored the landmarks of geologic time the way tourists visit castles in Europe. Before the summer rush, a spring road trip through Alaska is just as beautiful 2017-02-23T05:00:00Z They argued that we are now in a new geologic phase, the Anthropocene epoch — a time when humans now change the Earth more than all the planet’s natural processes combined. ‘Anthropocene: The Human Epoch’ Review: Global Warnings 2019-09-24T04:00:00Z The geologic origins of the Hawaiian Islands remained a mystery until 1963, when the concept of a “hot spot” beneath the Earth’s crust was postulated. Four destinations that feel like geologic theme parks 2021-10-14T04:00:00Z Ten led the way up a slippery path, pointing out geologic formations sprouting from the floor and ceiling, and forming flowstone columns where stalactites and stalagmites grew together. Journeys: Ban Tham Lod in Northern Thailand 2011-10-07T18:55:00Z I got a view of the geologic handiwork underground on the Wild Cave Tour. Mammoth Cave National Park, Kentucky’s underground rock star 2019-09-26T04:00:00Z This one is built around a typically geologic misadventure involving the hapless Scrat, the prehistoric squirrel-thing, and his elusive acorn from the "Ice Age" features. 'Rio': A rare bird that justifies the 3-D process 2011-04-14T22:08:36Z Then a geologic study revealed that the proposed dam was on top of several active fault lines and the project was scrapped. Top 10 US mid-Atlantic national and state parks 2016-05-03T04:00:00Z The piece summons Smithsonesque thoughts about geologic time, but it also poses questions that earthworks generally don’t: Do social atrocities leave scars on the landscape? Haunting ‘Ruins and Rituals’ Begins ‘A Year of Yes’ at Brooklyn Museum 2016-11-10T05:00:00Z Greer’s window installation, “Geologica,” sounds particularly eye-catching with its depiction of human forms as they “transition into the geologic and the geographic.” A&E highlights: Arts in Bellevue, Randy Newman at the zoo 2013-07-19T16:29:11Z While geologic shifts have made geography fungible, they aren’t responsible for the shoddy rendering of the New York skyline. ‘Moonfall’ Review: Out of Orbit 2022-02-03T05:00:00Z To reach Maragua, a small farming community, we climbed to the top of a ridge, then dropped down into a bowl-like crater formed by an unusual combination of geologic uplift and erosion. In the Mountains of Bolivia, Encounters With Magic 2016-03-23T04:00:00Z “It’s possible that other explosive eruptions of Pinatubo vanished from geologic record,” she said. Mount Pinatubo, 20 Years After the Blast 2012-11-28T00:08:03Z The event is likely explained by the relationship between the valley’s electromagnetic field and its overall geologic makeup. 16 of the Coolest Light Phenomena Around the World 2015-03-12T04:00:00Z A gnarly little 1918 image of geologic upheaval called “Sun and Rocks” was transformed in 1950, after the addition of a cruciform star, into a scene of mystical visitation. Art Review: ?Paintings of Charles Burchfield? at the Whitney 2010-06-24T21:53:00Z "Think of the likelihood of a sparrow being preserved in the geologic record as opposed to an elephant." Birds set foot near South Pole in Early Cretaceous, Australian tracks show 2023-11-16T05:00:00Z That would be a surprise to scientists, and a relief to those in Iceland—but tensions will remain, with many wonderings why all that geologic turmoil resulted in a misfire. Iceland bracing for unprecedented volcanic eruption 2023-11-13T05:00:00Z When an icy moon moves around its parent planet, the gravity of the planet can cause tidal flexing of the surface of the moon, which can drive geologic activity such as strike-slip faulting. Studies of geologic faulting on icy moons aid exploration of extraterrestrial watery worlds 2023-11-06T05:00:00Z Reconstructions of past climate change using geologic data have helped to show the far-reaching influence of human activity on temperatures since the Industrial Age. Study links changes in global water cycle to higher temperatures 2023-11-02T04:00:00Z "This analysis is not snapshot, but a record of change. What we see on Mars today is the remnants of an active geologic history, not some landscape frozen in time." Curiosity rover finds new evidence of ancient Mars rivers, a key signal for life 2023-10-24T04:00:00Z About 40 to 250 kilometers beneath the surface, geologic formations called mantle keels act as the foundation of the continental crust. Superdeep diamonds provide a window on supercontinent growth 2023-10-23T04:00:00Z The moon is a less deceptive partner—the lack of tectonic activity means that geologic records on the surface last for eons. The moon is even older than we thought 2023-10-23T04:00:00Z Other shear features found in younger geologic units in the same region do not align in slip direction with typical first-order shear indicators. Studies of geologic faulting on icy moons aid exploration of extraterrestrial watery worlds 2023-11-06T05:00:00Z Such deep geologic processes, especially in the past, have been very difficult to study directly because the oceanic crust is young, and the continental crust only provides a limited view of Earth's deep workings. Ancient diamonds shine light on the evolution of Earth 2023-10-18T04:00:00Z As the Sun ages it will brighten, driving geologic processes that will gradually lower the amount of CO2 in the air. New calculations say there are more living cells than grains of sand or stars in the sky 2023-10-17T04:00:00Z Evolution can seem slow to us, but across geologic timescales, it’s lightning fast. Will the Next Supercontinent Really Drive Mammals to Extinction? 2023-10-17T04:00:00Z "We are using real world data from the ancient geologic past to improve our ability to model rainfall changes as the planet warms," she says. Paleoclimatologists use ancient sediment to explore future climate in Africa 2023-10-10T04:00:00Z "We were confident in our original ages, as well as the strong geologic, hydrologic, and stratigraphic evidence, but we knew that independent chronologic control was critical." Oldest fossil human footprints in North America confirmed 2023-10-05T04:00:00Z While doing this, the team recognised a previously unknown geologic process. Ancient diamonds shine light on the evolution of Earth 2023-10-18T04:00:00Z However, until now there was no direct geologic evidence to suggest such a large water reservoir existed at this particular New Zealand fault. Discovery of massive undersea water reservoir could explain New Zealand's mysterious slow earthquakes 2023-10-04T04:00:00Z So we started with something basic: following the Trail of Time along the South Rim to learn a bit about the canyon’s geologic timeline. 2 weeks, 11 national parks, 3,350 miles: Savor the Southwest on the Grand Circle road trip 2023-09-28T04:00:00Z These initial results give planetary scientists like me who study the Moon new insights into how it works as a geologic system. Chandrayaan-3’s measurements of sulfur open the doors for lunar science and exploration 2023-09-24T04:00:00Z "We're literally looking at geologic materials that formed before Earth even existed," Dante Lauretta, principal investigator for the mission at the University of Arizona, Tucson, told reporters last month. NASA's first asteroid sample on track for Sunday parachute landing in Utah 2023-09-23T04:00:00Z “It’s really a compelling argument to say the unique geologic thing that we observe here is probably related to the unique compositional thing that we see here,” she says. Jupiter’s Moon Europa May Hide Tantalizing Carbon in Mysterious Ocean 2023-09-21T04:00:00Z The layers of 3-D-printed concrete give the walls a geologic look, and the curving shape and high ceilings prevent this intimately scaled studio from feeling like a shoebox. L.A.'s first legal 3-D-printed house is here. It was built by students in just 15 months 2023-09-19T04:00:00Z The panel denied the permit due to issues the regulators said Summit didn’t sufficiently address, such as cultural resource impacts, potentially unstable geologic areas and landowner concerns, among several other reasons. North Dakota panel will reconsider denying permit for Summit CO2 pipeline 2023-09-15T04:00:00Z The primary areas of concern are air pollution, water usage, geologic hazards, and the protection of Indigenous rights. California’s Salton Sea eyed for lithium extraction with new tech 2023-09-07T04:00:00Z Given his anguish about America’s deploying his nuclear weapon in 1945, I suspect “Oppie” would also agonize about his ownership of our current geologic time period. Opinion: The atomic bomb laid down the marker for humanity's era of catastrophic change 2023-09-03T04:00:00Z In geologic terms, those 14,000-year-old glaciers up the road have vanished in an instant – a mere two or three decades – and we all know why, even if we will not admit it. The glaciers' last message | Horsey cartoon 2023-09-01T04:00:00Z North Dakota regulators cited several issues that they said Summit didn’t appropriately address, such as cultural resource impacts, geologic instability and landowner concerns. Minnesota regulators vote to proceed with environmental review of disputed carbon capture pipeline 2023-09-01T04:00:00Z In the geologic time scale, humans barely exist for the span of a breath and, for most of us, that's just long enough to be born into a cruel world and suffer its grief. Bloodthirsty Silicon Valley vampires won't stop: It's time to stake our claim 2023-08-27T04:00:00Z It’s geologic time playing out in real time — now forced in part by us and our global warming activities, most scientists say. End of an epoch? King County may be down to its last glacier 2023-08-26T04:00:00Z Its far-reaching impacts have even led scientists to consider using the signature of nuclear weapons to mark a new geologic age, the Anthropocene. Turtle Shells Record Nuclear History 2023-08-22T04:00:00Z Scientists by now have a fairly firm grasp of the geologic and climate pressures looming over the shore. In the face of sea level rise, can we reimagine California's vanishing coastline? 2023-08-22T04:00:00Z But in the geologic blink of an eye, everything changed. Fossils Buried in LA Tar Pit Show Why Saber-Toothed Cats Blinked Out of Existence 2023-08-17T04:00:00Z Unlike carbonaceous chondrites, these meteorites come from asteroids or other rocky bodies that have been partially melted by radiation and geologic processes. Did Earth’s Water Come from Meteorites? 2023-07-31T04:00:00Z Though challenging to study, kimberlites promise to yield a sparkling window into the geologic churn deep below the surface — and perhaps above, too, Dr. Gernon said. When Ancient Eruptions Pumped Diamonds to Earth’s Surface 2023-07-26T04:00:00Z A small lake in a conservation area on the Niagara Peninsula in Ontario has been selected to represent the Anthropocene, a proposed, and challenged, new chapter in geologic time. Frank Gehry Returns to the Streets of His Canadian Childhood 2023-07-15T04:00:00Z Inching his way toward the towering bluffs, Griggs explained how this area is a geologic microcosm of everything that could be possible on the coast. In the face of sea level rise, can we reimagine California's vanishing coastline? 2023-08-22T04:00:00Z Humanity has etched its way into Earth’s geology, atmosphere and biology with such strength and permanence, a special team of scientists figures we have shifted into a new geologic epoch, one of our own creation. Scientists now say a new epoch – the Anthropocene, marked by human impact on Earth – began in 1950s 2023-07-11T04:00:00Z Human activity has had such a significant impact on the planet’s ecosystems and climate that scientists are now discussing whether to declare that Earth has entered a new interval of geologic time: the Anthropocene. Climate Disasters Daily? Welcome to the ‘New Normal.’ 