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earth:geohammers:m_bce_events [2020/06/13 13:45]
khavikanum
earth:geohammers:m_bce_events [2022/05/02 22:42]
khavikanum
Line 51: Line 51:
 A meteor strike forms a 12km wide crater and lake, 100km north of the Arctic Circle and 360km from Pevek, Russia. ​ The Siberian crater was drilled for sediment core analysis and climate information by Julie Brigham-Grette and her team form the University of Massachusetts Amherst. A meteor strike forms a 12km wide crater and lake, 100km north of the Arctic Circle and 360km from Pevek, Russia. ​ The Siberian crater was drilled for sediment core analysis and climate information by Julie Brigham-Grette and her team form the University of Massachusetts Amherst.
  
-Alexandra Witze. ​ 2010.  "​Siberian lake yields climate record: winter drilling project also penetrates ancient impact crater." ​ //Science News//. 178(11):​p13.+The megaladon sharks go extinct during this time. 
 + 
 +Alexandra Witze. ​ 2010.  "​Siberian lake yields climate record: winter drilling project also penetrates ancient impact crater." ​ //Science News//. 178(11):​p13.\\ 
 +[[https://​www.popsci.com/​story/​science/​megalodon-alive-myth/?​utm_source=digg]]\\
  
 ==== Australpithecines Diverge, 4M BCE ==== ==== Australpithecines Diverge, 4M BCE ====
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 [[http://​en.wikipedia.org/​wiki/​Karakul_(Tajikistan)]] [[http://​en.wikipedia.org/​wiki/​Karakul_(Tajikistan)]]
 +
 +==== Miocene Ends / Pliocene Begins, 5.333M BCE ====
 +
 +A global warm period ends, and glaciations begin.
 +
 +[[https://​en.wikipedia.org/​wiki/​Miocene]]\\
  
 ==== Chimpanzee Diversion, 6.3M BCE ==== ==== Chimpanzee Diversion, 6.3M BCE ====
Line 139: Line 148:
 [[http://​geosphere.gsapubs.org/​content/​9/​4/​864.abstract]]\\ [[http://​geosphere.gsapubs.org/​content/​9/​4/​864.abstract]]\\
 [[http://​en.wikipedia.org/​wiki/​Marysvale_volcanic_field]] [[http://​en.wikipedia.org/​wiki/​Marysvale_volcanic_field]]
 +
 +==== ERV-FC Virus, 33M BCE ====
 +
 +A retrovirus began to infect mammals, and it did so for about 15M years.
 +
 +[[https://​en.wikipedia.org/​wiki/​ERV-Fc]]
  
 ====  Beginning of the Oligocene Epoch, 34M BCE ==== ====  Beginning of the Oligocene Epoch, 34M BCE ====
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 This rise in temperature likely drove out much of the oxygen in the world'​s oceans, causing a large die off of marine animals. ​ The world would have shifted to a warmer and wetter overall climate, a major selection event in and of itself. This rise in temperature likely drove out much of the oxygen in the world'​s oceans, causing a large die off of marine animals. ​ The world would have shifted to a warmer and wetter overall climate, a major selection event in and of itself.
 +
 +==== Hiawatha Crater, 58M BCE ====
 +
 +Originally thought to be only 13,000 years old, later analyses indicate that Hiawatha Crater on Greenland is much, much older.
 +
 +[[https://​phys.org/​news/​2022-03-giant-impact-crater-greenland-million.html]]\\
  
 ==== K-T Boundary, 65M BCE ==== ==== K-T Boundary, 65M BCE ====
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 [[http://​phys.org/​news/​2012-06-fungi-coal-formation-advance-future.html]] [[http://​phys.org/​news/​2012-06-fungi-coal-formation-advance-future.html]]
 +
 +==== KGB Carbon Dioxide Jump, 304M BCE ====
 +
 +Kasimovian-Gzhelian boundary (KGB) records doubling in CO2 from 350ppm to 700ppm within just 300,000 years.
 +
 +[[https://​phys.org/​news/​2022-05-carbon-climate-ocean-anoxia-ancient.html]]\\
  
 ==== End Devonian Impacts, Karoo Glaciation, 360M BCE ==== ==== End Devonian Impacts, Karoo Glaciation, 360M BCE ====
earth/geohammers/m_bce_events.txt · Last modified: 2022/12/25 17:55 by khavikanum