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Showing results for tags 'extraterrestrial impacts'.
Oxytropidoceras posted a topic in Fossil NewsNew open access paper about mass extinctions. Pankhurst, M.J., Stevenson, C.J. and Coldwell, B.C., 2021. Meteorites that produce K-feldspar-rich ejecta blankets correspond to mass extinctions. Journal of the Geological Society. 179, jgs2021-055, 1 December 2021 Yours,
A great lecture and lengthy lecture about Archean paleoenvironments, tectonics, geology, and some paleontology is: Archean Surface Conditions Ideas in Science By Christoph Heubeck - RED18 Published on Mar 12, 2018 http://astrobiovideo.com/en/video/175 https://www.youtube.com/watch?v=yNEkQ8KV-aQ It begins: "Here is the the principal take-home take-home message. All right. We know very little about the early Earth and and therefore it's such an interesting thing to talk about. We do know a bit right. We k