2023-07-10T04:00:00Z We watched a 26-minute film describing the geologic history of the Gorge and why the dam was built to provide power to rapidly growing Portland. Beyond camping and festivals, the Gorge is the PNW’s prime playground 2023-07-07T04:00:00Z For months now they have been awaiting any signs of fissures in the Russian leader’s hold on power; when they finally got one, it was more like a geologic fault line. Biden and Putin Have Dueling Messages on the Mutiny in Russia 2023-06-26T04:00:00Z The research process was as labor intensive, says Hsiung, who spent years investigating the history of the Bunker Hill area, which she says “used to be a steep geologic dome.” For L.A.'s newest underground art experience, head down to the Metro Regional Connector 2023-06-17T04:00:00Z A geologic task force is recommending to mark this new epoch’s start in the small but deep, pristine Crawford Lake outside Toronto, Canada with a ‘golden spike’. Scientists now say a new epoch – the Anthropocene, marked by human impact on Earth – began in 1950s 2023-07-11T04:00:00Z On land, subsurface water is stored in geologic layers of water-bearing rock called aquifers. Found: Giant Freshwater Deposits Hiding under the Sea 2023-06-17T04:00:00Z It towers over an enormous, mostly barren landscape strewn with the ancient scars of violent geologic upheaval. Mt. Whitney: A perilous trek to the top of California's record snowpack 2023-06-09T04:00:00Z It is also a boon for basic science—filling in gaps in geologic history, identifying unknown earthquake faults, and revealing geothermal systems. Major U.S. geological survey aims to uncover minerals critical for batteries and microchips 2023-06-01T04:00:00Z Some of this nitrogen falls to the ocean floor as sediment, which can then be moved to land in geologic time by uplift of Earth’s surface, and thereby incorporated into terrestrial rock. Concepts of Biology 2013-04-25T00:00:00Z Those spikes commemorate new geologic time periods across the Earth. Scientists now say a new epoch – the Anthropocene, marked by human impact on Earth – began in 1950s 2023-07-11T04:00:00Z Perhaps not surprisingly, the geologic layers that form aquifers under land do not stop at the shoreline; they often extend outward as part of the shelf. Found: Giant Freshwater Deposits Hiding under the Sea 2023-06-17T04:00:00Z Recently, it was announced that Zhurong had detected evidence that liquid water was flowing on Mars within the last 1.4 million years, which is relatively recent in geologic terms. These are the oldest space probes that are still operational 2023-05-07T04:00:00Z Earth MRI’s airborne surveys, with flights just 100 meters above the surface, will add much more detail and inform a new generation of sharper geologic maps. Major U.S. geological survey aims to uncover minerals critical for batteries and microchips 2023-06-01T04:00:00Z Based on geologic records, scientists know four volcanic eruptions occurred here around 300 C.E., coinciding with the condors’ abandonment of the nesting site. 2200-year-old pile of excrement provides window into condors’ past 2023-05-02T04:00:00Z That meteorite started a whole new era, scientists propose humans started a new epoch which is a much smaller geologic time period. Scientists now say a new epoch – the Anthropocene, marked by human impact on Earth – began in 1950s 2023-07-11T04:00:00Z As I mentioned earlier, other experiments have been conducted since our cruise—some in places that have very different geologic settings. Found: Giant Freshwater Deposits Hiding under the Sea 2023-06-17T04:00:00Z In addition to the geologic divide, the report underlines how the racial disparity in facing high pollution is only increasing, Pruitt said. Report finds that heat, drought and fires worsen air in the West 2023-04-19T04:00:00Z Other aircraft carry laser altimeters that can map surface relief to reveal geologic history. Major U.S. geological survey aims to uncover minerals critical for batteries and microchips 2023-06-01T04:00:00Z Over geologic history, floating rafts of natural debris probably brought many living things to islands — lizards and frogs to Haiti, land snails to Hawaii and even tortoises to the Galapagos. The Pacific garbage patch hosts a new threat | Faye Flam 2023-04-28T04:00:00Z What lies underneath Mars' surface is equally fascinating — as Mars' evolution by a planet is, like Earth, driven by the geologic behavior of what's below. For the first time, scientists detect seismic waves rattling through Mars' core 2023-04-25T04:00:00Z Pumping water from a submarine aquifer that is connected through a geologic formation to an onshore aquifer could also be risky. Found: Giant Freshwater Deposits Hiding under the Sea 2023-06-17T04:00:00Z They were excavated from a fossil-rich geologic formation of ancient swamps and lakes from an era called the Eocene, dating to around 50 million years ago. Oldest known bat skeletons shed light on early mammalian flight 2023-04-11T04:00:00Z The rifts provided conduits for magma to well up much later in geologic time, when Africa collided with North America to form the Appalachian Mountains. Major U.S. geological survey aims to uncover minerals critical for batteries and microchips 2023-06-01T04:00:00Z That jagged structure, coupled with geologic models, suggests that the layer is made up of subducted seafloor, the paper’s authors conclude. Earth’s core seems to be surrounded by enigmatic layer, geologists say 2023-04-10T04:00:00Z It will also image the full surfaces of the moons to search for ongoing geologic activity—something that Voyager 2 failed to do. NASA’s Uranus Mission Is Running Out of Time 2023-03-30T04:00:00Z West Coast has many geologic faults that could channel groundwater offshore but that could also allow saltwater intrusion onshore if there were excessive pumping. Found: Giant Freshwater Deposits Hiding under the Sea 2023-06-17T04:00:00Z The assumption was that when the interior temperature gradually decreased, so, too, did the planet's ability to generate large-scale geologic activity such as huge volcanoes and “marsquakes.” Volcanic Activity on Mars Upends Red Planet Assumptions 2023-03-22T04:00:00Z One of Venus' lingering geologic mysteries involves the innumerable volcanoes which pepper the planet's surface. Only two solar system bodies have active volcanoes. Make that three. 2023-03-22T04:00:00Z The findings, published in the journal Science Advances, provide a glimpse into the geologic cycling fueled by tectonic plates. Earth’s core seems to be surrounded by enigmatic layer, geologists say 2023-04-10T04:00:00Z Recent years had brought hints that Venus has some geologic life. Active volcano on Venus shows it’s a living planet | Science | AAAS 2023-03-14T04:00:00Z Forty years after the passage of the Nuclear Waste Policy Act, there is, “no clear path forward for the siting, licensing, and construction of a geologic repository” for nuclear waste, according to a recent U.S. Nuclear Waste Is Piling Up. Does the U.S. Have a Plan? 2023-03-06T05:00:00Z Scientists have found that a large region on Mars has been prone to quakes and even mild volcanic activity in recent geologic times, indicating something is brewing underneath the surface. Volcanic Activity on Mars Upends Red Planet Assumptions 2023-03-22T04:00:00Z But underground geologic storage areas, such as depleted oil reservoirs, are likely to get most of the ocean-derived CO2, Hatton said. Scientists Are Trying to Pull Carbon Out of the Ocean to Combat Climate Change 2023-02-27T05:00:00Z Geophysicists surmise the inner core could have formed less than a billion years ago, which is relatively young on a geologic time scale. Scientists have discovered a new core at the center of the Earth 2023-02-24T05:00:00Z “I teach sustainable progression on the mountain bike, and it’s all about the balance and the flow, surfing the geologic wave, if you will.” How to visit Sedona without being a jerk 2023-02-22T05:00:00Z Without a geologic repository, there is no way forward for the final disposal of this highly radioactive material. Nuclear Waste Is Piling Up. Does the U.S. Have a Plan? 2023-03-06T05:00:00Z “The question remains whether they are meteoritic, geologic, or biologic,” said Amy Williams, a planetary scientist at the University of Florida and a member of the Curiosity and Perseverance scientific teams. Strange DNA found in the desert offers lessons in the hunt for Mars life 2023-02-21T05:00:00Z "The five largest moons, predicted to be cold dead worlds, all showed evidence of recent resurfacing, suggesting that geologic activity might be ongoing," Mandt explains. A planned Uranus probe wouldn't get there till the 2040s. Here's why 2023-02-16T05:00:00Z Dr. Steffen was a leading advocate for the official recognition of an Anthropocene epoch — a unit of geologic time marking the start of human activity significantly affecting the planet’s climate and ecosystems. Will Steffen, scientist who fought climate denialism, dies at 75 2023-01-31T05:00:00Z Even as the ridges helpfully push up the ice, however, they also grind the layers into an incoherent mess, like a geologic blender. Inside the Race to Find Earth’s Oldest Ice 2023-02-09T05:00:00Z Sweden’s SKB nonprofit announced last year that it will build a deep geologic repository at Östhammar for the permanent disposal of spent fuel from its commercial nuclear reactors. Nuclear Waste Is Piling Up. Does the U.S. Have a Plan? 2023-03-06T05:00:00Z Turkey, crossed by multiple geologic faults, has long been prone to earthquakes, and the government has put in place regulations aimed at making buildings safe. Powerful Quake Strikes Turkey and Syria, Killing More Than 3,800 2023-02-06T05:00:00Z The big bodies of whales such as the blue whale are relatively recent — only five million to 10 million years ago, practically yesterday in geologic time. Unlocking the Genes That Made Whales Into Giants 2023-01-19T05:00:00Z Dunleavy’s office said the new legislation would set out rules for potential storage of carbon dioxide in underground geologic formations and for a carbon offsets program. Alaska governor pitches plan to capitalize on carbon markets 2023-01-12T05:00:00Z One way to do this is by making use of unique geologic features called paleo valleys. Opinion | California Could Capture Its Destructive Floodwaters to Fight Drought 2023-01-07T05:00:00Z In Finland, construction of a geologic repository began in May 2021, with plans to accept spent nuclear fuel by the mid-2020s. Nuclear Waste Is Piling Up. Does the U.S. Have a Plan? 2023-03-06T05:00:00Z However, as the thinking goes, when the interior temperature gradually dropped, so too did the planet’s ability to generate large-scale geologic activity—such as huge volcanoes and marsquakes. Volcanic Activity on Mars Upends Red Planet Assumptions 2023-01-05T05:00:00Z Despite being well-known for their enormous size, big bodies actually came into fashion relatively recently among whales — only five million to 10 million years ago, practically yesterday in geologic time. Unlocking the Genes That Made Whales Into Giants 2023-01-19T05:00:00Z Many geologists acknowledge the unprecedented changes wrought by human activity but question the need to change a system that describes millions of years of geologic time to mark shorter lived events driven by humanity. Eleven science stories likely to make big news in 2023 2023-01-04T05:00:00Z The amended timeline of Earth’s history would officially recognize that humankind’s effects on the planet had been so consequential as to bring the previous geologic period to a close. E.P.A. Tightens Rules on Pollution From Vans, Buses and Trucks 2022-12-20T05:00:00Z The industry is best positioned to manage the back end of the nuclear fuel cycle, from discharge of spent fuel from the reactor, through storage, shipment and final geologic disposal. Nuclear Waste Is Piling Up. Does the U.S. Have a Plan? 2023-03-06T05:00:00Z Within the vast expanse of geologic time, he notes, the Anthropocene would be a blip of a blip of a blip. For Planet Earth, This Might Be the Start of a New Age 2022-12-17T05:00:00Z Deputy chief flight director Zebulon Scoville said nearby craters and other geologic features would be visible in any pictures, but little else. NASA capsule flies over Apollo landing sites, heads home 2022-12-05T05:00:00Z The imagery is mostly abstract, but suggests animals, plants or geologic forms. Review | In the galleries: A show that’s almost a scavenger hunt 2022-12-02T05:00:00Z To find out just how much geologic goulash can potentially come out of the volcano if it erupts, scientists applied a relatively new technique to a 20-year-old catalog of seismic data. New Estimate Finds More Magma Under Yellowstone Supervolcano 2022-12-01T05:00:00Z Consent from people living nearby is another universal requirement to establish an accepted geologic repository. Nuclear Waste Is Piling Up. Does the U.S. Have a Plan? 2023-03-06T05:00:00Z Other geologic time units are useful because they orient scientists in stretches of deep time that left no written records and sparse scientific