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Showing results for tags 'paleoenvironments'.
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Evidence of a 'Chaotic Solar System' from Cretaceous of Colorado
Oxytropidoceras posted a topic in Fossil News
From rocks in Colorado, evidence of a 'chaotic solar system' University of Wisconsin-Madison, February 22, 2017 http://news.wisc.edu/from-rocks-in-colorado-evidence-of-a-chaotic-solar-system/ https://www.sciencedaily.com/releases/2017/02/170222131512.htm http://www.astrobio.net/also-in-news/rocks-colorado-evidence-chaotic-solar-system/ The paper is: Ma, C., S. R. Meyers, and B. B. Sageman. Theory of chaotic orbital variations confirmed by Cretaceous geological evidence. Nature, 2017; 542 (7642): 468-470 DOI: 10.1038/nature21402 http://www.nature.com/nature/journal/v542/n7642/full/nature21402.html Related paper: Sageman, B. B., J. Rich, M. A. Arthur, G. E. Birchfield, and W. E. Dean, 1997, Evidence for Milankovitch Periodicities in Cenomanian-Turonian Lithologic and Geochemical Cycles, Western Interior U.S.A. Journal of Sedimentary Research, Section B: Stratigraphy and Global Studies Vol. 67 (1997) No. 2. (March), Pages 286-302 http://www.earth.northwestern.edu/research/sageman/PDF/97.Sageman.etal.pdf Yours, Paul H.- 2 replies
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- colorado
- cretaceous
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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 know just enough to talk endlessly about it but we do not know enough to supply you with firm numbers that would put any issue too firmly to arrest." Yours, Paul H.
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- archean
- extraterrestrial impacts
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Vertebrate Paleontology of Kyrgyzstan (Royal Tyrrell Museum Talk)
Oxytropidoceras posted a topic in Fossil News
Great talk about the vertebrate paleontology of Kyrgyzstan. Changing Landscapes in the Tien Shan Mountains of Kyrgyzstan Royal Tyrrell Museum of Palaeontology Dr. Win McLaughlin (Oberlin College) Published on Mar 11, 2019 https://www.youtube.com/watch?v=IuoJi8rpPxA Yours, Paul H.- 1 reply
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- kyrgyzstan
- miocene
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