William A. Rehrig has a Professional Degree from the Colorado School of Mines and Phd from University of Arizona (1969). He entered the field of minerals exploration in 1964 after several years of foreign work in petroleum exploration. From 1970 through 1982, he worked for Conoco and Phillips Mineral Groups in charge of Frontier Exploration. Four years of this time were devoted to geochemical studies surrounding porphyry copper deposits. After approximately 18 years of working for major exploration companies in the western U.S., he and Robert Wilson organized and directed a consulting company called Applied Geologic Studies (AGS) in 1982. This company served the metals exploration industry with regional geologic targeting studies, kinematic structure of producing deposits, and project field work for over 20 years. After semi-retiring from AGS in 2003, Rehrig has continued consulting, contracting with Newmont Mining and various Junior exploration groups. He has also engaged in field research with the U.S. Geological Survey.
Dr. Rehrig had the good fortune of contributing pioneering work in “Cordilleran Metamorphic Core Complexes” and controls of porphyry copper-molybdenum deposits. He has numerous publications on these subjects. His main research experience has focused on structural-tectonic influences on metals mineralization and specialized geochemical exploration tools.