observations. For Planet Earth, This Might Be the Start of a New Age 2022-12-17T05:00:00Z In other words, there are large-scale geologic processes that seem to absorb carbon dioxide over huge time scales. Is Earth a self-regulating organism? New study suggests our planet has a built-in climate control 2022-11-21T05:00:00Z The paleovalleys are rare geologic features in the Central Valley, where much of the ground has layers of impermeable clay and silt that impede the downward movement of water. From the air, scientists map 'fast paths' for recharging California's groundwater 2022-11-18T05:00:00Z “These geologic ‘fast paths’ are the natural infrastructure that we need for managing our groundwater resources,” says Stanford University geophysicist Rosemary Knight, lead author of a new study published on Tuesday in Environmental Research Letters. Hidden ‘Paleo Valleys’ Could Help California Survive Droughts 2022-11-18T05:00:00Z But after an hour or so, the stony silence yielded hints of cherries and earth, the beginnings of a vineyard story extending back through geologic history. Perspective | Get to know beaujolais, a food-friendly, affordable wine 2022-11-03T04:00:00Z “But other than that, there’s practically nothing out there in the geologic world that’s the best line.” For Planet Earth, This Might Be the Start of a New Age 2022-12-17T05:00:00Z In addition to building a model, the study researchers reviewed geologic evidence to study the tsunami’s path and power. Asteroid that wiped out dinosaurs triggered ‘megatsunami,’ with mile-high waves 2022-10-19T04:00:00Z If you were to gauge humanity by the quantity of our disaster movies, the fear that an asteroid will hit planet Earth looms large — and perhaps rightly so, given this planet's geologic history. A "planet killer" asteroid is hiding in the Sun's glare 2022-11-02T04:00:00Z In geologic terms, that is nothing at all. 'A story of extinction.' La Brea Tar Pits recognized as a geological heritage site 2022-10-28T04:00:00Z A massive boom in American oil and gas production over the past 15 years spurred by technological advances in hydraulic fracturing and horizontal drilling unlocked previously inaccessible geologic formations. Oil giants sell thousands of California wells, raising worries about future liability 2022-10-27T04:00:00Z And using nuclear bombs to mark a geologic interval strikes some scientists as abhorrent, or at least beside the point. For Planet Earth, This Might Be the Start of a New Age 2022-12-17T05:00:00Z The researchers said the geologic findings added confidence to their model simulations. Asteroid that wiped out dinosaurs triggered ‘megatsunami,’ with mile-high waves 2022-10-19T04:00:00Z But deeper wells go further back into geologic history, drawing water that was put there thousands, if not millions, of years ago. Can a Start-Up Help Companies Monitor and Manage Their Water Use? 2022-10-26T04:00:00Z The same geologic process that is responsible for the San Francisco Bay region’s beautiful coastlines, bays, hills, and valleys is also the primary driving force for earthquakes along faults in the region. Major 5.1 quake rocks Bay Area 2022-10-25T04:00:00Z Mars, our planetary neighbor with a similar geologic history, has long been a fascination of Earthlings. Mars may have been teeming with life until it underwent climate change, study suggests 2022-10-16T04:00:00Z But Dr. Gibbard of Cambridge fears that, by trying to add the Anthropocene to the geologic time scale, the working group might actually be diminishing the concept’s significance. For Planet Earth, This Might Be the Start of a New Age 2022-12-17T05:00:00Z “So if this did happen, it’s a process that left almost no geologic trace,” says Margaret Landis, a planetary scientist at the University of Colorado Boulder, who was not involved in the study. The Milky Way’s Spiral Arms May Have Carved Earth’s Continents 2022-09-30T04:00:00Z “And what’s different in this climate cycle compared to previous cycles of warming and cooling is just the pace of change,” with warming becoming more rapid than it has across geologic time, she said. Lifting the fog on climate change: Complex impacts need complex solutions | Provided by MJ Murdock Charitable Trust 2022-09-23T04:00:00Z Drop by the center to get a feel for the geologic history of the region and relax on the shaded patio. Chase Cascade lava on a Volcanic Legacy Scenic Byway road trip 2022-09-16T04:00:00Z "Studies of climate change in the geologic past paint a picture of a world that can change much more rapidly and strongly than what is predicted by most modern climate models," Caldeira argued. We now have a timeline on sea level rise from climate change 2022-09-07T04:00:00Z He and others argue the Anthropocene deserves a looser geologic label: an event. For Planet Earth, This Might Be the Start of a New Age 2022-12-17T05:00:00Z Minerals are geologic time capsules of the environments in which they form. New Classification Reveals Just How Many Ways Minerals Form 2022-09-05T04:00:00Z "All six Apollo sites were in sort of the central part of the near side, and now we're going someplace completely different, with different and ancient geologic terrains." NASA Unveils Candidate Landing Sites for Artemis Astronauts 2022-08-23T04:00:00Z More angular grains of sand are usually found closer to mountains, their geologic source. Sandcastle Engineering: A Geotechnical Engineer Explains How Water, Air and Sand Create Solid Structures 2022-08-23T04:00:00Z Because fluoride ion is a weak base, its solubility is also affected by solution pH, and so geologic or other processes that change groundwater pH will also affect the precipitation of fluorite. Chemistry 2019-02-14T00:00:00Z Ten thousand years after our species began forming primitive agrarian societies, a panel of scientists on Saturday took a big step toward declaring a new interval of geologic time: the Anthropocene, the age of humans. For Planet Earth, This Might Be the Start of a New Age 2022-12-17T05:00:00Z These mass extinctions mark the ends of geologic periods. Biology for AP Courses 2022-06-09T00:00:00Z Purported impact craters sometimes turn out to be geologic illusions. African Crater Adds an Asteroid Strike to the Late Dinosaur Era 2022-08-17T04:00:00Z I made sure to go through it in geologic time order, and as soon as I saw that diplodocus skeleton, I just flashed back to 1999 when I first walked into that museum. How musician Aeryn Goldstein would spend a perfect day in D.C. 2022-08-01T04:00:00Z Scientists expect to collect geologic and other data for at least a year from this low polar orbit. South Korean spacecraft launched to the moon, country’s 1st 2022-08-04T04:00:00Z Our current geologic epoch, the Holocene, began 11,700 years ago with the end of the last big ice age. For Planet Earth, This Might Be the Start of a New Age 2022-12-17T05:00:00Z Early Earth had a very different atmosphere, was subject to extreme radiation, and had a lot of geologic upheaval and volcanic activity. Biology for AP Courses 2022-06-09T00:00:00Z But such regionally destructive impact events are “a fairly common geologic occurrence” — scant comfort to those living on Earth today. African Crater Adds an Asteroid Strike to the Late Dinosaur Era 2022-08-17T04:00:00Z The Earth’s geologic record shows that over time, these particles can act as a cooling system, deflecting the sun’s radiation before it can enter the atmosphere. McKinney fire has hit the stratosphere, spewing the 'fire-breathing dragon of clouds' 2022-08-03T04:00:00Z When it comes to Earth as a whole, cosmic-ray-produced neutrinos are on the verge of providing information that no other geologic methods can offer. Physics Particles Fly as Practical Tools 2022-07-29T04:00:00Z Explorers want to know what lives along the continuous range of underwater volcanoes and what happens when geologic processes that create life-supporting heat are halted. There Are Holes on the Ocean Floor. Scientists Don’t Know Why. 2022-07-28T04:00:00Z Earth’s early environment was full of extreme places with much oxygen in the atmosphere, no ozone to shield Earth’s surface from mutagenic radiation, much geologic upheaval and volcanic activity. Biology for AP Courses 2022-06-09T00:00:00Z To help rule out false positives, astronomers will need to understand a planet of interest well enough to understand whether its geologic or atmospheric processes could mimic a biosignature. How the James Webb telescope will search for alien life 2022-07-24T04:00:00Z “This mixing process is an essential geologic process, but it’s never been directly observed,” said Dr. Marshall. Reaching Closer to Earth’s Core, One Lava Scoop at a Time 2022-07-22T04:00:00Z An overall timeline of the Earth’s history is called the geologic time scale. Miller & Levine Biology 2018-01-01T00:00:00Z The Milford Valley’s veneer of vegetation is so thin that much of its geologic history is exposed like an open book. In Utah, researchers are trying to unlock Earth’s heat and make geothermal energy a reality 2022-07-13T04:00:00Z Earth’s early environment was full of extreme places with little oxygen in the atmosphere, no ozone to shield Earth’s surface from mutagenic radiation, less geologic upheaval and volcanic activity. Biology for AP Courses 2022-06-09T00:00:00Z The director also embraced a geologic methodology in her filmmaking: a willing acceptance that not every question would get an answer, and that there’s beauty in the unknown. This couple loved volcanoes as much as each other. 'Fire of Love' tells their story 2022-07-13T04:00:00Z The carbon cycle is most easily studied as two interconnected subcycles: one dealing with rapid carbon exchange among living organisms and the other dealing with the long-term cycling of carbon through geologic processes. Environmental Biology 2018-09-06T00:00:00Z The geologic time scale is based on both relative and absolute dating. Miller & Levine Biology 2018-01-01T00:00:00Z From Soap Lake, head back to Seattle — or extend your geologic exploration by visiting the Drumheller Channels National Natural Landmark or Palouse Falls State Park. Washington state’s best prehistoric road trip through time | Provided by Western Washington Toyota Dealers 2022-07-13T04:00:00Z Early Earth had a very different atmosphere and was subject to extreme radiation, but there was very little geologic upheaval or volcanic activity. Biology for AP Courses 2022-06-09T00:00:00Z Space is directionless, but many of the most famous Hubble photographs place solid-seeming surfaces at the bottom of the frame, vaguely geologic structures rising up, and then empty horizons above. The Lonely Work of Picking the Universe’s Best Astronomy Pictures 2022-07-12T04:00:00Z Over the course of millions of years, biomass from photosynthetic organisms can create energy-rich fossil fuels through the geologic process of burial and transformation through heat and pressure. Environmental Biology 2018-09-06T00:00:00Z The major divisions of the geologic time scale are eons, eras, and periods. Miller & Levine Biology 2018-01-01T00:00:00Z If geologic process were the only processes controlling our atmosphere, it would consist mostly of carbon dioxide, like the atmosphere of Venus. Physical Geology 2015-01-01T00:00:00Z Earth’s early environment was full of extreme places with little oxygen in the atmosphere, no ozone to shield Earth’s surface from mutagenic radiation, much geologic upheaval and volcanic activity. Biology for AP Courses 2022-06-09T00:00:00Z Because each earthquake occurs in a unique geologic setting and the rupture area is often hard to measure, estimates of moment magnitude can take days or even months to calculate. An Introduction to Geology 2017-01-01T00:00:00Z This sediment then is moved to land over geologic time by the uplifting of Earth’s surface. Environmental Biology 2018-09-06T00:00:00Z If all geologic time were imagined in the form of a 24-hour clock, humans would only fall into the last minute of that clock. Miller & Levine Biology 2018-01-01T00:00:00Z The contrast in lithology between formations required to justify their establishment varies with the complexity of the geology of a region and the detail needed for geologic mapping and to work out its geologic history. Physical Geology 2015-01-01T00:00:00Z This geologic time period was one of the three warmest periods in Earth’s geologic history. Biology for AP Courses 2022-06-09T00:00:00Z Geologically, a landslide is a general term for mass wasting that