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Showing results for tags 'deccan traps'.
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“Chill Factor” – The Volcanic Plot Twist in Dinosaur Extinction
Oxytropidoceras posted a topic in Fossil News
“Chill Factor” – The Volcanic Plot Twist in Dinosaur Extinction SciTechDaily, December 4, 2023 The open access paper is: Callegaro, S., Baker, D.R., Renne, P.R., Melluso, L., Geraki, K., Whitehouse, M.J., De Min, A. and Marzoli, A., 2023. Recurring volcanic winters during the latest Cretaceous: Sulfur and fluorine budgets of Deccan Traps lavas. Science Advances, 9(40), p.eadg8284. Yours, Paul H.-
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- 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: Hull, P.M., Bornemann, A., Penman, D.E., Henehan, M.J., Norris, R.D., Wilson, P.A., Blum, P., Alegret, L., Batenburg, S.J., Bown, P.R. and Bralower, T.J., 2020. On impact and volcanism across the Cretaceous- Paleogene boundary. Science, 367(6475), pp.266-272. https://science.sciencemag.org/content/367/6475/266.abstract Yours, Paul H.
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- asteroid
- asteroid impact
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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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- climate records
- cretaceous extinction
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