skip to main content
OSTI.GOV title logo U.S. Department of Energy
Office of Scientific and Technical Information

Title: An integrated geological and geophysical analysis of thrusting in the Hoback Range, Sublette and Teton Counties, Wyoming

Conference · · AAPG Bulletin (American Association of Petroleum Geologists); (United States)
OSTI ID:5787938
;  [1]
  1. Amoco Production Co., Denver, CO (United States)

Recent seismic acquisition and drilling in the Hoback Range of the Wyoming thrust belt have focused on the buried Granite Creek thrust sheet. To date, four wells have penetrated the thrust sheet and have yielded some encouraging results without establishing production. Wells, seismic control, and surface geology help define the sourthern extent of the Granite Creek thrust package as well as the lateral and subsurface geometry of other thrust packages in the area. The Hoback Range provides an excellent view of a frontal thrust zone with several unique attributes. In contrast to most parts of the Cordilleran thrust belt, the regional layer dips east, reflecting the convergence of the northern Moxa arch and the thrust belt. Typical eastward younging of thrusting is not followed, and the order of thrusting can be shown to break back to the west. Unlike other parts of the Wyoming thrust belt, a west-vergent thrust bounds the eastern limit of thrusting and forms a possible triangle zone. The Cache Creek fault merges into the northern end of the range and offers an excellent opportunity to study thrust-belt and foreland interactions. This study illustrates many of the problems typically encountered in areas of complex structure and demonstrated how they may be solved using an integrated geological and geophysical approach.

OSTI ID:
5787938
Report Number(s):
CONF-9107109-; CODEN: AABUD
Journal Information:
AAPG Bulletin (American Association of Petroleum Geologists); (United States), Vol. 75:6; Conference: American Association of Petroleum Geologists (AAPG) Rocky Mountain Section meeting, Billings, MT (United States), 28-31 Jul 1991; ISSN 0149-1423
Country of Publication:
United States
Language:
English