involves fast-moving geologic material. An Introduction to Geology 2017-01-01T00:00:00Z Over geologic time, the calcium carbonate forms limestone, which comprises the largest carbon reservoir on Earth. Environmental Biology 2018-09-06T00:00:00Z “But it’s hard to get a good date on them,” Granger, a professor at Purdue University who specializes in dating geologic deposits, said in a statement. Fossils in South African cave reignite debate on origins of humankind 2022-06-29T04:00:00Z No formation is considered justifiable and useful that cannot be delineated at the scale of geologic mapping practiced in the region. Physical Geology 2015-01-01T00:00:00Z The carbon cycle is most easily studied as two interconnected sub-cycles: one dealing with rapid carbon exchange among living organisms and the other dealing with the long-term cycling of carbon through geologic processes. Biology for AP Courses 2022-06-09T00:00:00Z This chapter describes the systems involved in regulating Earth’s temperature, its climate, geologic evidence of past climate changes, and the role humans have on today’s climate change. An Introduction to Geology 2017-01-01T00:00:00Z It can then be moved to land in geologic time by uplift of Earth’s crust and thereby incorporated into terrestrial rock. Environmental Biology 2018-09-06T00:00:00Z Scientists know most extinctions took place among marine life, but how exactly the extinction event affected life on land has been a long-standing geologic puzzle. Feathers May Have Helped Dinosaurs Survive Their First Apocalypse 2022-07-01T04:00:00Z Changes in Earth’s magnetic field can also be used to date events in geologic history. Physical Geology 2015-01-01T00:00:00Z Some of this nitrogen falls to the ocean floor as sediment, which can then be moved to land in geologic time by uplift of the Earth’s surface and thereby incorporated into terrestrial rock. Biology for AP Courses 2022-06-09T00:00:00Z However, there are a few minor pockets of magma that form near the surface where geologic processes cause melting. An Introduction to Geology 2017-01-01T00:00:00Z These rocks originate from ocean sediments that are moved to land by the geologic uplifting of ocean sediments. Environmental Biology 2018-09-06T00:00:00Z The causes of death on land are not as clear in the geologic record as they are for the seas, however, and there may have been other important climate processes at play. Feathers May Have Helped Dinosaurs Survive Their First Apocalypse 2022-07-01T04:00:00Z “I was pretty confident when I saw it that this was a new geologic feature,” Mr. Sonke said. They Found Two New Craters on the Moon and Discovered a New Mystery 2022-06-27T04:00:00Z This sediment then is moved to land over geologic time by the uplifting of areas of the Earth’s surface. Biology for AP Courses 2022-06-09T00:00:00Z This relationship between cooling rates and grain sizes of the solidified minerals in igneous rocks is important for interpreting the rock’s geologic history. An Introduction to Geology 2017-01-01T00:00:00Z “A little bit ironic that this spectacular landscape was created by violent geologic and hydrologic events, and it’s just not very handy when it happens while we’re all here settled on it.” Floods leave Yellowstone landscape ‘changed dramatically' 2022-06-15T04:00:00Z “We can only do that by looking at the geologic record.” Feathers May Have Helped Dinosaurs Survive Their First Apocalypse 2022-07-01T04:00:00Z “A little bit ironic that this spectacular landscape was create by violent geologic and hydrologic events, and it’s just not very handy when it happens while we’re all here settled on it.” Yellowstone landscape ‘dramatically changed’ after historic floods 2022-06-15T04:00:00Z In 1795, a Scottish geologist named Charles Hutton suggested that Earth’s geologic features could be explained by gradual processes that were still operating. Biology for AP Courses 2022-06-09T00:00:00Z Different tectonic or geologic environments cause metamorphism, including collisions, subduction, faulting, and even impacts from space. An Introduction to Geology 2017-01-01T00:00:00Z That business — which Exxon says could bury massive amounts of carbon dioxide underground in old geologic structures — is key to the company’s future, James said. Climate pressure from employees, shareholders rattles Big Oil 2022-05-27T04:00:00Z And they’ve learned an enormous amount about the mechanisms that drive Mars’s geologic activity. Largest Marsquake Ever Recorded May Be InSight’s Swan Song 2022-05-24T04:00:00Z This geologic era derives from the relentless expansion of humankind's destructive activities on Earth, impacting the atmosphere, oceans and wildlife to the point that they threaten the integrity of the biosphere. This Amazonian Indigenous Group Has Lessons in Sustainable Living for All of Us 2022-05-23T04:00:00Z This was in direct contrast to other scientific thought at the time, which included well-accepted proposals that geologic layers were representative of catastrophic events caused by processes no longer operating in the present time. Biology for AP Courses 2022-06-09T00:00:00Z Taking into account carbon-14 baseline levels must be calibrated against other reliable dating methods, carbon dating has been shown to be a reliable method for dating archaeological specimens and very recent geologic events. An Introduction to Geology 2017-01-01T00:00:00Z The founding legislation directed the Forest Service to “protect the geologic, ecologic, and cultural resources” of the monument, “allowing geologic forces and ecological succession to continue substantially unimpeded.” An area unlike any in the world: Make Mount St. Helens a national park 2022-05-13T04:00:00Z As the ground around these volcanic hotspots settles over geologic timescales, the Martian crust cracks like a fallen soufflé, sending shockwaves rippling through the planet. Largest Marsquake Ever Recorded May Be InSight’s Swan Song 2022-05-24T04:00:00Z One solution might be to use younger geologic spots on the moon, like lava flows, for digging up planting soil. Scientists grow plants in lunar dirt, next stop moon 2022-05-12T04:00:00Z Hutton proposed geologic features as the result of slow and consistent change, such as valleys formed by rivers wearing through rock. Biology for AP Courses 2022-06-09T00:00:00Z The vast majority of life today consists of soft-bodied and/or single-celled organisms, and will not likely be preserved in the geologic record except under unusual conditions. An Introduction to Geology 2017-01-01T00:00:00Z From the start, he says, the AWG has operated backward, starting with the proposed Anthropocene and looking for markers, rather than starting with the geologic record itself. Bogs, lakebeds, and sea floors compete to become Anthropocene’s ‘golden spike’ 2022-05-05T04:00:00Z In an arbitration hearing last October, Branch Civil and Flatiron Construction contended that geologic conditions in the construction zone affected their ability to keep the project on schedule. Virginia 95 Express Lanes to Fredericksburg to open in late 2023 2022-05-02T04:00:00Z Species that can’t easily move in search of new habitats, such as fish that depend on specific coastal wetlands or geologic formations on the sea floor, will be more likely die out. Ocean animals face a mass extinction from climate change, study finds 2022-04-28T04:00:00Z The idea that geologic change is the result of slow, continuous processes rather than sudden, substantial change connects directly to Darwin’s hypothesis that, given enough time, slow and subtle processes could produce substantial biological change. Biology for AP Courses 2022-06-09T00:00:00Z Geologists construct geologic histories of areas by mapping and making stratigraphic columns-a detailed description of the strata from bottom to top. An Introduction to Geology 2017-01-01T00:00:00Z The last Mount Edgecumbe eruption preserved in the geologic record was about 4,500 years ago. Earthquakes recorded near Alaska volcano dormant 800 years 2022-04-13T04:00:00Z Chevron said it plans to inject the carbon “underground into nearby deep geologic formations.” Carbon capture: key decarbonizing tool or ‘false solution?’ 2022-04-13T04:00:00Z Such deposits only form in tropical settings with high seasonal rainfall with a particular geologic bedrock. Electric vehicles are great, but the environmental cost of nickel batteries is too high 2022-04-08T04:00:00Z In other words, Lyell argued that the same geologic processes operating in the present had operated in the past, and at the same rate. Biology for AP Courses 2022-06-09T00:00:00Z Index fossils represent assemblages or groups of organisms that were uniquely present during specific intervals of geologic time. An Introduction to Geology 2017-01-01T00:00:00Z As it turns out, geologic circumstances under Seattle are much like those under Kobe. A deadly earthquake absolutely, positively will ravage Seattle at some point. Here’s how to survive it. 2022-04-01T04:00:00Z However, given the diversity in terrain, scientists are hopeful that it holds geologic revelations that could show proof of past microbial life that perhaps existed billions of years ago on Mars. NASA now wants to send two landers to bring Mars rocks back to Earth — here's why 2022-03-29T04:00:00Z “That said, over geologic time, the probability is 100 percent that there’s an asteroid that’s got our number on it.” How to Spot Asteroids 2022-03-15T04:00:00Z While CCS for coal can be costly and there can be geologic barriers to storing carbon in some places, there are added technological challenges to applying carbon capture to natural gas plants. What the EPA’s New Plans for Regulating Power Plants Mean for Carbon 2022-03-11T05:00:00Z In fact, most of the geologic time ranges are mapped to fossil assemblages. An Introduction to Geology 2017-01-01T00:00:00Z Our planet is home to many radioactive substances—not just in its geologic innards or its weapons caches but also in its hospitals, at its industrial sites and in its food processing plants. Radioactive Material Is Basically Everywhere and That’s a Problem 2022-03-11T05:00:00Z In the process, that could help scientists date existing craters on the Moon and refine our geologic understanding of Earth's natural satellite. A piece of space junk hit the Moon. Oddly, scientists are elated 2022-03-08T05:00:00Z Although the evidence points to more danger in the central section of the fault than previously thought, the researchers say it isn’t cause for alarm because of advances in building codes and growing geologic knowledge. ‘Aseismic’ creeping part of California fault once hosted huge earthquakes 2022-03-06T05:00:00Z The finding suggests that tsunamis hit the country’s coastline more often than previously thought and that hazard assessments should consider both geologic and historical records. Science News Briefs from around the World: March 2022 2022-03-06T05:00:00Z This video illustrates geologic structures and associated map symbols. An Introduction to Geology 2017-01-01T00:00:00Z They play a part in cancer therapy, blood irradiation, medical and food sterilization, structure and equipment testing, geologic exploration and instrument calibration. Radioactive Material Is Basically Everywhere and That’s a Problem 2022-03-11T05:00:00Z He structures the narrative through an ecological lens: Each major division of geologic time is given a single chapter, which is focused on a single lost ecosystem. A Reverse Journey through Geologic Time, a Tale of Wild Horses and Interspecies Kinship, and More 2022-02-28T05:00:00Z “The surface of Mars—the geology, the geologic history—is preserved. We can see back 4.3 billion years on the surface.... You can’t do that other places.” What We Learned from the Perseverance Rover’s First Year on Mars 2022-02-17T05:00:00Z Many asteroids have been drifting in the cold of space for millions or even billions of years without exhibiting any geologic change. Astronomers discover a pair of young "twin" asteroids, barely older than the United States 2022-02-08T05:00:00Z In rotational landslides, the toe is often a large, disturbed mound of geologic material, forming as the landslide moves past its original rupture surface. An Introduction to Geology 2017-01-01T00:00:00Z Theodossiou explained that Cyprus has seen “very little” exploration activity to date and is regarded as “frontier exploration area” with “significant geologic uncertainty” about how much gas is contained in pockets beneath the seabed. ExxonMobil: Pipeline, ship or both for exporting Cyprus gas 2022-01-31T05:00:00Z Additional lines of evidence, such as geologic indicators of atmospheric and oceanic carbon dioxide during this period, could help further test the hypothesis, Feng says. Prehistoric Volcanoes Heated Earth in a Global Chain Reaction 2022-01-04T05:00:00Z Perseverance’s early observations are already revealing that Jezero’s geologic history is richer than previously imagined, with dramatic shifts in environmental conditions. What We Learned from the Perseverance Rover’s First Year on Mars 2022-02-17T05:00:00Z Yet these geologic wonders are still painted as villains in the media, in movies and in books. Review | The importance of volcanoes, on Earth and beyond 2021-12-29T05:00:00Z A geologic park was constructed in the now vacant area. An Introduction to Geology 2017-01-01T00:00:00Z Once captured, the CO2 can be sent via pipelines to underground storage in geologic formations. Plans to capture CO2 from coal plants wasted federal dollars, watchdog says 2021-12-30T05:00:00Z She explains the complicated geologic history of the canyon, with the uplift of the Colorado Plateau paving the way for the Colorado River to carve into the rock. Seattle family checks off life goal with 4-day, rim-to-rim trek of Grand Canyon 2021-12-04T05:00:00Z Hell, he was already communicating his gloomy-gus vibes on “With the Beatles” way back in 1963 — a geologic age, in Beatles time — with his first composition, “Don’t Bother Me.” How much Beatles is too much? Our experts gorge on the new docuseries, 'Get Back' 2021-11-27T05:00:00Z So why, across the broad sweep of geologic history, do such useful teeth only appear among mammals and no other surviving groups of animals? How Did Elephants and Walruses Get Their Tusks? It’s a Long Story. 