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Clovis culture comet catastrophe is a myth

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Author Topic: Clovis culture comet catastrophe is a myth  (Read 82 times)
Arcturus
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« on: February 03, 2013, 01:54:03 am »



The hallmarks include lumps of glasslike carbon (top), carbon spherules (middle, in cross section), and magnetic grains rich in iridium (bottom). A layer of carbon-rich sediment (arrow) found here at Murray Springs, Ariz.©Cannon Microprobe
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