James G. Crock, Ph.D.
James G. Crock is a retired analytical geochemist (37 years) with the U.S. Geological Survey, Crustal Geophysics and Geochemistry Science Center in Lakewood, Colorado. Dr. Crock earned a B.S. from Mount Union College in chemistry and geology, an M.S. from Pennsylvania State University in geochemistry, and a Ph.D. from the Colorado School of Mines in geochemistry. His research focused on methods development in analytical geochemistry and environmental geochemistry. Dr. Crock has published methods for the determination of numerous elements in "a wide variety of" geological and environmental matrices using various spectroscopic methods. "He also has published on various environmental studies, both internationally and nationally." He also served for ten years as the Associate Director of his Science Center.