2021-10-28T04:00:00Z Our developed modern society, like all societies before it, is dependent on geologic resources. An Introduction to Geology 2017-01-01T00:00:00Z Arbic, a co-author on the new paper, wondered whether changing day length could have affected photosynthesis over geologic time. Early Earth’s Slowing Rotation Helped Oxygen Build Up 2021-11-01T04:00:00Z Air Products will capture and store about 95% of the carbon dioxide generated at the facility in deep underground geologic formations leased from the state. $4.5B clean energy complex planned for southeast Louisiana 2021-10-14T04:00:00Z For instance, much of Earth seems to lack a distressingly large one-billion-year chunk of the geologic record, a glaring omission that geologists refer to somewhat ominously as the Great Uncomformity. Fungi Might Have Helped Drag the Planet Out of its ‘Snowball Earth’ Phase 2021-09-24T04:00:00Z However, there are natural geologic processes, unrelated to life, that can produce methane. Odd methane plumes on one of Saturn's moons may be evidence of life, study says 2021-09-21T04:00:00Z Geologists also study natural hazards created by geologic processes. An Introduction to Geology 2017-01-01T00:00:00Z We have tree ring data for most of the Holocene—our current geologic epoch, which began about 12,000 years ago. Solar ‘Superflares’ Rocked Earth Less Than 10,000 Years Ago—and Could Strike Again 2021-09-13T04:00:00Z Human progress has had measurable effects on the planet, even down to the layers of concrete, plastics and nuclear waste we leave behind—indelible enough, perhaps, to mark a new geologic era. The Story of Us 2021-08-31T04:00:00Z The Institute will also work to investigate the state of the building and its materials at the time of the collapse, as well as the "geologic characteristics" of the land beneath the tower. Miami building collapse: Federal oversight team names team of investigators 2021-08-25T04:00:00Z Catching erupting volcanoes in the act would provide an open window into Venus’s dark geologic heart, allowing scientists to compare the vigor of its rhythm with that of Earth’s. NASA Just Broke the ‘Venus Curse’: Here’s What It Took 2021-08-17T04:00:00Z Rather than viewing geology as an isolated system, earth system scientists study how geologic processes shape not only the world but all the spheres it contains. An Introduction to Geology 2017-01-01T00:00:00Z Earthquakes are the result of the tectonic plates slowly moving against each other and creating friction over time, said Gavin Hayes, senior science adviser for earthquake and geologic hazards at USGS. EXPLAINER: Why are earthquakes so devastating in Haiti? 2021-08-15T04:00:00Z If all goes according to plan, this facility will, in the mid-2020s, become the world’s first operating deep geologic repository for spent nuclear fuel. The Art of Pondering Earth's Distant Future 2021-08-13T04:00:00Z Do any precedents exist in the geologic record for the climatic changes we are seeing today? Paleoclimate Data Raises Alarm on Historic Nature of Climate Emergency 2021-08-12T04:00:00Z A subsequent image of the tube confirmed the worst: it was Christmas Day, and Santa forgot to turn up with some geologic gifts. Crumbly Mars Rock, Not Hardware Flaws, Scuttled Perseverance's First Sample Attempt 2021-08-12T04:00:00Z The figure of this geologic time scale shows the names of the units and subunits. An Introduction to Geology 2017-01-01T00:00:00Z Indeed, the worst-case warming scenario is so far outside the realm of human experience, so much faster than anything observed in the geologic record, that all of the consequences are hard to predict. Perspective | Why we shouldn’t give in to climate despair 2021-08-09T04:00:00Z “No matter what it is, it’s got incredible significance for the geologic history of this entire basin,” says Justin Simon, a return sample scientist for Perseverance at NASA’s Johnson Space Center. NASA’s Perseverance Mars Rover Grabs First Rock for Return to Earth 2021-08-06T04:00:00Z It sets aside funds to permit wells for burying carbon dioxide deep in geologic formations. The infrastructure deal could create pipelines for captured CO2 2021-08-03T04:00:00Z The geologists who wrote the report usually study things such as tectonic plate boundaries and the way those geologic plates fold over one another. Scientists expected thawing wetlands in Siberia’s permafrost. What they found is ‘much more dangerous.’ 2021-08-02T04:00:00Z Nutrients can be from geologic material, like phosphorus-rich rock, but are most often sourced from fertilizer and animal and human waste. An Introduction to Geology 2017-01-01T00:00:00Z Next, the pluggers must measure the wellbore and determine to what depths they must pour cement to keep the well from leaking into water tables or other underground geologic formations. Why it’s so hard and expensive to plug an abandoned well 2021-07-29T04:00:00Z Familiar biochemical mainstays such as DNA, RNA and proteins are poor candidates for such searches, being vulnerable to degradation by radiation and geologic activity. NASA’s Perseverance Mars Rover Grabs First Rock for Return to Earth 2021-08-06T04:00:00Z A lay reader might not need the discourse on the proper naming of geologic epochs, but overall, it’s an excellent grounding in how fire functions, how we think about it and why that matters. As another brutal fire season rages, 4 new books bring context and consolation 2021-07-27T04:00:00Z The sample was discovered when the astronauts returned to Earth, Mr. Scott described what he’d done, and “Seatbelt Rock” became one of the most prized geologic finds from Apollo 15. 50 Years Ago, NASA Put a Car on the Moon 2021-07-27T04:00:00Z The development of a trap could be a result of many different geologic situations. An Introduction to Geology 2017-01-01T00:00:00Z The field of geochronology is dedicated to dating Earth’s geologic materials. How I Let Go of My Time-Management Anxiety 2021-07-20T04:00:00Z Korschinek also needed the right sample: a geologic deposit laid down over millions of years in which an iron signal might stand out. Exploding stars may have assaulted ancient Earth 2021-07-15T04:00:00Z In Pyne’s hands, fire becomes more than simply a natural phenomenon: Among his metaphors is fire as a time traveler, burning carbon to release the planet’s geologic past into its environmental future. As another brutal fire season rages, 4 new books bring context and consolation 2021-07-27T04:00:00Z We know the forest was growing at a time in the geologic past when the Earth was much warmer than today. A volcanic eruption buried a forest in Peru – now the petrified trees are showing us their stories 2021-06-29T04:00:00Z Varves are valuable geologic records of climatic histories, especially those found in lakes and glacial deposits. An Introduction to Geology 2017-01-01T00:00:00Z We are still deciphering parts of the planet’s geologic history, in hopes of anticipating future, potentially cataclysmic, events. How I Let Go of My Time-Management Anxiety 2021-07-20T04:00:00Z The researchers argued that Venus’ phosphine levels are too high to be geologic in origin. Study nixes life in clouds of Venus, but maybe in Jupiter’s? 2021-06-28T04:00:00Z Thanks to improvements in radio-isotopic dating techniques, which are used to date rocks and carbon, the barriers to age-dating geologic events are becoming less of an obstacle. The "pulse" of the Earth: Disastrous geologic events happen every 27 million years, study finds 2021-06-24T04:00:00Z A radio science experiment will be able to use slight changes in the planet’s gravity to parse the layer cake structure of Venus’s geologic guts. Venus Will Have a Fleet of Spacecraft as Europe Adds Orbiter Mission 2021-06-10T04:00:00Z Imbrications are useful for analyzing paleocurrents, or currents found in the geologic past, especially in alluvial deposits. An Introduction to Geology 2017-01-01T00:00:00Z Maybe that’s why I find the concept of geologic time so soothingly familiar. How I Let Go of My Time-Management Anxiety 2021-07-20T04:00:00Z The other mission, called Veritas, will seek a geologic history by mapping the rocky planet’s surface. NASA picks Venus as hot spot for two new robotic missions 2021-06-02T04:00:00Z "But our study provides statistical evidence for a common cycle, suggesting that these geologic events are correlated and not random." The "pulse" of the Earth: Disastrous geologic events happen every 27 million years, study finds 2021-06-24T04:00:00Z Catching erupting volcanoes in the act would provide an open window into Venus’s dark geologic heart, allowing scientists to compare the vigor of its rhythm to that of Earth’s. Is NASA about to Lift the ‘Venus Curse?’ 2021-06-02T04:00:00Z The figure of the geologic time scale represents time flowing continuously from the beginning of the Earth, with the time units presented in an unbroken sequence. An Introduction to Geology 2017-01-01T00:00:00Z So far, researchers think the fossils made their way to the site because of volcanoes and floods that overtook the area during a time of geologic transition. ‘Giant treasure trove’ of fossils may give a better picture of Miocene epoch about 10 million years ago 2021-05-28T04:00:00Z Like geologic time, my life is divided into distinct food periods. Get to know your oats, and all the types and ways to eat them 2021-04-12T04:00:00Z "The last time we see a pulse like this in the geologic record was about 7 to 10 million years ago," Rampino said. The "pulse" of the Earth: Disastrous geologic events happen every 27 million years, study finds 2021-06-24T04:00:00Z “Trenches on other parts of the site are not needed, as geologic exploration has already determined there are no active faults,” said a statement issued by the Department of Building and Safety. A lurking earthquake fault has blocked Hollywood's tallest building. Will it ever rise? 2021-04-21T04:00:00Z With the expansion of science and technology, some geologists think the influence of humanity on natural processes has become so great they are suggesting a new geologic time period, known as the Anthropocene. An Introduction to Geology 2017-01-01T00:00:00Z Researchers have used geologic records like tree rings, ice cores, corals and sediments that preserve information about prehistoric climates to extend the climate record. The Science of Climate Change Explained: Facts, Evidence and Proof 2021-04-19T04:00:00Z Yet there was geologic evidence of something bigger in Japan’s distant past: a magnitude 8.6 tremor more than 1,000 years earlier. California’s tsunami vulnerability may be greater than once believed 2021-03-25T04:00:00Z We’ve all adapted to the world as it exists now, and we’ve been able to do so because it has changed on a geologic pace. The loneliest polar bear has company in a warming world 2021-03-30T04:00:00Z “It was actually green at one point in time. And it’s been, you know, since, it’s a whole lot whiter now so we’ve experienced climate change throughout geologic time.” Assaulting the Truth, Ron Johnson Helps Erode Confidence in Government 2021-03-21T04:00:00Z The geologic material below the slide surface does not move, and is marked on the sides by the flanks of the landslide and at the end by the toe of the landslide. An Introduction to Geology 2017-01-01T00:00:00Z Over millions of years, atmospheric CO2 levels have changed depending on how much of the gas volcanoes belched into the air and how much got removed through geologic processes. The Science of Climate Change Explained: Facts, Evidence and Proof 2021-04-19T04:00:00Z “It was actually green at one point in time. And it’s been, you know, since, it’s a whole lot whiter now, so we’ve experienced climate change throughout geologic time.” Assaulting the Truth, Ron Johnson Helps Erode Confidence in Government 2021-03-21T04:00:00Z Just the blink of an eye in geologic terms. A forgotten Cold War experiment has revealed its icy secret. It’s bad news for the planet. 