Tiny diamonds on Santa Rosa Island give evidence of cosmic impact
Tuesday, July 21, 2009 - 13:42
in Paleontology & Archaeology
(Santa Barbara, Calif.) -- -- Nanosized diamonds found just a few meters below the surface of Santa Rosa Island off the coast of Santa Barbara provide strong evidence of a cosmic impact event in North America approximately 12,900 years ago, according to a new study by scientists. Their hypothesis holds that fragments of a comet struck across North America at that time.