Rocks at asteroid impact site record first day of dinosaur extinction

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Rocks at asteroid impact site record first day of dinosaur extinction

portion of the drilled cores from the rocks Rocks tell story of asteroid that doomed the dinosaurs
More at https://www.nsf.gov/discoveries/disc_summ.jsp?cntn_id=299284&WT.mc_id=USNSF_1


This is a Research News item.

Read more at nsf.gov

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