2021-03-15T04:00:00Z Just a blink of an eye in geologic terms. Study reveals Greenland ice sheet melted once before, and it could happen again 2021-03-15T04:00:00Z In the geologic sense, long-term means a scale of 10’s to 100’s of millions of years and short-term means a 100 to 200,000-year scale. An Introduction to Geology 2017-01-01T00:00:00Z If this circulation grinds almost to a halt, as it’s done in the geologic past, it would alter weather patterns around the world. The Science of Climate Change Explained: Facts, Evidence and Proof 2021-04-19T04:00:00Z This was a concern for a North Carolina community we are working with, but our analysis suggested that the arsenic found in their wells was geologic in origin. New Technologies Could Protect Against Arsenic Toxicity in Water 2021-03-11T05:00:00Z Salon also asked Mantilla and Chester if this discovery tells us anything about the mass extinction event that marks the boundary between two geologic epochs. Humanity's distant primate ancestors likely co-existed with dinosaurs, according to study 2021-03-05T05:00:00Z Project scientist Ken Farley said the site is on the boundary between rock regions representing two important moments in Mars’s geologic history. NASA rover Perseverance lands on Mars in mission to search for past life 2021-02-18T05:00:00Z On a geologic scale, the source of atmospheric CO2 is volcanoes and the sink for CO2 is the weathering process that buries CO2 in sediments. An Introduction to Geology 2017-01-01T00:00:00Z Later, scientists began tracking surface temperatures with satellites and looking for clues about climate change in geologic records. The Science of Climate Change Explained: Facts, Evidence and Proof 2021-04-19T04:00:00Z This device uses radar waves to probe underground geologic features. NASA’s Mars rover, Perseverance, aims for dicey landing to search for ancient life 2021-02-16T05:00:00Z The danger of the term “Anthropocene,” which many scientists have lobbied to use to describe the current geologic period of Earth's history defined by human impact, is that it sounds clinical and detached. Fractal Shapes, STI Treatment and Prevention, and Other New Science Books 2021-02-13T05:00:00Z But using the rock itself to peer into the past is difficult because few whole rocks have survived since Earth's infancy, leaving gaps in the geologic history. Earth’s mountains may have mysteriously stopped growing for a billion years 2021-02-11T05:00:00Z During geologic times when the climate is cooler, more of this precipitation is locked onto land in the form of glacial ice. An Introduction to Geology 2017-01-01T00:00:00Z This warming is unprecedented in recent geologic history. The Science of Climate Change Explained: Facts, Evidence and Proof 2021-04-19T04:00:00Z This device uses radar waves to probe underground geologic features. NASA’s Mars rover, Perseverance, aims for dicey landing to search for ancient life 2021-02-16T05:00:00Z “The geologic evidence is overwhelming that the climate was very different than it is today,” says Ramses Ramirez, who studies the ancient Martian climate at the Earth-Life Science Institute in Tokyo, Japan. Why are people so dang obsessed with Mars? 2021-02-09T05:00:00Z Slowed tectonics, however, doesn’t entirely square with the geologic record, according to Spencer of Queen’s University. Earth’s mountains may have mysteriously stopped growing for a billion years 2021-02-11T05:00:00Z An important use of geologic knowledge is locating economically valuable materials for use in society. An Introduction to Geology 2017-01-01T00:00:00Z Today, however, we are the ones causing CO2 levels to increase at an unprecedented pace by taking ancient carbon from geologic deposits of fossil fuels and putting it into the atmosphere when we burn them. The Science of Climate Change Explained: Facts, Evidence and Proof 2021-04-19T04:00:00Z This device uses radar waves to probe underground geologic features. NASA’s Mars rover, Perseverance, aims for dicey landing to search for ancient life 2021-02-16T05:00:00Z This instrument was designed to measure how much of Mars’s internal heat is escaping outward—a key metric for learning how much geologic “life” a world ever had and how much it has left. NASA Ends Efforts to Deploy Mars InSight's 'Mole' 2021-01-20T05:00:00Z Yellowstone National Park is an excess of geologic riches, from sweeping volcanic vistas to bubbling caldrons with multicolored irises. The Cold Case of What’s Heating Up Yellowstone’s Steamboat Geyser 2021-01-06T05:00:00Z Any place where the amount of valuable material is concentrated is a geologic and geochemical anomaly. An Introduction to Geology 2017-01-01T00:00:00Z We realized that this stone wouldn’t simply be a highlight in our kitchen — it was also a geologic time capsule. Crafting a new kitchen: Pro tips for design and cost cutting 2020-12-30T05:00:00Z This device uses radar waves to probe underground geologic features. NASA’s Mars rover, Perseverance, aims for dicey landing to search for ancient life 2021-02-16T05:00:00Z The faster a planet loses its internal heat—which comes from its initial fiery formation, as well as thermal energy from radioactive decay—the sooner the planet’s geologic activity will cease. NASA Ends Efforts to Deploy Mars InSight's 'Mole' 2021-01-20T05:00:00Z A swarm of earthquakes did precede Steamboat’s activation, but such tremors failed to shake the ground with enough vigor to rearrange the geologic plumbing below ground and change the geyser’s behavior. The Cold Case of What’s Heating Up Yellowstone’s Steamboat Geyser 2021-01-06T05:00:00Z As organisms die, decomposition is hindered, usually due to rapid burial, and the chemical energy within the organisms’ tissues is added to surrounding geologic materials. An Introduction to Geology 2017-01-01T00:00:00Z A lunar penetrating radar will allow scientists to discern disparate layers of rock down to a depth of hundreds of meters, revealing the local geologic history. China's new moon mission returns the first lunar samples since 1976 2020-12-16T05:00:00Z This device uses radar waves to probe underground geologic features. NASA’s Mars rover, Perseverance, aims for dicey landing to search for ancient life 2021-02-16T05:00:00Z After millions of years of exposure to geologic processes such as crushing and weathering, the fossils we find are most often distorted and incomplete elements. The Real Dilophosaurus Would Have Eaten the Jurassic Park Version for Breakfast 2020-12-15T05:00:00Z By recycling carbon over geologic time, plate tectonics regulates the carbon dioxide in the atmosphere. Stellar Smashups May Fuel Planetary Habitability, Study Suggests 2020-11-17T05:00:00Z Geologists often state that “the present is the key to the past,” meaning they can understand ancient rocks by studying modern geologic processes. An Introduction to Geology 2017-01-01T00:00:00Z Already more than halfway to Mars, NASA’s Perseverance rover will hunt for the best geologic samples, after landing in February. Report: NASA needs more time, money to bring back Mars rocks 2020-11-10T05:00:00Z This device uses radar waves to probe underground geologic features. NASA’s Mars rover, Perseverance, aims for dicey landing to search for ancient life 2021-02-16T05:00:00Z We had spent this hot June day in 2014 hiking up and down the badlands to measure the rock beds and fill our backpacks with geologic samples. The Real Dilophosaurus Would Have Eaten the Jurassic Park Version for Breakfast 2020-12-15T05:00:00Z This geologic “dynamo” depends on how much radiogenic heat is in the mantle. Stellar Smashups May Fuel Planetary Habitability, Study Suggests 2020-11-17T05:00:00Z Darwin used uniformitarianism and deep geologic time to develop his initial ideas about evolution. An Introduction to Geology 2017-01-01T00:00:00Z Although the practice of mapping geologic layers had begun in the mid-17th century, the science of how strata formed was still nascent. Early Maps of Geologic Strata, an Oliver Sacks Documentary and a New Science Podcast 2020-11-07T05:00:00Z Dr. Beaman said it happened as the seabed receded in step with Australia’s rocky footings moving downward over geologic time in a process known as continental drift. A Pinnacle of Coral Is Discovered in Australia’s Great Barrier Reef 2020-10-30T04:00:00Z Paved surfaces end miles from the rock outcrop, so we drive on overgrown rutted two-tracks that cross the loose sandy dune fields that show up on our geologic maps as “QAL”—Quaternary alluvium. The Real Dilophosaurus Would Have Eaten the Jurassic Park Version for Breakfast 2020-12-15T05:00:00Z Though the geologic mechanisms are complex, the study showed that the relatively simple process of melting a solid in a liquid produced strikingly similar spikes. Melting Candy Gives Mathematicians Insight into How Some Landscapes Form 2020-10-16T04:00:00Z Plate tectonics is a unifying theory; it explains nearly all of the major geologic processes on Earth. An Introduction to Geology 2017-01-01T00:00:00Z Use the Friends of the Columbia Gorge site to find a hike appropriate to your skill level and interests, whether you want to enjoy peak views, waterfalls, or Ice-age era geologic formations. Discover Washingon: Outdoor fun in the Columbia Gorge | Provided by Western Washington Toyota Dealers 2020-10-15T04:00:00Z “This is going to be an important case study for how to approach the use of fragile geologic features,” he says. Precarious rocks help refine earthquake hazard in California 2020-10-01T04:00:00Z Any persons wishing to conduct geologic investigations on the Navajo Nation must first apply for and receive a permit from the Navajo Nation Minerals Department, P.O. The Real Dilophosaurus Would Have Eaten the Jurassic Park Version for Breakfast 2020-12-15T05:00:00Z “It will be literally geologic time before we see regulation of most of them.” Why dangerous ‘forever chemicals’ are allowed in US drinking water 2020-09-24T04:00:00Z Sandstone that contains feldspar, which weathers more quickly than quartz, is useful for analyzing the local geologic history. An Introduction to Geology 2017-01-01T00:00:00Z Instead the spacecraft would focus on radar scanning to help ascertain the planet’s geologic history. Is There Life on Venus? These Missions Could Find It 2020-09-23T04:00:00Z If you counted the sprawl up the mountain, 40,000 people had been living atop a geologic chimney. Opinion | California, the Most Calamitous Place on Earth 2020-09-18T04:00:00Z As paleontologists, we work to understand the life entombed in those rocks, and we use lines of geologic and biological evidence preserved within them to reconstruct the environments of deep time. The Real Dilophosaurus Would Have Eaten the Jurassic Park Version for Breakfast 2020-12-15T05:00:00Z Some researchers question this hypothesis, and they suggest instead that the gas could result from unexplained atmospheric or geologic processes on a planet that remains mysterious. Life on Venus? Astronomers See a Signal in Its Clouds 2020-09-14T04:00:00Z For example, in the Grand Canyon, rock strata of the same geologic age include many different depositional environments: beach sand, tidal flat silt, offshore mud, and farther offshore limestone. An Introduction to Geology 2017-01-01T00:00:00Z Spouting rock, another unique geologic feature located above the lake, was also running clear as ever, she said. The ‘Hanging Lake miracle’: Fire spares popular destination 2020-08-29T04:00:00Z Over time, many mud deposits hardened into mudrock, the most abundant rock in the geologic record, accounting for roughly half of all sedimentary formations. Five charts that will change everything you know about mud 2020-08-21T04:00:00Z As a result, scientists must “rely on the geologic formations that are around or adjacent to the fossils” to calculate their age, Gibson explains. How Do Scientists Determine the Ages of Human Ancestors, Fossilized Dinosaurs and Other Organisms? 