| 单词 | geochemistry |
| 例句 | He combines geochemistry with the fossil record to try to understand the Earth's climate history. Plants that survived dinosaur extinction pulled nitrogen from air 2023-11-16T05:00:00Z The return of carefully selected samples, such as ones weathered by geothermal vents, as well as sedimentary and aggregated rocks, will allow scientists on Earth to extensively examine their geochemistry and microscopic composition. Mars Sample-Return Missions Could Reduce Tensions with China on Earth 2023-10-03T04:00:00Z The Pasadena-based institute, with a 3% admission rate last year, boasts 46 Nobel laureates and cutting-edge research in such fields as earthquake engineering, behavioral genetics, geochemistry, quantum information and aerospace. Caltech's new admissions path: No calculus, chemistry, physics class requirements for some 2023-08-31T04:00:00Z “Imagine a shell like a thick book, where the animal has added one page after another as it grows,” says lead author Nasser Al-Qattan, a geochemistry professor at Kuwait University. Barnacles could help solve the mystery of Malaysian Airlines Flight 370 2023-08-23T04:00:00Z It’s estimated that a third of seagrass around the world has disappeared in the last few decades, according to Matthew Long, an associate scientist in marine chemistry and geochemistry at Woods Hole Oceanographic Institution. A Powerful Climate Solution Just Below the Ocean’s Surface 2023-05-24T04:00:00Z Goff and other researchers also look for microscopic marine organisms like diatoms and foraminifera, ancient DNA from marine life, changes to geochemistry, and, as in the Atacama, unexpected boulders. Ancient Tsunami Detectives Hunt for Long-Lost Cataclysms 2023-03-01T05:00:00Z Researchers combined 3D scanning and geochemistry with more traditional tools such as museum collections, field notes, photographs and archival materials. ‘Sea monster’ graveyard mystery solved? Fossils offer signs of 230-million-year-old migration. 2022-12-19T05:00:00Z Dr Stuart Gilfillan, a reader in geochemistry, who has worked at the university for 16 years, is one of the elected members of senate. University of Edinburgh apologises over payment backlog 2022-11-09T05:00:00Z The research, which blends the zoology and shell geochemistry with ocean drift modeling and geospatial statistics, still has a way to go before scientists can mark an “X” on a map of the Indian Ocean. Barnacles could help solve the mystery of Malaysian Airlines Flight 370 2023-08-23T04:00:00Z Once virtually unknown outside of geochemistry research, these metals, which include neodymium and praseodymium, as constituents of powerful magnets used in hard drives and computer speakers. Should humanity be "mining" e-waste landfills? Some chemists say so 2022-05-12T04:00:00Z Initially, the rock textures and geochemistry defied classification. What We Learned from the Perseverance Rover’s First Year on Mars 2022-02-17T05:00:00Z Such volcanoes produce explosive ash clouds when gas bubbles become pressurized because they cannot escape from sticky magmas beneath the ground, said Michael Stock, a professor of geochemistry at the University of Dublin in Ireland. This Galápagos Volcano Produced a ‘Mesmerizing’ River of Fire 2022-02-09T05:00:00Z Stewart thought back to when he studied geochemistry as a graduate student. To learn how COVID affects the ear, scientists turn to cadavers 2022-01-17T05:00:00Z "They did all of their geochemistry, they wrote up a lot of great reports, and they went on their way," says Temple. In Colorado, locals question a survey for critical minerals 2021-11-19T05:00:00Z Valentine, who’s a professor of geochemistry and microbiology at UC Santa Barbara, noted that the situation in California reminds him of the shallower waters off the Gulf of Mexico — where hundreds of aged platforms remain. California’s offshore oil rigs are decades old, and industry resists decommissioning them 2021-10-10T04:00:00Z Kenneth A. Farley, professor of geochemistry at the California Institute of Technology and the mission’s project scientist, said in an email. NASA’s Perseverance Rover Stashes First Mars Rock Sample 2021-09-07T04:00:00Z Yet such conditions and constituent chemicals do not exist to a sufficient degree on a rocky planet like Venus to explain its presence there through