Bayesian chronological analyses consistent with synchronous age of 12,835–12,735 Cal B.P. for Younger Dryas boundary on four continents

Overview of attention for article published in Proceedings of the National Academy of Sciences of the United States of America, July 2015

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http://www.pnas.org/content/112/32/E4344

New paper on precisely dating the Younger Dryas boundary w/ PSU Anth co-authors D Kennett (@DJ_Kennett)

A gigantic cosmic impact, when large fragments of a disintegrating comet hit the North American ice cap approximately 12,800…

"A gigantic cosmic impact, when large fragments of a disintegrating comet hit the North American ice cap approximately 12,800…

A gigantic cosmic impact, when large fragments of a disintegrating comet hit the North American ice cap approximately 12,800…

A gigantic cosmic impact, when large fragments of a disintegrating comet hit the North American ice cap approximately 12,800…

A gigantic cosmic impact, when large fragments of a disintegrating comet hit the North American ice cap approximately 12,800…