PRISEM Geoscience Consulting


Kevin Chamberlain, Ph.D., geochronology
​Research Professor, University of Wyoming

​Gary McSweyn, Land Services​

Michael C. Pope, Ph.D., stratigraphy
Professor, Texas A&M University

Bob Quartero, M.Sc., exploration advisor

Steven D. Sheriff, VP Geophysics
Armed with a Geophysics Ph.D. from the University of Wyoming since 1981, Steve spent a year in magnetic and gravity consulting before joining the faculty at the University of Montana. At UM, where he chaired the department for 17 years, his research has included geophysical solutions to structural and tectonic problems, environmental assessment, and recently the application of near surface geophysics to archaeological targets. Contributions over the years include commercial gravity/magnetic programming and software, academic publications, and numerous private and public project reports. His expertise is magnetic and gravity exploration in the energy and minerals arenas and archaeological prospection.
P. Ted Doughty, Principal and founder
Ted received his B.A. degree in geology from Washington University in St. Louis in 1986 and his M.S. degree from the University of Montana in 1990.  He worked for Amoco Production Company in Denver before obtaining a Ph.D. from Queens University in 1995.  He joined Exxon as a research geologist and exploration geologist from 1996 to 1999 and was a tenured associate professor at Eastern Washington University before leaving academia and forming PRISEM Geoscience in 2005. Ted is a licensed professional geologist in WA and WY and a certified petroleum geologist..

George W. Grader, VP Stratigraphy
George received his BS in earth science and philosophy from Colby College and his M.Sc. and Ph.D. in geology from the University of Idaho. His research has focused on Devonian and Mississippian sedimentology and stratigraphy of the northern Rockies, and Carboniferous siliciclastics and carbonates of the central Andes. Since 2007, he has been involved in oil and gas projects in Montana and North Dakota focused primarily on Bakken and Heath projects, but also including lower Paleozoic and Mesozoic targets. Extensive fieldwork and core study of the Late Devonian Jefferson, Three Forks, Sappington and Lower Madison has produced original PRISEM field trips. He has continued in collaboration with the University of Idaho and Texas A&M on Bakken correlatives in western Montana (and associated palynology) and the study of South America Paloezoic paleoclimates.