geochemistry. Phosphine gas, seen on Venus, is also produced by bacteria on Earth — but we don't know exactly how 2020-09-17T04:00:00Z It’s all part of my PhD research on marine geochemistry at the Alfred Wegener Institute for Polar and Marine Research in Bremerhaven, Germany. Transfixed by the glow of Arctic ice under starlight 2020-03-29T04:00:00Z He graduated from the University of Adelaide with a degree in geology in 1956 and received a doctorate in geology and geochemistry at Harvard University in 1963. Robin Brett, NASA scientist who studied ‘moon rocks,’ dies at 84 2019-10-24T04:00:00Z Urey’s continuing work on stable isotopes of other chemical elements, such as nitrogen and oxygen, led to important applications in biochemistry and geochemistry, including the pioneering use of isotopic labels to study metabolic pathways. From bomb to Moon: a Nobel laureate of principles 2019-10-13T04:00:00Z The levels of these isotopes vary with local geochemistry, and the women showed levels more similar to those found in eastern Germany and the Czech Republic. Four-thousand-year-old family trees show deep roots of social inequality 2019-10-09T04:00:00Z MOSAiC aims to help fill such gaps by documenting solar radiation levels, plankton populations, geochemistry, clouds, and other factors. Arctic researchers will lock this ship in ice for a year to study the changing polar region 2019-08-20T04:00:00Z Without evidence from craters for the impact flux to the Moon at that time, geochemistry is the only valid test of this idea. Low retention of impact material by the Moon 2019-07-09T04:00:00Z Several additional lines of evidence from geochemistry and geophysics support the magma ocean model, which is still being developed today. Apollo's Bounty: The Science of the Moon Rocks 2019-07-02T04:00:00Z In the late 1940s, Urey used his expertise in mass spectrometry to begin work in geochemistry, and then in planetary science. From bomb to Moon: a Nobel laureate of principles 2019-10-13T04:00:00Z Under the glow of a projector in a darkened classroom, two dozen researchers shared their latest findings on topics such as organic isotope geochemistry and peat deposits. The Anthropocene epoch: have we entered a new phase of planetary history? 2019-05-30T04:00:00Z “It seems completely superfluous to have another panel,” said Ms. Ekwurzel, who holds a Ph.D. in isotope geochemistry. Presidential Committee on Climate Security must be independent, skeptics say 2019-04-08T04:00:00Z And through the wonder of modern geochemistry, it's possible to date this material and even to tie it to the specific locations in Antarctica. Drilling climate history in 'Iceberg Alley' 2019-03-26T04:00:00Z It includes projects to collate soil geochemistry data with groundwater data sets into predictive maps for highly prospective mineral regions. Undercover Down Under: Miners study gum leaves, groundwater for new... 2019-03-06T05:00:00Z The authors present a comprehensive data set that includes an analysis of the layers, fossils and geochemistry within a known time frame. Ancient plants escaped the end-Permian mass extinction 2019-02-28T05:00:00Z Dr Dominic Papineau, an expert in geochemistry and early fossils from University College London who was not involved in the study, said the findings were consistent with the structures being fossils. 'Wiggly structures' in ancient rocks could be earliest trace of moving organism 2019-02-11T05:00:00Z Among the methods they used to identify and date the pitchstones was isotope geochemistry which measures the relative levels of isotopes in rock samples. Skye volcanic eruption 'changed climate' 2019-01-24T05:00:00Z The study’s use of geochemistry to understand long-term magmatic evolution, Dr. Kilburn said, “may help to improve our understanding of large calderas worldwide.” Campi Flegrei Volcano’s Ancient Cycle Seems to End in Large Eruption 2018-11-14T05:00:00Z Australia introduced the idea of digitally integrating information across geophysics, geochemistry, geology and tectonics, she says. Rocket crash, alcohol warnings and astronomy’s leaky pipeline 2018-10-16T04:00:00Z That’s because neither is measuring pollutants that may have dropped to the river bottom and are likely to linger in the sediment, said Avner Vengosh, a professor of geochemistry and water