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Post by Deleted on Feb 17, 2017 8:41:51 GMT
The end of the Ice Age and the death of millions of animals and numerous species. Around 9750 BCE, with the end of the Ice Age, came the formation of the Carolina Bays, more than 500,000 shallow elliptical depressions found along North America’s Atlantic coastal plain from New Jersey to Florida. At the bottom of these “bays” is an unusual blue clay containing iridium, carbon spherules, and nanodiamonds, which have been determined to be extraterrestrial markers. Ted Bunch, Richard Firestone, and Ken Tankersley propose that the formation of these bays is linked to the Younger Dryas impact event, which may have led to the extinction of large mammals, such as mammoths, and the Clovis people, the first inhabitants of North America.
I especially appreciate Malkowski’s coverage of this episode in Earth’s history in chapter 11, “An Invisible Cataclysm.” Any civilization that existed prior to the end of the Ice Age would have suffered as greatly as the animals did.
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Post by Deleted on Feb 17, 2017 9:13:27 GMT
The Pleistocene mega-fauna extinctions are analogous with human migration from the top of North America, down through to the bottom of South America...
This coincides with climate amelioration, enabling not just humans but many other species colonising the American continents...
The results included, human predation, species pushed into ever smaller habitat Islands unable to adapt to a new environment, and a change in flora... new diseases, viruses, and bacteria entering populations previously isolated by the ice age.
Mega-fauna were hit by all these factors, in a series of feedback loops...
The same happened on the other continents as well, notably Europe and Australasia... it is all easily traceable in the archaeological record...
There may have been a concurrent extraterrestrial impact, but I don't think it was directly responsible for the mega-fauna extinctions.
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