Sonoma State University
March 6, 1972

To Date A Rock

Dr. Rolfe Erickson
Sonoma State College

Darwin 103
3:00 PM

Dr. Rolfe Erickson of the SSC Geology Department will discuss radioactive dating: how an examination of carbon-14, potassium-40, and lead-206 can tell us the age of the earth and other interesting things.