Ancient Exhumed River Channels of the Morrison and Cedar Mountain Formations
Analogs for Eastern Utah Oil and Gas Fields and Features on Mars Too!
by Thomas C. Chidsey, Jr., Utah Geological Survey Rebecca M.E. Williams, Planetary Science Institute David E. Eby, Eby Petrography & Consulting, Inc.
About the Authors
Tom Chidsey is the Petroleum Section Chief for the Utah Geological Survey (UGS). His responsibilities comprise managing the petroleum program and conducting research in Utah’s petroleum geology.
A native of the Washington, D.C., metropolitan area, Tom received his Bachelor of Science degree in 1974 and a Master of Science degree in 1977, both in geology from Brigham Young University. During his 30-year career, Tom has worked as a production geologist for Exxon in South Texas and an exploration geologist in the Rocky Mountains for Celsius Energy Company (Questar Corp.) before joining the UGS in 1989.
He has served as Rocky Mountain Section President of the American Association of Petroleum Geologists (AAPG), President of the Utah Geological Association, and General Chairman for the 2003 AAPG Annual Convention in Salt Lake City. He has been an editor/co-editor of five guidebooks on Utah geology and has numerous publications on Utah petroleum geology, carbon dioxide resources and sequestration, hydrogeology, oil and gas reservoir outcrop analogs, and the general geology of Utah’s parks and monuments.
Rebecca M.E. Williams
Dr. Rebecca M.E. Williams, a research scientist with the Planetary Science Institute, is a planetary geologist specializing in fluvial geomorphology. Through a combination of qualitative and quantitative characterization of landforms using image and topographic datasets as well as fieldwork at terrestrial analog sites, she investigates the history of water on Mars.
Dr. Williams received her bachelor’s degree in 1995 from Franklin & Marshall College (Lancaster, Pennsylvania) with a joint major in physics and geology and minor in astronomy, and pursued doctoral studies in planetary geology at Washington University in St. Louis, graduating in 2000. Dr. Williams targeted the high-resolution Mars Orbiter Camera (MOC) on Mars Global Surveyor for over three years at Malin Space Science Systems.
She is a participating scientist with the THEMIS instrument aboard Mars Odyssey and the Context Camera (CTX) aboard the Mars Reconnaissance Orbiter. Dr. Williams is the recipient of a 2006 NASA Carl Sagan Fellowship for Early Career Researchers.
Editor’s note: If Drs. Williams and Eby look like they could be related, it’s because they are! Dave is Rebecca’s father!
Dave Eby is the owner of Eby Petrography & Consulting, Inc., a consulting firm based in Denver, Colorado, that assists clients in evaluating opportunities for oil, gas, and mineral exploration/production. He also performs projects in sedimentary petrography, mineralogy, core and cuttings studies, as well as training activities emphasizing carbonate and sandstone reservoirs. Clients include large and small energy and mining companies as well as state geological surveys.
He previously worked for Marathon Oil Petroleum Technology Center, Union Pacific Resources (now Anadarko Petroleum; and its predecessor Champlin Petroleum), and Mobil Oil R&D Corp. during earlier portions of his 40 years of industry experience. He also held teaching positions in Sedimentology and Paleontology over a 10-year period at the University of Texas (Dallas and Arlington), Franklin & Marshall College (Lancaster, Pennsylvania), and Southampton College (now part of SUNY at Stony Brook).
Dave received his A.B. degree from Franklin & Marshall College, M.S. degree from Brown University, and Ph.D. degree from State University of New York at Stony Brook, all in geology.
Survey Notes, v. 40 no. 3, September 2008