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Showing results for tags 'deccan traps'.
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Yale University. "In death of dinosaurs, it was all about the asteroid -- not volcanoes." ScienceDaily. ScienceDaily, 16 January 2020. https://www.sciencedaily.com/releases/2020/01/200116141708.htm Meteorite or Volcano? New Clues to the Dinosaurs’ Demise Twin calamities marked the end of the Cretaceous period, and scientists are presenting new evidence of which drove one of Earth’s great extinctions. New York Times, January 16, 2020 https://www.nytimes.com/2020/01/16/science/dinosaurs-extinction-meteorite-volcano.html The paper is:
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Not the ones you eat. Mercury levels are high in late Cretaceous fossil shellfish. The shellfish can indicate sea temperatures with a special carbonate analysis too. So researchers can compare rising mercury from the Deccan Traps eruptions to rising temperatures at the same time. Surprisingly high levels of mercury contamination occurred. https://m.phys.org/news/2019-12-fossil-shells-reveal-global-mercury.html
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The Nastiest Feud in Science A Princeton geologist has endured decades of ridicule for arguing that the fifth extinction was caused not by an asteroid but by a series of colossal volcanic eruptions. But sheʼs reopened that debate. Bianca Bosker, The Atlantic, September 2018 https://www.theatlantic.com/magazine/archive/2018/09/dinosaur-extinction-debate/565769/ Gerta Keller, Professor of Geosciences http://gkeller.princeton.edu/ Yours, Paul H.
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