Exploring abrupt climate change induced by comets and asteroids during human history

March 5, 2012

From a University of California – Santa Barbara Press Release: “In the entire geologic record, there are only two known continent-wide layers with abundance peaks in nanodiamonds, impact spherules, and aciniform soot. These are in the 65-million-year-old Cretaceous-Paleogene boundary layer that coincided with major extinctions, including the dinosaurs and ammonites; and the Younger Dryas boundary event at…
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