Mar 05, 2012 04:56 PM EST
Study Jointly Led by UCSB Researcher Supports Theory of Extraterrestrial Impact
A 16-member international team of researchers that includes James Kennett, professor of earth science at UC Santa Barbara, has identified a nearly 13,000-year-old layer of thin, dark sediment buried in the floor of Lake Cuitzeo in central Mexico. The sediment layer contains an exotic assemblage of m...