| 单词 | geologic time |
| 例句 | 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 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 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 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 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 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’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 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 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 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 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 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 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 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 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 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 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 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 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 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 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 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 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 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 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 “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 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 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 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 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 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 An overall timeline of the Earth’s history is called the geologic time scale. Miller & Levine Biology 2018-01-01T00:00:00Z This sediment then is moved to land over geologic time by the uplifting of Earth’s surface. Environmental Biology 2018-09-06T00:00:00Z 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 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 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 The geologic time scale is based on both relative and absolute dating. Miller & Levine Biology 2018-01-01T00:00:00Z Over geologic time, the calcium carbonate forms limestone, which comprises the largest carbon reservoir on Earth. Environmental Biology 2018-09-06T00:00:00Z 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 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 In fact, most of the geologic time ranges are mapped to fossil assemblages. An Introduction to Geology 2017-01-01T00:00:00Z The major divisions of the geologic time scale are eons, eras, and periods. Miller & Levine Biology 2018-01-01T00:00:00Z 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 “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 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 figure of this geologic time scale shows the names of the units and subunits. An Introduction to Geology 2017-01-01T00:00:00Z 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 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 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 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 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 “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 “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 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 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 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 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 “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 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 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 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 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 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 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 Darwin used uniformitarianism and deep geologic time to develop his initial ideas about evolution. An Introduction to Geology 2017-01-01T00:00:00Z 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 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 “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 “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 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 “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 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 It was, he said, a reprieve from writing academic papers and thinking about physics — while at the same time, offering a bit of perspective in geologic time. Riccardo Levi-Setti, Holocaust survivor who uncovered trilobites and subatomic particles, dies at 91 2018-11-20T05:00:00Z We urgently need people to see that we are embedded in geologic time. How thinking like a geologist could help us fight climate change 2018-10-23T04:00:00Z 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 Things aren’t looking great for our planet but let’s face it, I’m not living on geologic time. Meet the 'climate refugees' who already had to leave their homes 2018-09-24T04:00:00Z Our results provide new insights into how this subduction zone, and possibly others, behaves over geologic time frames of millions of years. Where the Pacific Northwest's "Big One" Is More Likely to Strike 