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Showing results for tags 'tectonics'.
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There are so many maps which show the continents as they moved. The problem I have is they all seem to depict the geographical center. Are there any online "globes" which show the entirety, including the "proto-Pacific"
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I was wondering if anyone knows of a list or a paper explaining prehistoric mountain ranges and then if it is possible to calculate height or approximate height. Just trying to learn all I can about mountains that used to exist. Again thanks for any and all help.
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- mountain
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Lost continent of Zealandia mapped in unprecedented detail
Oxytropidoceras posted a topic in Geology
Lost continent of Zealandia mapped in unprecedented detail By Brandon Specktor, Live Science https://www.livescience.com/lost-continent-zealandia-new-tectonic-map.html E Tūhura - Explore Zealandia, A portal for geoscience webmaps and information on the Te Riu-a-Māui / Zealandia region https://data.gns.cri.nz/tez/index.html Yours, Paul H.-
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- basement geology
- bathymetry
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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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Diamond’s 2-billion-year Growth Recorded Tectonic Shifts
Oxytropidoceras posted a topic in Rocks & Minerals
Diamond’s 2-billion-year growth charts tectonic shift in early Earth’s carbon cycle, Europlanet Media Centre, February 23, 2017 http://www.europlanet-eu.org/2-billion-year-old-diamond/ http://www.europlanet-eu.org/wp-content/uploads/2017/02/catholuminescence_composite.jpg https://www.sciencedaily.com/releases/2017/02/170223102126.htm Timmerman, S., J.M. Koornneef, I.L. Chinn, G.R. Davies, 2017, Dated eclogitic diamond growth zones reveal variable recycling of crustal carbon through time. Earth and Planetary Science Letters, 2017; 463: 178 DOI: 10.1016/j.epsl.2017.02.001 http://www.sciencedirect.com/science/article/pii/S0012821X17300614 Yours, Paul H.-
- crustal carbon
- diamond
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