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earth:geohammers:m_bce_events [2018/05/24 10:33] khavikanum |
earth:geohammers:m_bce_events [2020/06/13 13:45] khavikanum |
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[[http://www.physorg.com/news183278038.html]] | [[http://www.physorg.com/news183278038.html]] | ||
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+ | ==== Homo erectus Diverges, 1.8M BCE ==== | ||
+ | |||
+ | Earliest //Homo erectus// skeletons found, although many put the divergence at anywhere from 2.1M to 2.8M BCE. | ||
+ | |||
+ | [[https://en.wikipedia.org/wiki/Homo_erectus]]\\ | ||
+ | [[https://en.wikipedia.org/wiki/Homo_habilis]] | ||
==== Galan Eruption, 2.2M BCE ==== | ==== Galan Eruption, 2.2M BCE ==== | ||
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[[https://en.wikipedia.org/wiki/Pleistocene]]\\ | [[https://en.wikipedia.org/wiki/Pleistocene]]\\ | ||
[[https://phys.org/news/2018-05-supernovae-responsible-mass-extinctions.html]]\\ | [[https://phys.org/news/2018-05-supernovae-responsible-mass-extinctions.html]]\\ | ||
+ | |||
+ | ==== LD 350-1, 2.8M BCE ==== | ||
+ | |||
+ | Whether an ancestor or a cousin of humanity, the LD 350-1 jawbone pushes the potential for a split in human evolution to around this timeframe, perhaps as an intermediary between austrolopithicines and homo. | ||
+ | |||
+ | [[https://en.wikipedia.org/wiki/Homo_habilis]]\\ | ||
+ | [[https://en.wikipedia.org/wiki/Ledi-Geraru#LD_350-1]]\\ | ||
==== Quarternary Glaciation, 3M BCE ==== | ==== Quarternary Glaciation, 3M BCE ==== | ||
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Alexandra Witze. 2010. "Siberian lake yields climate record: winter drilling project also penetrates ancient impact crater." //Science News//. 178(11):p13. | Alexandra Witze. 2010. "Siberian lake yields climate record: winter drilling project also penetrates ancient impact crater." //Science News//. 178(11):p13. | ||
+ | |||
+ | ==== Australpithecines Diverge, 4M BCE ==== | ||
+ | |||
+ | The Australopithecines and Hominina split -- and both are considered 'Human'. | ||
+ | |||
+ | [[https://en.wikipedia.org/wiki/Hominini]]\\ | ||
+ | [[https://en.wikipedia.org/wiki/Human_evolution]]\\ | ||
[[http://en.wikipedia.org/wiki/Lake_El'gygytgyn]] | [[http://en.wikipedia.org/wiki/Lake_El'gygytgyn]] | ||
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[[http://en.wikipedia.org/wiki/Karakul_(Tajikistan)]] | [[http://en.wikipedia.org/wiki/Karakul_(Tajikistan)]] | ||
+ | |||
+ | ==== Chimpanzee Diversion, 6.3M BCE ==== | ||
+ | |||
+ | Chimpanzees and the hominina lineage diverge. | ||
+ | |||
+ | [[https://en.wikipedia.org/wiki/Hominini]] | ||
==== Supernova Event, 8M BCE ==== | ==== Supernova Event, 8M BCE ==== | ||
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[[https://phys.org/news/2018-05-supernovae-responsible-mass-extinctions.html]] | [[https://phys.org/news/2018-05-supernovae-responsible-mass-extinctions.html]] | ||
+ | |||
+ | ==== McCullen Creek & Grey's Landing Supereruptions, 8.7-9M BCE ==== | ||
+ | |||
+ | The hot spot over Yellowstone erupted twice within a 300,000y period -- the second one being among the 'top five eruptions of all time' according to Thomas Knott. The McCullen Creek eruption at 8.99Ma was a VEI 8.6, and the Grey's Landing eruption at 8.72Ma was a VEI of 8.8. | ||
+ | |||
+ | Knott, Branney, et al, Geology, JUN2020. "Discovery of two new super-eruptions from Yellowstone hotspot track (USA): Is the Yellowstone hotspot waning?" [[https://doi.org/10.1130/G47384.1]]\\ | ||
+ | |||
+ | ==== Homininae End, 8 to 10M BCE ==== | ||
+ | |||
+ | Gorilla and human ancestors diverge. | ||
+ | |||
+ | [[https://en.wikipedia.org/wiki/Homininae]] | ||
==== Nordlinger Ries Impact Event, 14.4M BCE ==== | ==== Nordlinger Ries Impact Event, 14.4M BCE ==== | ||
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[[http://en.wikipedia.org/wiki/File:All_palaeotemps.png]]\\ | [[http://en.wikipedia.org/wiki/File:All_palaeotemps.png]]\\ | ||
[[http://en.wikipedia.org/wiki/File:All_palaeotemps.png]]\\ | [[http://en.wikipedia.org/wiki/File:All_palaeotemps.png]]\\ | ||
+ | |||
+ | ==== Monkey Diversion, 25M BCE ==== | ||
+ | |||
+ | Old World Monkeys diverse from the ancestral hominid lineage. | ||
+ | |||
+ | [[https://en.wikipedia.org/wiki/Hominini]] | ||
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Phys. Rev. Lett. 113, 231102.\\ | Phys. Rev. Lett. 113, 231102.\\ | ||
- | ==== Scafell Eruption, Late Ordovician Extinction, 443M BCE ==== | + | ==== Late Ordovician Extinction, 443M BCE ==== |
- | Located in England, this VEI 8 eruption took place at the end of the Ordovician, when some 85% of all life on earth went extinct with a rapid advance and retreat of glaciers. How much Scafell affected the glacial advance and retreat is currently unknown, as Gondwana was also drifting over the South Pole at that time, forming ice caps and sequestering global water. | + | Located in England, the Scafell Eruption (VEI 8) took place at the end of the Ordovician, when some 85% of all life on earth went extinct with a rapid advance and retreat of glaciers. How much Scafell affected the glacial advance and retreat is currently unknown, as Gondwana was also drifting over the South Pole at that time, forming ice caps and sequestering global water. A supernova has been fingered as a potential culprit, as well. |
[[http://en.wikipedia.org/wiki/Scafells]]\\ | [[http://en.wikipedia.org/wiki/Scafells]]\\ | ||
Birkett, B. 2007. __Scafell, Portrait of a Mountain__ London: Frances Lincoln Limited. p12\\ | Birkett, B. 2007. __Scafell, Portrait of a Mountain__ London: Frances Lincoln Limited. p12\\ | ||
[[http://en.wikipedia.org/wiki/Ordovician]]\\ | [[http://en.wikipedia.org/wiki/Ordovician]]\\ | ||
+ | [[https://en.wikipedia.org/wiki/Ordovician%E2%80%93Silurian_extinction_events]]\\ | ||
+ | [[https://en.wikipedia.org/wiki/Ordovician%E2%80%93Silurian_extinction_events]]\\ | ||
+ | [[https://en.wikipedia.org/wiki/Near-Earth_supernova]]\\ | ||
==== Andean-Saharan Glaciation, 450M BCE ==== | ==== Andean-Saharan Glaciation, 450M BCE ==== |