2018-08-05T04:00:00Z “They’re common for Kilauea on a geologic time scale, but in a human time scale it’s sort of a career event,” she said. Scientists defy 'force of nature' to unlock secrets of Hawaii volcano 2018-07-08T04:00:00Z So, what’s been altering Earth’s days over geologic time, and does this mean anything for solstices past and future? This Summer Solstice, Earth's Days Are Longer Than Ever 2018-06-20T04:00:00Z 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 Even as recently as 2001 — barely a moment ago in geologic time — scientists marveled at an 80-square-mile bulge of lava growing four miles underground near South Sister. Central Oregon in shadow of volcanoes deemed high priority 2018-05-10T04:00:00Z And if indeed some such culture arose on Earth in the murky depths of geologic time, how might scientists today discern signs of that incredible development? Could an Industrial Prehuman Civilization Have Existed on Earth Before Ours? 2018-04-23T04:00:00Z Some geologists and paleontologists say the Permian extinction occurred over 15 million years, but others say it lasted 20,000 years—a blink of an eye in the scheme of geologic time. Five New Fossil Forests Found in Antarctica 2018-03-16T04:00:00Z In subduction, one large section of the earth — a plate — slides slowly under another, as the earth’s surface recycles itself over geologic time. For Tsunami Forecasters, Speed Is Everything 2018-01-23T05:00:00Z 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 About 2.7 billion years ago, basalt lava flowed underwater near what’s now the state’s border with Canada; the lava hardened, and the creep of geologic time turned it into a bedrock of greenstone and granite. In Northern Minnesota, Two Economies Square Off: Mining vs. Wilderness 2017-10-12T04:00:00Z The first reason is that what humans consider “long” is meaningless in geologic time. Why the Mexico City Earthquake Shook Up Disaster Predictions 2017-09-21T04:00:00Z It's also comforting to think in geologic time and that the world is going to be here with or without us. 'Full Frontal' showrunner Jo Miller guides a hectic show and relaxes with post-apocalyptic novels 2017-09-15T04:00:00Z Last November, the Guardian environment columnist Bill McKibben made the grim prediction that the “damage from the US election would be measured in geologic time”. Support the Guardian's fearless reporting on climate change and the environment 2017-05-02T04:00:00Z 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 What Mr. Trump is trying to do to the planet’s climate will play out over geologic time as well. Opinion | The Planet Can’t Stand This Presidency 2017-04-21T04:00:00Z In an instant of geologic time, we heedlessly burned through our natural resources, while creating weapons of mass destruction that could do in the world hundreds of times over. Pulling the lever for doomsday: How Donald Trump changed everything 2016-12-07T05:00:00Z In geologic time, all this happened just the other day: the Death Valley that we see now did not begin to form until about three million years ago. Death Valley Is Alive 2016-11-06T04:00:00Z In January, the working group published a paper in the journal Science arguing that the Anthropocene is a "functionally and stratigraphically distinct" unit of geologic time. Nuclear bombs transformed the planet and set off the Age of Humans, geologists say 2016-08-29T04:00:00Z 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 There’s also a stop inside the state museum on a wall mural in the geologic time gallery. Capitol abuzz with Poke-Catchers 2016-07-16T04:00:00Z On a geologic time scale, camels practically disappeared from North America earlier this week. Could bringing back camels ‘rewild’ the American West? 2016-06-22T04:00:00Z It reminds me of geologic time and scale, two things that are inhumanly vast. These beautiful volcanic eruptions will blow your mind 2016-05-22T04:00:00Z Designating a new unit of geologic time is a big decision, and if it is approved, the Anthropocene epoch will be shorter than any other time frame in geology history. Nuclear bombs transformed the planet and set off the Age of Humans, geologists say 2016-08-29T04:00:00Z 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 Only a few hundred years ago - not even a blink in geologic time - every drop of oil was in the ground. Keeping My Fossil Fuel in the Ground 2016-03-29T04:00:00Z Vigorous debate continues about whether this warrants recognition as a new geologic time unit known as the Anthropocene. The Anthropocene is functionally and stratigraphically distinct from the Holocene | Science 2016-01-07T05:00:00Z Even long-term climate cycles are short relative to geologic time, where “we’re talking about hundreds of thousands to millions of years for plate tectonics,” Olive says. Climate cycles didn’t shape ocean’s abyssal hills 2015-10-15T04:00:00Z However, in the middle of the Capitanian strata, brachiopod diversity fell precipitously: 87% of the species vanished in a few tens of thousands of years, a mere blip on the geologic time scale. New mass extinction event proposed by geologists 2015-04-21T04:00:00Z 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 Have humans so fundamentally and irreversibly changed the planet that it warrants a new and official notch on the geologic time spiral? You Are An Epoch: Defining the Anthropocene 2015-03-11T04:00:00Z