earth:geohammers:k_bce_events
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earth:geohammers:k_bce_events [2018/11/15 00:16] khavikanum [Younger Dryas, 12.8K BCE] |
earth:geohammers:k_bce_events [2020/06/25 14:08] khavikanum |
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| [[http://en.wikipedia.org/wiki/Lake_Agassiz]]\\ | [[http://en.wikipedia.org/wiki/Lake_Agassiz]]\\ | ||
| - | The smoking gun for a cometary airburst creating massive wildfires and instantly melting a great deal of glacial ice (to shut down the thermohaline current) was found with iridium and platinum in ice core samples. A tentative crater has been identified in Greenland beneath the Hiawatha Crater. | + | The smoking gun for a cometary airburst or impact creating massive wildfires and instantly melting a great deal of glacial ice (to shut down the thermohaline current) was found with iridium and platinum in ice core samples. A tentative crater has been identified in Greenland beneath the **Hiawatha Crater**. |
| [[http://phys.org/news/2013-08-evidence-cosmic-impact-younger-dryas.html]]\\ | [[http://phys.org/news/2013-08-evidence-cosmic-impact-younger-dryas.html]]\\ | ||
| [[http://phys.org/news/2015-07-cataclysmic-event-age.html]]\\ | [[http://phys.org/news/2015-07-cataclysmic-event-age.html]]\\ | ||
| - | [[http://blogs.discovermagazine.com/crux/2018/11/14/greenland-crater-discovered-cause-younger-dryas/?utm_source=dscfb&utm_medium=social&utm_campaign=dscfb&fbclid=IwAR1XQzeV7Vf8Dyg3J5PlhuHainUwErfxrXPoJxvz65YCc8-PzHYig5ap5aA#.W-y0mehKhaQ]] | + | [[http://advances.sciencemag.org/content/4/11/eaar8173]]\\ |
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| + | A simultaneous VEI 6 in Germany known as Laacher See has been implicated as a factor in the Younger Dryas. | ||
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| + | [[https://en.wikipedia.org/wiki/Laacher_See]]\\ | ||
| ==== H1 Megadrought, 16.8k BCE ==== | ==== H1 Megadrought, 16.8k BCE ==== | ||
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| ==== Long Valley Caldera, 760k BCE ==== | ==== Long Valley Caldera, 760k BCE ==== | ||
| - | A large magma chamber in eastern California near Mammoth Mountain blows in a VEI 7 eruption. The area still hosts hot springs and a geothermal plant, but the magma is gone from the pool. The crater filled with water at some point and formed a lake that drained roughly 100,000 years ago. Ash from the eruption likely covered much of the western United States. | + | A large magma chamber in eastern California near Mammoth Mountain blows in a VEI 7 eruption. The area still hosts hot springs and a geothermal plant, but very little magma remains in the pool. The crater filled with water at some point and formed a lake that drained roughly 100,000 years ago. Ash from the eruption likely covered much of the western United States. |
| [[http://en.wikipedia.org/wiki/Long_Valley_Caldera]]\\ | [[http://en.wikipedia.org/wiki/Long_Valley_Caldera]]\\ | ||
earth/geohammers/k_bce_events.txt · Last modified: 2022/05/20 22:46 by khavikanum
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