News articles tagged with 'spherule'
[chronologically, reverse order]
Impact hypothesis loses its sparkle
— 31 Aug 2010 09:33 | Geology and palaeontologyAbout 12,900 years ago, a sudden cold snap interrupted the gradual warming that had followed the last Ice Age. The cold lasted for the 1,300-year interval known as the Younger Dryas…
Arizona's mammoth hunters - out with a whimper or a bang?
— 13 Apr 2010 09:44 | Geology and palaeontologyA team of researchers from the University of Arizona has revisited evidence pointing to a cataclysmic event thought by many scientists to have wiped out the North American megafauna…
News articles tagged with 'spherule' — 2
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