Deep Borehole Disposal uses a combination of the natural properties of deep crustal rocks plus engineered barriers like asphalt, bentonite and concrete to isolate waste for geologic time. Can't We Just Throw Our Nuclear Waste Down A Deep Hole? 2015-03-05T05:00:00Z In the long run of geologic time, the Holocene, or "entirely new," is already special, the only summery span accorded its own epoch between periods of an icier planet. Nuclear Blasts May Prove Best Marker of Humanity's Geologic Record [In Photos] 2015-02-10T05:00:00Z He said while there's no doubt humans are dramatically changing the planet, creating a new geologic time period requires detailed scientific records, mostly based on what is in rocks. Anthropocene: Welcome to the 'Age of Humans' 2014-10-17T04:00:00Z 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 But defining a geologic time period requires a sufficiently large, clear and distinctive set of geologic characteristics to be useful as a global geologic boundary and that will also survive throughout geologic time. The Anthropocene Part 1: Tracking Human-Induced Catastrophe On A Planetary Scale 2014-08-16T04:00:00Z In fact, over geologic time it probably helped to keep the planet’s atmospheric CO2 levels and its temperature from rising too high for life to survive. Ants May Boost CO2 Absorption Enough to Slow Global Warming 2014-08-12T04:00:00Z Deep time The geologic time scale—deep time in general, like the age of the universe itself—is perhaps one of the most difficult scientific concepts for the human mind to grasp. Nuclear Blasts May Prove Best Marker of Humanity's Geologic Record [In Photos] 2015-02-10T05:00:00Z The last time the oceans changed so dramatically, about 59 million years ago, during a geologic time known as the Paleocene-Eocene Thermal Maximum, the rate of change was 10 times slower than is occurring today. Marine industries at risk on both coasts as oceans acidify 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 The hole filled up fast in geologic time, so all the fossil life in it is about the same age. An Inside Look at an 18 Million-year-old Fossil Dig Site in Florida 2014-01-01T17:45:08.837Z One of the Curiosity’s most important objectives will be to help researchers understand how Mars transformed over the past 3.5 billion years of geologic time into a drier, less hospitable planet. Curiosity Gears Up to Zap Rocks in Huge Crater at Red Planet 2012-08-06T22:15:00.327Z Going back billions of years ago in geologic time is tough stuff, but Curiosity is well equipped to do this because of two of its most important qualities. Op-Ed Contributor: Boldly Opening a New Window Onto Mars 2012-08-03T13:24:47Z This theory is fitting, to the extent that cordwood building can seem to progress in geologic time. Cordwood Masonry Gains New Fans 2012-07-19T02:17:15Z 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 bay is a product of what is known as the Little Ice Age, a glacial period that came and went quickly -- between the 16th and 19th centuries -- as far as geologic time goes. Green Blog: Along a Verdant Shore, a Vision of Past, Present and Future 2012-07-11T13:15:59Z According to the model, vertical movement of underground fluids shouldn't be possible at all, or should happen over what scientists call "geologic time": thousands of years or longer. Are Fracking Wastewater Wells Poisoning the Ground Beneath Our Feet? 2012-06-21T17:45:00.210Z The problems are familiar by now: they include a planetary warming that, while slow on the scale of a human lifetime, is extremely rapid on a geologic time scale, the scientists said. Green Blog: Are We Nearing a Planetary Boundary? 2012-06-06T18:56:57Z Yes, it has a season that is best measured by the geologic time scale. Leading Off: The N.H.L. Playoffs Go Long - Leading Off 2012-04-13T14:22:31Z From 3,500 Ma to 542 Ma, or 88% of geologic time, the predominant life forms were single-celled organisms such as bacteria. An Introduction to Geology 2017-01-01T00:00:00Z Over geologic time, the peat deposits were subjected to high pressure and became coal, which is found in the area. Fossilized, 'Pompeii' Forest Discovered Under Ash 2012-02-21T22:45:03.877Z The climate in late geologic time was very different from that which prevails to-day. Encyclopaedia Britannica, 11th Edition, Volume 12, Slice 4 "Grasshopper" to "Greek Language" 2011-11-28T03:00:19.517Z When you look at salmon in geologic time, you come to see it maps the changes in the landscape, the evolution of mountain ranges. History of salmon dates back millions of years 2011-11-25T02:12:26Z It would not, however, be of importance during the long warm periods which form most of geologic time. Climatic Changes Their Nature and Causes 2011-10-28T02:00:24.840Z The demise of the dinosaurs and subsequent rise of mammals occurred around 65 Ma, or 1.5% of geologic time. An Introduction to Geology 2017-01-01T00:00:00Z In that event, some 56 million years ago, global temperatures rose 5 degrees Celsius in the course of a few thousand years—a mere instant in geologic time. Climate Researchers Seek Global Warming Clues in the Arctic's Svalbard Archipelago [Slide Show] 2011-06-29T11:15:05.147Z All of those effects obliterated the original surface of the Earth over geologic time, leaving no trace of its original condition. JFK's 1961 Speech Launched Space Exploration to New Heights 2011-05-25T14:09:00Z There is a record of quakes in historical and geologic times preserved in sediments on faults or deposited by tsunamis, but it is not complete enough to address global seismicity trends. Quake Question #3: Could the Japan Quake Trigger Other Quakes Across the Globe? 