M. Scott Wilkerson is Professor of Geosciences at DePauw University in Greencastle, IN. He holds a Ph.D. from the University of Illinois, and a B.S. from Murray State University. He specializes in structural geology & tectonics and utilizes spatial technologies (such as
Google Earth) in his teaching and research.
M. Beth Wilkerson is the GIS Specialist at DePauw University in Greencastle, IN. In her role at DePauw's GIS Center, Beth coordinates and oversees spatial technology projects campus-wide for faculty, staff, and students. She also promotes use of spatial technologies by conducting workshops for various groups (including K-12 outreach) on topics related to GIS, Google Earth, and GPS. Beth holds a M.S. from the University of Illinois, and a B.S. from Murray State University.
Stephen Marshak is Professor of Geology and Head of the Department of Geology at the University of Illinois, Urbana-Champaign. He holds a Ph.D. from Columbia University, an M.S. from the University of Arizona, and a B.A. from Cornell University. He has served as Chair of the Division of Structural Geology and Tectonics of the Geological Society of America. Dr. Marshak has written numerous research articles on topics in structural geology and tectonics, and has authored or co-authored three other books: Basic Methods of Structural Geology; Earth Structure: An Introduction to Structural Geology and Tectonics; and Essentials of Geology.