quality. Post-Florence coal ash tests at 1 site yet to raise alarms 2018-10-02T04:00:00Z Its supply of heat to the surface and its idiosyncratic geochemistry are generating an abundance of beautiful and freakish wonders, from lava-launching whirlwinds to plumes of potentially lethal acidic haze. Photo Gallery: How Kilauea--and other Volcanoes--Produce Amazing and Frightful Weather 2018-07-27T04:00:00Z Savin, S. & Epstein, S. The oxygen and hydrogen isotope geochemistry of ocean sediments and shales. Rapid emergence of subaerial landmasses and onset of a modern hydrologic cycle 2.5 billion years ago 2018-05-22T04:00:00Z On the way to allowing life to evolve, the rise of oxygen also transformed Earth’s rocks and thus fundamentally altered our planet’s geochemistry. Primeval Salt Shakes Up Ideas on How the Atmosphere Got Its Oxygen 2018-03-22T04:00:00Z Brocks and Butterfield debated the interpretation in the corridors of the Goldschmidt geochemistry conference in Paris this week, as others looked on. The algae that terraformed Earth - BBC News 2017-08-17T04:00:00Z Now a recent study may support the hypothesis that Earth’s geochemistry allowed these organisms to grow into large, diverse shapes. Exploring the Mysterious Life of One of Earth's First Giant Organisms 2017-08-08T04:00:00Z Still, Shank thinks, because the diversity between the two sites is so vast, it is likely geochemistry plays the largest role. Bizarro Life-Forms Inhabiting Deep-Sea Vents May Be at Risk 2017-08-04T04:00:00Z The researchers recreated this geochemistry in fermentation buckets in their laboratory. Wetland archaeological sites at risk - BBC News 2016-10-31T04:00:00Z The most exciting progress these days is happening in the interstices between those antiquated domains, in astrobiology or neurogenetics or geochemistry, and that is where the smart research grants are going, but not the Nobels. Bob Dylan Won. But in Science, the Times They Aren’t A-Changin’. 2016-10-31T04:00:00Z This is a fantastic challenge for geochemistry and microbiology. Deep-sea drilling expedition to look for life's limits in scalding environments 2016-09-07T04:00:00Z Alexander Halliday, a professor of geochemistry at the University of Oxford, testified at the House of Lords. Britain’s scientists are freaking out over Brexit 2016-07-28T04:00:00Z Then they monitored the pH, geochemistry, and other characteristics of the subsurface by taking samples from nearby wells. Underground injections turn carbon dioxide to stone 2016-06-10T04:00:00Z For example, assumptions about the repository's geochemistry or the likelihood of drilling into it can lead to underestimates of the risks. Policy: Reassess New Mexico's nuclear-waste repository 2016-01-12T05:00:00Z Avner Vengosh, a Duke University geochemistry professor who studies coal ash contamination, agreed that the available data does not yet conclusively link Duke Energy’s leaky pits to the tainted wells. Duke to provide water to NC residents with tainted wells 2015-05-13T04:00:00Z The finding also hints that such deep ground water may hold a previously hidden influence over the geochemistry and biological productivity of McMurdo Sound and the surrounding waters. Salty water lurks beneath Antarctica 2015-04-28T04:00:00Z There were plenty of presentations putting forward theories of Ceres' internal structure and geochemistry. Ceres: Possible plume hints at active world 2015-03-20T04:00:00Z The firm also funds research doctorates in geochemistry. Oxford to rule on coal investments 2015-03-15T04:00:00Z We make it an annual event in our house, especially since Judith worked as an actor before she got her PhD in geochemistry. Hollywood Versus Reality -- Nuclear Thrills In Blackhat 2015-02-20T05:00:00Z People need to understand geochemistry and atmospheric chemistry in order to do that. Chemists Pick New Leader For World’s Largest Science Society 2014-12-10T05:00:00Z He received a master’s degree in geology from the California Institute of Technology and a Ph.D. in geochemistry from Princeton in 1963. Noel W. Hinners, Voice for Scientific Research at NASA, Dies at 78 2014-09-11T04:00:00Z However, the result of his science courses was a shift in interest to geochemistry. Noel Hinners, a top NASA official, dies at 78 With the help of international collaborators, the authors plan