2020-08-04T04:00:00Z Plant speciation accelerated again about 15 million years ago, when geologic evidence indicates monsoons intensified, reshaping the landscape. Many beloved garden flowers originated in this mountain hot spot—the oldest of its kind on Earth 2020-07-30T04:00:00Z Index fossils, fossilized life forms specific to a particular environment and/or geologic time period, are an example of biological facies. An Introduction to Geology 2017-01-01T00:00:00Z SuperCam uses laser-induced breakdown spectroscopy to study mineral composition, hardness and texture of Martian rocks and soils and will search for organic compounds related to Mars' geologic past. How is the Mars Perseverance rover getting to the Red Planet? 2020-07-28T04:00:00Z Indeed, recent advances in earthquake prediction technology — such as those that predicted the increasing likelihood of a large Southern California quake — derive from computer modeling using seismic records and geologic models. A study that links solar activity to earthquakes is sending shockwaves through the science world 2020-07-21T04:00:00Z But most fossil geologic methane making its way to the atmosphere comes from fossil fuels we extract, transport or burn. Methane Is on an Alarming Upward Trend 2020-07-15T04:00:00Z For instance, both the orbiter and the rover are equipped with a ground-penetrating radar to chart geologic layers under the surface. Chinese Spacecraft Poised for First Mars Mission 2020-07-15T04:00:00Z The horizontal assemblage and vertical distribution of fossils are particularly useful for studying species evolution because transgression, deposition, burial, and compaction processes happen over a considerable geologic time range. An Introduction to Geology 2017-01-01T00:00:00Z But, even though they eject huge amounts of material, there are very few documented super-eruptions in the geologic record. Geologists find evidence of two new supervolcano eruptions at Yellowstone 2020-07-12T04:00:00Z The region was mostly unexplored and uncharted until a recent expedition searched its dark waters, uncovering an abundance of life, weird geologic features and spectacular deep corals. The Great Wonders Beyond the Great Reef 2020-06-26T04:00:00Z Hud thinks evolution would then have gradually produced the current genetic system over long stretches of geologic time. The First Organism on Earth May Have Been a Genetic Hybrid 2020-06-22T04:00:00Z In contrast, Brassard and Cloutier had recorded the exact stratigraphic location of the fossil they found: 90 meters above the lowermost layers of a distinctive geologic unit known as the Escuminac Formation. How a 380-Million-Year-Old Fish Gave Us Fingers 2020-06-17T04:00:00Z Fossil assemblages that show evolutionary changes greatly enhance our interpretation of Earth’s ancient history by illustrating the correlation between stratigraphic sequence and geologic time scale. An Introduction to Geology 2017-01-01T00:00:00Z Roughly 445 million years ago, around 85 percent of all marine species disappeared in a geologic flash known as the Late Ordovician mass extinction. Familiar Culprit May Have Caused Mysterious Mass Extinction 2020-06-10T04:00:00Z Below Atencio’s grandma’s land and much of north-west New Mexico sits the San Juan Basin, a 75m-year-old geologic formation that is a major natural gas and oil field. ‘Their greed is gonna kill us’: Indian Country fights against more fracking 2020-06-10T04:00:00Z Among the new measures in the proposed rule are monitoring requirements for projects to demonstrate durable geologic storage of CO2 injected underground, standards for measuring utilization of carbon and rules for credit recapture. U.S. Treasury unveils rules for carbon capture tax credits 2020-05-29T04:00:00Z Still, the geologic and fossil evidence they did find allowed them to begin to reconstruct the animal's environment, a channel that fed into an estuary. How a 380-Million-Year-Old Fish Gave Us Fingers 2020-06-17T04:00:00Z Many different styles of metamorphic facies are recognized, tied to different geologic and tectonic processes. An Introduction to Geology 2017-01-01T00:00:00Z The climate is changing “at a rate that’s unprecedented in geologic history,” he said. In fast-warming Minnesota, scientists are trying to plant forests of the future On a table inside the magnetically shielded lab of Roger Fu, a planetary scientist at Harvard University, sits a modest contraption that is telling profound stories about the geologic past. Diamond microscope reveals slow crawl of Earth’s ancient crust 2020-04-22T04:00:00Z A helicopter-mounted instrument sends electromagnetic signals into the ground, measuring the electrical properties of buried sediment to create 3D maps of geologic formations that are as much as 300 meters deep. Droughts exposed California’s thirst for groundwater. Now, the state hopes to refill its aquifers 2020-04-16T04:00:00Z Do you offer tips on where to buy pickaxes and how to read geologic maps? Review | Upending retail with razors, lipstick and mattresses 2020-03-26T04:00:00Z The geologic time scale and basic outline of Earth’s history were worked out long before we had any scientific means of assigning numerical age units, like years, to events of Earth history. An Introduction to Geology 2017-01-01T00:00:00Z “But the geologic record shows us this may be an exception, rather than the rule.” Ancient warming threw this crucial Atlantic current into chaos. It could happen again 2020-03-26T04:00:00Z Its Caloris Basin, a 950-mile-long impact crater, lies on the exact opposite side of the world, or antipode, to a geologic pandemonium of shattered rock and maddeningly undulating topography. Collision on One Side of Pluto Ripped Up Terrain on the Other, Study Suggests 2020-03-26T04:00:00Z They will traverse the lunar or Martian surface for decades, continuously learning about the topography, seismographic activity and distribution of geologic strata in bulk and in detail. Do We Really Need to Send Humans into Space? 2020-03-06T05:00:00Z “We oftentimes say that impact cratering is the dominant geologic process on the moon and elsewhere in the solar system, for that matter. And here is a classic example that illustrates that,” Dr. Kring said. China’s Rover Finds Layers of Surprise Under Moon’s Far Side 2020-02-26T05:00:00Z The geologic time scale was completely worked out in the 19th Century using these principles without knowing any actual numeric ages for the events. An Introduction to Geology 2017-01-01T00:00:00Z But due to geologic fate, mining waste is something British Columbia may share in profusion with us in Washington, as well as Alaska, Idaho and Montana. Washington’s rivers, salmon and orcas need protection from Canadian mines 2020-02-25T05:00:00Z In addition to geologic methane seeps and activity from the fossil fuel industry, methane is also produced by biological sources, like livestock, wetlands and thawing permafrost. Methane Emissions from Oil and Gas May Be Significantly Underestimated 2020-02-21T05:00:00Z They estimate annual geologic methane emissions at about 1.6 million tons, dramatically lower than recent estimates of between 30 million and 60 million tons per year. Only humans can create climate-altering methane burns, new studies suggest 2020-02-20T05:00:00Z Most sites that define measures of geologic time are in Europe, so the Japanese site is an outlier in the geological world. Scientists just named a new geological age: the Chibanian 2020-02-14T05:00:00Z With a combination of relative and absolute dating, the history of geological events, age of Earth, and a geologic time scale have been determined with considerable accuracy. An Introduction to Geology 2017-01-01T00:00:00Z Right now, this is just another Monday in geologic time. Cracks in the Caribbean: “The Building Was Shaking Like Paper” 2020-02-01T05:00:00Z In the geologic equivalent of a murder mystery, which calamity actually did the deed is a debate that stretches back decades. Meteorite or Volcano? New Clues to the Dinosaurs’ Demise 2020-01-16T05:00:00Z An asteroid strike is one of the most violent geologic events. The world’s oldest asteroid strike in Western Australia may have triggered a global thaw 2020-01-21T05:00:00Z There I am, with a cap gun and cowboy hat on Christmas morning some geologic age ago. “The Ladder” 2020-01-13T05:00:00Z The geologic time scale is continuous, although the rock record may be broken because rocks representing certain time periods may be missing. An Introduction to Geology 2017-01-01T00:00:00Z The tour explores a canyon passageway and discusses a 19th century saltpeter mining operation and the cave’s geologic origins. Mammoth Cave offers free tours on Martin Luther King Jr. Day 2020-01-13T05:00:00Z Some grieve for lost futures, or for innocent animals that had the bad luck to exist at this particular moment in geologic time. An artist set out to paint climate change. She ended up on a journey through grief 2020-01-11T05:00:00Z In geologic time, this was practically yesterday: less than ten thousand years ago. This Was the Decade We Knew We Were Right 2019-12-30T05:00:00Z The geologic record goes back billions of years – 4.54 billion, to be exact – to the oldest minerals on Earth. Should the age of humans have a geological name? 2019-11-11T05:00:00Z Principle of Fossil Succession: Evolution has produced a succession of unique fossils that correlate to the units of the geologic time scale. An Introduction to Geology 2017-01-01T00:00:00Z Now that he’s in the program and participating in his passion for geologic research, Louie is also considering graduate school for geology. Crash hasn’t stopped Missouri student from wanting to race 2019-11-08T05:00:00Z It then compared this time line of diversification against climate and geologic records to see if the passerine diversification trends correlated with events in Earth history, as predicted by some hypotheses. Solving the Mystery of Songbird Diversity 2019-11-07T05:00:00Z But the island was elevated during a period of geologic uplift, creating a 92-acre lake that today is surrounded by a ridge more than 130 feet high. A Lake With Stingless Jellyfish and Hints of Hotter Seas 2019-11-04T05:00:00Z We dominate our environment so strongly that some scientists began using the term Anthropocene to describe our current geologic epoch: the age of humans. Should the age of humans have a geological name? 2019-11-11T05:00:00Z Relative time allows scientists to tell the story of Earth events, but does not provide specific numeric ages, and thus, the rate at which geologic processes operate. An Introduction to Geology 2017-01-01T00:00:00Z He is currently enrolled in 21 credit hours a week at school on top of his geologic research. Crash hasn’t stopped Missouri student from wanting to race 2019-11-08T05:00:00Z A geologic landmark like a valley, river or canyon will work. How do wildfires get their names? 