Invisible volcanic ash gives clues to Neanderthal demise

Monday, August 6, 2012 - 02:30 in Paleontology & Archaeology

(Phys.org) -- Invisible to the human eye, cryptotephra is a fine volcanic glass that is blasted out of erupting volcanoes along with ash. It leaves behind a hidden layer, in the earth, which has now been detected, giving clues about why the Neanderthals died out.

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