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Showing results for tags 'stable isotopes'.
Found 7 results
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Iron age sharks' teeth mystery from the City of David in Jerusalem
Oxytropidoceras posted a topic in Fossil News
The City of David in Jerusalem and the sharks' teeth mystery Eureka Alert, July 3, 2021 Phys.Org, July 4, 2021 SciTechDaily, July 3, 2021 The paper is: Tütken, T., Weber, M., Zohar, I., Helmy, H., Bourgon, N., Lernau, O., Jochum, K.P. and Sisma-Ventura, G., 2020. Strontium and oxygen isotope analyses reveal Late Cretaceous shark teeth in Iron Age strata in the Southern Levant. Frontiers in Ecology and Evolution, 8. Yours, Paul H.-
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- isreal
- southern levant
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First AMS radiocarbon date for the Mount Holly Mammoth, Vermont, USA.
Oxytropidoceras posted a topic in Fossil News
First Humans in New England May Have Shared the Landscape With Woolly Mammoths Science Daily article, March 4, 2021, Dartmouth College Science Tech Daily article, March 4, 2021, Dartmouth College The paper is: Nathaniel R. Kitchel, Jeremy M. Desilva. 2021, First AMS radiocarbon date and stable C:N isotope analysis for the Mount Holly Mammoth, Vermont, USA. Boreas, Yorus, Paul H. -
Earth's mountains disappeared for a billion years, and then life stopped evolving
Oxytropidoceras posted a topic in Fossil News
Earth's mountains disappeared for a billion years, and then life stopped evolving A dead supercontinent may be to blame By Brandon Specktor, Live Science Tang, M., Chu, X., Hao, J. and Shen, B., 2021. Orogenic quiescence in Earth’s middle age. Science, 371(6530), pp.728-731. Yorus, Paul H. -
New insight into the Great Dying, Permian mass extinction
Oxytropidoceras posted a topic in Fossil News
New insight into the Great Dying, University of Leeds, June 11, 2020 https://phys.org/news/2020-06-insight-great-dying.html The open access paper is: Jacopo Dal Corso, Benjamin J. W. Mills, Daoliang Chu, Robert J. Newton, Tamsin A. Mather, Wenchao Shu, Yuyang Wu, Jinnan Tong, and Paul B. Wignall (2020) Permo-Triassic boundary carbon and mercury cycling linked to terrestrial ecosystem collapse. Nature Communications 11, Article number: 2962 doi: https://doi.org/10.1038/s41467-020-16725-4 https://www.nature.com/articles/s41467-02- 2 replies
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- permian mass extinction
- great dying
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The Dinosaur-Killing Asteroid Acidified the Ocean in a Flash The Chicxulub event was as damaging to life in the oceans as it was to creatures on land, a study shows. New York Times https://www.nytimes.com/2019/10/21/science/chicxulub-asteroid-ocean-acid.html Tiny shell fossils reveal how ocean acidification can cause mass extinction By Julie Zaugg, CNN, October 22, 2019 https://www.cnn.com/2019/10/22/europe/ocean-acidification-asteroid-intl-hnk-scn/index.html New study underpins the idea of a sudden impact killing off dinosaurs and much
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- cretaceous–paleogene boundary
- paleocene
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Great Series of Lectures About Snowball Earth, Cryogenian, Including Its Paleobiology
Oxytropidoceras posted a topic in Fossil News
Belo are a great series of lectures (2016) that summarizes what is known and unknown about the Cryogenian. Earth Dynamics Research Group CCFS sponsored short course on Snowball Earth https://www.youtube.com/playlist?list=PLb5FFe99h_Lg_t5_67MG1OIKMjOPqFS4n Snowball Earth Lecture 1 - Snowball geology Earth Dynamics Research Group https://www.youtube.com/watch?v=RxFmcgjXtgI&t=0s&list=PLb5FFe99h_Lg_t5_67MG1OIKMjOPqFS4n&index=2 Snowball Earth Lecture 2 - Snowball climate dynamics Earth Dynamics Research Group https://www.-
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- snowball earth
- paleoclimatology
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Mammoth Tusks, Stable Isotopes, and Diet, Kikiakrorak River, Alaska
Oxytropidoceras posted a topic in Fossil News
Seeking clues by slicing 20,000-year-old mammoth tusks Ned Rozell, Alaska Dispatch News, September 3, 2017 https://www.adn.com/alaska-news/science/2017/09/02/seeking-clues-by-slicing-20000-year-old-mammoth-tusks Yours, Paul H.-
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- stable isotopes
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