2019-10-31T04:00:00Z This is one of the most distressing things about being alive today: we are witnessing geologic time collapse on a human scale. How to Mourn a Glacier 2019-10-20T04:00:00Z While it is not yet an official geologic epoch, progress towards that goal is underway. Should the age of humans have a geological name? 2019-11-11T05:00:00Z Primary sedimentary minerals containing radioactive isotopes like 40K has provided dates for important geologic events. An Introduction to Geology 2017-01-01T00:00:00Z Nestled into the northern foothills of the San Gabriel mountain range, this park is blessed with white sandstone strata, pushed skyward by the geologic activity of the San Andreas fault and other nearby fault lines. Ready to go beyond your climbing gym? Meet Southern California's rock stars 2019-10-12T04:00:00Z Wiemann's office, down the hall, is littered with specimens from many geologic periods and across the tree of life, each in its carefully labeled box. Warm-blooded velociraptors? Fossilized proteins unravel dinosaur mysteries 2019-10-08T04:00:00Z It’s a vivid a reminder of the dichotomy between geologic and human time. Opinion: Don't move the mammoths at La Brea Tar Pits 2019-09-30T04:00:00Z The geologic record will always be recording, whether or not we want it to. Should the age of humans have a geological name? 2019-11-11T05:00:00Z Thumbnail: Spider Rock, within Canyon de Chelly National Monument, not only has a long human history with the Diné tribe but also has a long geologic history. An Introduction to Geology 2017-01-01T00:00:00Z These, of course, are global averages; along certain coasts, owing to sinking lands from human development, as well as other geologic causes, sea-level rise will be higher. How Oceans Rise and Die on a Warming Planet 2019-09-26T04:00:00Z It explored a wonderful variety of geologic topics. Always Check the Copyright Date: Rocks, Rivers and the Changing Earth 2019-09-21T04:00:00Z “Just one day deposited about 425 feet of material — a rate that’s among the highest ever encountered in the geologic record.” Day the dinosaurs died: Asteroid impact site reveals devastation from power of 10 billion A-bombs 2019-09-10T04:00:00Z In geologic time, though, the chemical records of our existence are more likely to be found than physical remnants of human civilization. Should the age of humans have a geological name? 2019-11-11T05:00:00Z Few other fossil assemblages in the geologic record can offer more diversity and complexity than reefs. An Introduction to Geology 2017-01-01T00:00:00Z These survey leaders were formative to the history of geology, and their proposed geologic interpretations were written alongside recommendations for resource development and Native American removal. The Darker Side of John Wesley Powell 2019-09-09T04:00:00Z Hegen’s work circles around the concept of the Anthropocene, which is the proposed term for a new geologic era of human dominance over Earth’s geology and ecosystems. Tom Hegen’s aerial photography captures the human impact on natural landscapes 2019-09-06T04:00:00Z “The geologic record and our calculation seem to be very much in agreement until 58 million years ago.” Earth’s Orbital Shifts May Have Triggered Ancient Global Warming 2019-09-03T04:00:00Z Even Neptune’s large, frozen moon Triton churned with geysers and other surprising signs of geologic activity. The Solar System’s Loneliest Planets, Revisited 2019-08-22T04:00:00Z Some say that humans’ invention of agriculture would be recognized in geologic strata and that should be the starting point, around 12,000 years ago. An Introduction to Geology 2017-01-01T00:00:00Z Overlap between military imperialist ventures and geologic expeditions was quite clear, as the U.S. government was invested in mapping out these territories, identifying valuable resources and removing indigenous people from these lands. The Darker Side of John Wesley Powell 2019-09-09T04:00:00Z The area that the meteorite struck was the North Alpine foreland basin, a low point in Earth’s surface where a package of sediments was being deposited and, over geologic timescales, compressed into rock. Catastrophe by Mail 2019-08-09T04:00:00Z Among the country's geological gems are a large, scientifically significant dinosaur nest and a formal marker for a geologic age. India’s geologists champion law to protect fossil treasures 2019-08-04T04:00:00Z He began talking about a hub mined from deep geologic salt or rock formations that would be capable of storing millions of barrels of natural gas liquids. West Virginia bets big on plastics, and on backing the Trump administration 2019-08-05T04:00:00Z Either way, the idea is that alien geologists visiting Earth in the distant future would easily recognize the impact of humans on the Earth as the beginning of a new geologic period. An Introduction to Geology 2017-01-01T00:00:00Z Even for a company that is notorious for moving at a geologic pace, today’s update feels overdue. Twitter is writing new rules when it could just enforce existing ones 2019-07-10T04:00:00Z This theory was first suggested in 1785 by Scottish geologist James Hutton, who famously observed of the cyclic nature of geologic time: “We see no vestige of a beginning, no prospect of an end.” Catastrophe by Mail 2019-08-09T04:00:00Z After protracted slumber in Earth’s icy fringes, bacteria, moss and nematodes are awakening in a new geologic epoch. Ancient life awakens amid thawing ice caps and permafrost 2019-07-05T04:00:00Z The area features hiking trails and rock-climbing routes, towering red and white sandstone cliffs, sheltered canyons with waterfalls, Native American petroglyphs and geologic features. Red Rock Canyon crowding has land managers studying changes 2019-06-30T04:00:00Z Geological maps are two-dimensional representations of surface formations which are the surface expression of three-dimensional geologic structures in the subsurface. An Introduction to Geology 2017-01-01T00:00:00Z How do you turn the facts of planetary change at geologic magnitudes into a story with heart and urgency that will move voters? Perspective | A climate-focused presidential debate? Here’s what moderators should ask. 2019-06-27T04:00:00Z We have imperfect geologic records and imperfect computer models, which reflect our imperfect understanding of climate dynamics. Conservatives should change how they think about global warming. I did | Jerry Taylor 2019-06-10T04:00:00Z The start of the Anthropocene would be linked to the first atomic-bomb blasts, which littered the globe with radioactive debris that left its mark on the geologic record. Daily briefing: What abortion bans mean for public health 2019-05-21T04:00:00Z Carbon capture and sequestration at gas plants isn’t even a possibility in New England, which lacks the geologic formations needed to store carbon underground. Effort to Trade Gas for Hydropower in Northeast Meets Resistance 2019-05-22T04:00:00Z Geologists use geologic maps to represent where geologic formations, faults, folds, and inclined rock units are. An Introduction to Geology 2017-01-01T00:00:00Z The “Vit Plant” will treat tank waste, turning it into a glasslike substance similar to obsidian, which must then be stored on-site until ultimate disposal in a deep geologic facility. Hanford cleanup’s frustrating, yet astonishing, achievements 2019-05-10T04:00:00Z As Salon reported in November 2018, the two-year mission is partly geologic, as its tools will help understand Mars' crust and mantle. NASA lander detects an earthquake on Mars 2019-04-24T04:00:00Z “It is a geologic feature, it is its own mountain.” King County’s landfill will get bigger, despite concerns over the ‘monolithic pile of garbage’ 2019-04-24T04:00:00Z “We’re always speaking in geologic time, which is thousands of years or hundreds of thousands of years,” Wyoming State Geologist Erin Campbell said. Scientists release most detailed map of Teton quake fault 2019-04-05T04:00:00Z The first one or more letters are uppercase and represent the geologic time period of the formation. An Introduction to Geology 2017-01-01T00:00:00Z “We’re always speaking in geologic time, which is thousands of years or hundreds of thousands of years,” Wyoming State Geologist Erin Campbell said. Scientists release most detailed map of Teton quake fault 2019-04-05T04:00:00Z In the geologic layer just above the fossil deposit, ferns dominate, the signs of a recovering ecosystem. Fossils show worldwide catastrophe on the day the dinosaurs died 2019-03-29T04:00:00Z Next, we'll explore regions at risk, determine the geologic factors that signal potential volcanic tsunami hazards, and then we'll investigate what an effective Tsunami Early Warning System that includes volcanically-generated tsunamis might look like. The Underappreciated Threat of Volcanic Tsunamis 2019-03-24T04:00:00Z It was the National Academy of Sciences in the 1950s that first recommended disposing of atomic waste in deep geologic formations. First-of-its-kind US nuclear waste dump marks 20 years 2019-03-23T04:00:00Z A confining layer is a layer of low permeability geologic material that restricts the flow of water to or from the aquifer. An Introduction to Geology 2017-01-01T00:00:00Z Species that lived a million or so years apart may look like neighbors because we don’t get the geologic resolution to specify who is living with whom. There are More Dinosaurs to Discover from the Time of T. rex 2019-03-16T04:00:00Z “It’s the greatest fight in human history, one whose outcome will reverberate for geologic time, and it has to happen right now,” he said. The Other Kind of Climate Denialism 2019-03-06T05:00:00Z The movement of material inside the planet generates heat, warming the world’s interior and potentially powering volcanic eruptions and other geologic phenomena. Tilted Exoplanets May Explain Decade-Old Astronomical Mystery 2019-03-04T05:00:00Z For today, let me present you with a set of books and documentaries that will help you explore one of the most remarkable geologic sites on Earth. Happy Centennial, Grand Canyon! 2019-03-03T05:00:00Z Lagoons and estuaries are certainly transitional between terrestrial and marine geologic environments, where littoral, lacustrine, and fluvial processes can overlap. An Introduction to Geology 2017-01-01T00:00:00Z There are a few gaps—what geologists call unconformities, or time periods when the record of geologic history is missing. The First Time I Saw the Grand Canyon 2019-02-26T05:00:00Z The Proterozoic—the geologic eon that preceded the Cambrian period and spanned the time from the appearance of oxygen in Earth’s atmosphere to the emergence of complex life—is itself nearly two billion years long. Did Crawling Critters Leave These Cracks? The Answer Could Rewrite Evolutionary History 2019-02-26T05:00:00Z By looking at the soil and air composition at different sites on Titan, scientists could identify any geologic features that could help explain the mystery of methane. Could a Space Helicopter Find Life on Saturn's Moon Titan? 2019-02-22T05:00:00Z But the key finding was that the impact date fell in one of those peaceful moments of geologic time, not right before any of the pulses. The Real Dino Killer: A One–Two Punch 2019-02-21T05:00:00Z Studying geologic time, also known as deep time, can help us overcome a perspective of Earth that is limited to our short lifetimes. An Introduction to Geology 2017-01-01T00:00:00Z After all, the entire geologic period was thousands of years long. Today’s Earth looks a lot like it did 115,000 years ago. All we’re missing is massive sea level rise. 2019-02-06T05:00:00Z “It is a very exciting find, and hopefully future fossil and geologic evidence will place it in a better context,” she says. Did Crawling Critters Leave These Cracks? The Answer Could Rewrite Evolutionary History 2019-02-26T05:00:00Z The surge of elation that swept through the science team as researchers realized what they’d landed on: layers of exposed bedrock that would reveal clues about Mars’s geologic history stretching back billions of years. Opportunity, NASA’s record-setting Mars rover, is declared dead after 15 years 2019-02-13T05:00:00Z The rovers’ greatest gift, according to Squyres, was providing a geologic record at two distinct places where water once flowed on Mars, and describing the conditions there that may have supported possible ancient life. NASA about to pull plug on Mars rover, silent for 8 months 2019-02-12T05:00:00Z Compared to the geologic scale, the human lifespan is very short, and we struggle to comprehend the depth of geologic time and slowness of geologic processes. An Introduction to Geology 2017-01-01T00:00:00Z The geologic mystery of the canyon is how the south-trending Colorado River made a sudden turn westward to carve its way, cross-grained, through four plateaus. Grand Canyon National Park turns 100: How a place once called "valueless" became grand 2019-02-09T05:00:00Z Drilling opponents even oppose the 3-D seismic work that SAExploration plans, which would involve sending vehicles on the refuge’s tundra and shooting loud sound waves into the ground to try to delineate geologic structures. Seismic surveys of U.S. Arctic refuge coastal plain delayed 2019-02-08T05:00:00Z |
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