About the Editors

Lee C. Gerhard is principal geologist of the Kansas Geological Survey at the University of Kansas. He received his B.S. in geology at Syracuse University and M.S. and Ph.D. at the University of Kansas. He has combined academic, government, and industry leadership and technical appointments, including petroleum exploration, management of research and exploration programs, oil and gas regulation, and reservoir geology. His research interests are in carbonate sedimentology, petroleum geology, and environmental public policy. Gerhard was state geologist of North Dakota and directed a marine laboratory in the U.S. Virgin Islands. Prior to returning to Kansas, he was Getty Professor of Geological Engineering at the Colorado School of Mines, and he operated Gerhard and Associates, an independent petroleum-exploration company.

Gerhard is an honorary member of the American Association of Petroleum Geologists (AAPG), the Association of American State Geologists, and the Kansas Geological Society. He is a former president of the AAPG Division of Environmental Geosciences and an honorary member of that organization. He has published more than 150 papers and books on geology, petroleum exploration, natural resources, and environmental policy, and he was cochairman of the AAPG Ad Hoc Committee on Global Climate Issues.

William E. Harrison is deputy director of the Kansas Geological Survey. He received B.S. and M.S. degrees in geology from Lamar University and the University of Oklahoma, respectively. He joined Shell Oil Company as an exploration geologist in the Gulf Coast Division, and worked in the Houston and New Orleans Districts. Harrison left industry to attend Louisiana State University, where he received his Ph.D. in organic geochemistry. He worked in the Geologic Research Department of ARCO before going to the Oklahoma Geological Survey and the University of Oklahoma, where he held the Klabzuba Chair of Geology in the School of Geology and Geophysics.

Harrison rejoined ARCO as research director and was responsible for developing programs in petroleum geochemistry, quantitative basin modeling, reservoir characterization, and predrill porosity prediction. He joined the DOE Idaho National Engineering and Environmental Laboratory (INEEL) and held management positions with EG&G and Lockheed-Martin. He was responsible for a nationally recognized program in earth, life, and environmental sciences, and successfully transferred several INEEL technologies to the private sector. Harrison is president-elect of the Division of Environmental Geosciences of the American Association of Petroleum Geologists.

Bernold M. "Bruno" Hanson (1928-2000) was a mentor who touched the careers and lives of many of today's professional geologists. He served as president of the American Association of Petroleum Geologists and was a leader of alumni advisory committees for the advancement of education in geology. A native of North Dakota, Hanson was notably successful in the discovery of oil and gas. He was president of the Hanson Corporation, of Midland, Texas, for 40 years. Previously, he was employed by Magnolia (Mobil) Corporation and held several management positions with Exxon Corporation. He received his baccalaureate degree in geology from the University of North Dakota, and his master's and honorary doctorate from the University of Wyoming. Hanson published geological articles about Alaska, west Texas, and North Dakota oil fields and reservoirs.

Among his many activities in AAPG, Hanson was the founder and first president of the Division of Environmental Geosciences and cochairman of the Ad Hoc Committee on Global Climate Issues. He received the Sidney Powers Medal, AAPG's highest award, in 1996. He also received honors from the University of Wyoming, the University of North Dakota, the Boy Scouts of America, and the city of Midland, Texas. The Permian Chapter of Professional Secretaries International named him "Boss of the Year."