Rather revealing study in comparisons of warming and cooling cycle intensities.
Makes our current warming/cooling cycles seem puny.
Be sure and go to link at #19 and scan down to post #2 where Sunkenciv puts up an extraordinary series of links for more reading....amazing !!
Plasma, Solar Outbursts, and the End of the Last Ice Age
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The Official Website thereof ^ | prior to July 15, 2011 | Dr. Robert M. Schoch
Posted on Fri 15 Jul 2011 10:15:16 AM PDT by SunkenCiv
15,000 to 11,000 years ago Earth experienced a series of climatic fluctuations... there was a short cold spell, known as the Younger Dryas, before the final warming and... end of the last ice age. Based on Greenland ice core data, the Younger Dryas began... 10,900 B.C., and its ending... circa 9700 B.C. and may have occurred within an incredible three years... I once hypothesized that comets were responsible. A comet hitting the land or a shallow ocean, or exploding above the land's surface, scattering dust and debris into the atmosphere, would cause global cooling... This pattern fits well with the cooling at 10,900 B.C. and there is evidence of a cometary explosion over North America at this time... comets hitting deep oceans were responsible. A comet might break the thin oceanic crust, releasing heat from the hot magma beneath. Vaporized and displaced water would rain down on Earth, and tsunamis would wash across coastal areas, warming the planet... [But] Plasma hitting the surface of Earth could heat and fuse rock, incinerate flammable materials, melt ice caps, vaporize shallow bodies of water creating an extended deluge of rain, and send the climate into a warming spell. The release of pressure that follows the melting of thousands-of-meters-thick ice sheets can induce earthquakes and even cause hot rock under pressure to melt and erupt to the surface as volcanoes... The plasma event of 9700 B.C. eradicated advanced civilizations and high cultures of the time, and... could be the basis for the nearly universal myth of a Golden Age, a time when beings on Earth had mental abilities far surpassing those of later times. The 9700 B.C. event may be the original basis for the Atlantis legends; the timeframe fits well with Plato's account.
(Excerpt) Read more at robertschoch.com ...