2011-03-16T18:18:42Z There is absolutely no evidence, however, of any such change during geologic time. Climatic Changes Their Nature and Causes 2011-10-28T02:00:24.840Z The geologic time scale, geologic time, and geologic history are discussed in more detail in chapters 7 and 8. An Introduction to Geology 2017-01-01T00:00:00Z Of the general paleontological facts, of the general aspects of the various faunas in various parts of the world, during some roughly indicated period of geologic time, we may be reasonably sure. A Book-Lover's Holidays in the Open Mr. Darwin would answer, that he relies upon the vast periods of geologic time to produce alterations such as we cannot possibly attempt within the few years at our disposal. The Old Riddle and the Newest Answer Geologic Ages Represented in the United States—Estimate of geologic time. Woman's Club Work and Programs First Aid to Club Women This book sets forth what appear to be the chief reasons for climatic variations during historic and geologic times. Climatic Changes Their Nature and Causes 2011-10-28T02:00:24.840Z Here we seem to breathe another air, though probably this code differs no more from the animal standards of conduct than our physical atmosphere differs from that of early geologic time. Ways of Nature Has the course of life up through geologic time been in any way like this? Under the Maples Now had it been proved that throughout geologic time, each genus lived but for a short period—a period measured by a single group of strata—something might be inferred. Essays: Scientific, Political, & Speculative, Vol. I The evolutionary process is seen to take the form of increasing density through the progressive expulsion of volatilizable matters in the course of geologic time. The Economic Aspect of Geology Even in the Archeozoic the rocks testify to a climate seemingly not greatly different from that of the average of geologic time. Climatic Changes Their Nature and Causes 2011-10-28T02:00:24.840Z This principle of variation was no doubt much more active back in geologic time, during the early history of animal life upon the globe, than it is in this late age. Ways of Nature The record of the rocks reveals to us the relation of species, and their succession in geologic time, but gives no hint of their origin. Under the Maples The solution of the problem would aid in establishing a relation between the periods and ages of geologic time and the centuries of human chronology. The Greatest Highway in the World Historical, Industrial and Descriptive Information of the Towns, Cities and Country Passed Through Between New York and Chicago Via the New York Central Lines. Based on the Encyclopaedia Britannica. Meantime the traveller has speeded south under the Hurricane Cliff, which is the ragged edge left when all the land west of it sank two thousand feet during some geologic time long past. The Book of the National Parks Throughout most of geologic time, as we shall see again and again, the climate of the earth has been milder than now. Climatic Changes Their Nature and Causes 2011-10-28T02:00:24.840Z We can trace the steps by which its singularly strong limbs and feet, on which rests its value to man, were formed in the great laboratory of geologic time. Domesticated Animals Their Relation to Man and to his Advancement in Civilization There is no variation during geologic time of these primordial living organisms. Under the Maples In a broad way these agencies of elevation and of erosion have caused in their age-long struggle an alternation of periods of overflow and periods of continental emergence during geologic time. Dinosaurs With Special Reference to the American Museum Collections But for the lapse of geologic time in which man has so far lived, Yellowstone has cornered the world's geyser market. The Book of the National Parks What takes place among our domestic animals of a summer day is by no means a safe guide as to what befell their ancestors in the abysses of geologic time. The Last Harvest There is, however, one condition which will operate to unduly diminish our estimate of geologic time, and it is a condition which may possibly obtain at the present time. The Birth-Time of the World and Other Scientific Essays Rock begat rock, undoubtedly, and the aerial forces played the chief part, but the origin of each kind is hidden in the abyss of geologic time, as is that of the animal species. Under the Maples It is true that palæontology gives direct testimony about the evolutionary succession of animals in geologic time. The Doctrine of Evolution Its Basis and Its Scope Upon the precession of the equinoxes they erect a fabric of retrograde chronology, and set a clock to geologic time. Lippincott's Magazine of Popular Literature and Science Volume 17, No. 097, January, 1876 In the yesterday of geologic time, humanity was not. The Last Harvest With the lapse of geologic time the upper grades of animal intelligence have doubtless been raised higher and higher through natural selection. The Meaning of Infancy Back in geologic time we had a ruminant with four horns, two on the nose and two on