to study the geochemistry of the rocks to understand how the oxygen content of ancient oceans changed over time — and how this affected animal evolution. Earliest skeletal animals were reef builders 2014-06-25T04:00:00Z It’s a drama etched in the geochemistry of a truly singular rock. In a Grain, a Glimpse of the Cosmos 2014-06-18T04:00:00Z "We're most interested to find clues as to the aqueous geochemistry which resulted in cementation of the sedimentary rocks," he told the BBC this week. Mars rover drills for rock sample 2014-05-06T16:59:47Z "We're hoping to do more geochemistry on these particular rocks to try and nail down even further what the source would have been," Huber said. Earth's Oldest and Biggest Crater Yields New Secrets 2014-04-29T22:00:00Z In June, Liping Qin will become the first person from China to be presented with the European Association of Geochemistry's Houtermans Award, which recognizes a single exceptional contribution to geochemistry by an early-career scientist. Turning point: Liping Qin 2014-04-02T17:20:47.541Z "Subtle differences in geochemistry that arose more than 100 million years ago are now affecting life on the mountain range," said Hahm. Growth Secret of the World’s Tallest Trees Uncovered 2014-02-11T22:13:00Z But these candidates fail on their dating or geochemistry, the researchers say. Mystery eruption traced to Indonesia 2013-09-30T19:59:37Z A 40-year quest to map Britain's geochemistry was celebrated on Tuesday. Map traces UK's elemental signature 2013-09-24T13:32:00Z But it is attracting interest and was bashed against the late veneer theory at length in a session last month at geochemistry's annual international symposium - the Goldschmidt Conference in Florence. Does gold come from outer space? 2013-09-19T01:26:09Z Measurement of the ratios of heavy and light isotopes of oxygen, once a limited area of geochemistry, eventually allowed the interpretation of prior climate change. [Editorial] A Perverted View of “Impact” 2013-06-13T17:55:08.953Z The university's department of earth sciences already accepts funding from Shell for research doctorates in geochemistry. Oxford alumni condemn choice of Shell to fund earth sciences lab 2013-05-08T18:29:22Z I began fretting about the samples, and speeding up the geochemistry. Scientist at Work Blog: Bidding Farewell to the Jewel of the Lotus 2012-11-28T12:35:19Z They found that the geochemistry of the artifact is a match for values known from fragments of the Chinga meteorite. Buddhist 'Iron Man' Found by Nazis Is from Space 2012-09-26T20:15:00.390Z "Carbon dioxide capture and storage is important because we depend on , and we will depend on fossil fuels for the next 50 to 100 years," said Juerg Matter, a professor of geochemistry at Columbia University. New Storage Projects Turns CO2 into Stone 2012-03-05T17:45:00.190Z “Physical and chemical measurements might establish whether the lake is fresh or salt water, whether it is normally or over pressured, and what other geochemistry may be apparent,” he wrote in an e-mail. Russians drill into previously untouched Lake Vostok below Antarctic glacier 2012-02-06T18:38:00Z The ESA rover will carry a drill and a suite of instruments for exobiology and geochemistry research. Sky Crane - how to land Curiosity on the surface of Mars 2011-11-29T04:15:21.007Z A mission to explore the surface and atmospheric geochemistry of Venus was the best hope of U.S. scientists wishing to return to Earth's sister planet for the first time in decades. NASA Aims to Grab Asteroid Dust in 2020 2011-05-25T22:39:19Z The most primitive asteroids contain geochemistry not observable in Earth rocks because they are constantly recycled. Space concepts enter competition 2011-02-26T23:02:07Z Employing off-the-shelf technology will produce numbers that aren't quite as precise as the "few hundredths of a part per trillion" accuracy produced by Scripps' existing instruments, said Scripps geochemistry professor Ray Weiss. Adding Greenhouse Gas Measurements to Weather Monitors 2011-01-12T16:15:05.597Z We have a great collection of material to work with, but instant gratification is not a characteristic of analytical geochemistry! Scientist at Work: Rocks, Zircon Zapping and a Big Shrimp 2011-01-07T21:02:35Z |
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