the crown, and they were real, permanent, bony growths. Under the Maples No less interesting in their own way are the remains of other hoofed forms that lead down to the elephants of to-day and to the mammoth and mastodon of relatively recent geologic times. The Doctrine of Evolution Its Basis and Its Scope Following these general considerations, each great division of geologic time is successively taken up, commencing with the Azoic. The Atlantic Monthly, Volume 11, No. 66, April, 1863 To believe in the carnivorous reptiles of geologic times is hard for our imagination—they seem too much like mere museum specimens. Varieties of Religious Experience, a Study in Human Nature I knew something about those terrible creatures that in geologic times shook the primitive forests with their heavy tread; for a long time the thought of them disquieted me. The Story of a Child In our geologic time there is, in this circuit of the waters, more that favors life than hinders it, else, as I so often say, we should not be here. Under the Maples The proportion of extinct ordinal types of animals to the existing types, therefore, does not exceed seven per cent—a marvellously small proportion when we consider the vastness of geologic time. Lectures and Essays In the face of geologic time, man's appearance upon the earth as man, with a written history, is something that has just happened; it was in this morning's paper, we read of it at breakfast. Time and Change Escaping from the influences of personality, his imagination wrought back through eras of geologic time, held him in a vision of the infinitely remote, shrivelled into insignificance all but the one fact of inconceivable duration. Born in Exile Over geologic time spans, mineral grains are slowly destroyed by weak soil acids and clay is formed from the breakdown products. Gardening Without Irrigation: or without much, anyway These crude divisions would be of much value if, as in the case of geologic time, we had no exact reckoning of human history by years. The Elements of Geology For a long geologic time the land was low and swampy. The Bontoc Igorot His specialization upon physical lines seems to have ended far back in geologic time; his future specialization and development is evidently to be upon mental and spiritual lines. Time and Change Like an atom, like a breath of to-day, we were suddenly confronted by abysmal geologic time,—the eternities past and the eternities to come. Birds and Bees, Sharp Eyes and Other Papers The proportion of extinct ordinal types of animals to the existing types, therefore, does not exceed seven per cent.—a marvellously small proportion when we consider the vastness of geologic time. Time and Life In the embryonic stages of its growth the individual passes swiftly through the successive stages through which its ancestors evolved during the millions of years of geologic time. The Elements of Geology The sun set behind wooded mountains, long wave-lines raised far back in geologic time. Pioneers of the Old South: a chronicle of English colonial beginnings The geologists are agreed that the canyon is only of yesterday in geologic time,—the Middle Tertiary,—and yet behold the duration of that yesterday as here revealed, probably a million years or more! Time and Change They were found, he said, in numbers, on the sides of the hill hard by; a fact which would go to prove that this part of Japan has been making in later geologic time. Noto: an Unexplained Corner of Japan In them and through them something, some impulse, some force, has mounted and mounted through all the enormous lapse of geologic time. Time and Change The molten rock which has been driven from the earth's interior to within the crust or to the surface during geologic time must be reckoned in millions of cubic miles. The Elements of Geology We can sound the abysses of astronomic space easier than we can sound the abysses of geologic time. Time and Change Upon the background of geologic time our chronological time shows no more than a speck upon the sky. Time and Change One would fain arrive at some concrete belief or image of his line of descent in geologic time as he does in the historic period. Time and Change How did they escape the world-wild catastrophe of earlier geologic times? Time and Change Surely a long journey, stretching through immeasurable epochs of geologic time, and attended by vicissitudes of which we can form but feeble conceptions. Time and Change The creative energy seems to have worked in geologic time and in the geologic field just as it works here and now, in yonder vineyard or in yonder marsh,—blindly, experimentally, but persistently and successfully. Time and Change It was evidently formed by the whole top of the mountain having been blown out or else sunk down in recent geologic times. Time and Change I could not look out of the car windows without seeing the spectre of geologic time stalking across the hills and plains. Time and Change But in time, in geologic time, it all comes back. Time and Change These rapid changes are analogous to those which in the depths of geologic time have evolved the bird from the fish or the reptile, or the seal and the manatee from a fourfooted land animal. Time and Change But the question of hazard to the race of man in geologic time is quite a different one. Time and Change |
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