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Title: Geology and energy resources of southwest Sego Canyon quadrangle, Grand County, Utah

Abstract

The Southwest Sego Canyon 7 1/2-minute quadrangle is located in the Book Cliffs of eastern Utah and contain an exposed sequence of Upper Cretaceous through Eocene rocks. Exposed units include rocks from the upper Mancos Shale through the undifferentiated Wasatch Formation and were deposited during the final regressive phase of the Mancos sea. They represent shallow open-marine, wave-dominated deltas, and lower through upper flood-plain depositional environments. Coal has been produced from seams up to 8 ft (2.5 m) thick, but reserves are largely undeveloped. Hydrocarbons have been produced from adjacent areas, and similar structural and stratigraphic traps may exist in the quadrangle. The area is crossed by low-profile, north-northwest-trending folds. The Thompson anticline is a faulted, salt-movement produced fold. The Cisco dome is caused by minor Laramide adjustment on the Uncompahgre fault. The quadrangle overlies the Paradox basin margin and may have deeper Paleozoic related traps. Evidence of several structural events exists within the stratigraphic sequence. The Farrer Formation thins over the nose of the Cisco dome and documents Campanian movement on the Uncompahgre fault. Tuscher Formation current directions shift from east to northeast, indicating initiation of uplift on the San Rafael swell. Overlying conglomerate beds follow a 15-m.y. erosionalmore » hiatus and show sufficient uplift on the Uncompahgre fault to expose Mississippian rocks. Ratios of sandstone to shale in Wasatch Formation show derivation from the Uncompahgre uplift and a gradual reduction of the Uncompahgre highland.« less

Authors:
Publication Date:
Research Org.:
Utah Geological and Mineral Survey, Salt Lake, City
OSTI Identifier:
5536273
Report Number(s):
CONF-8408161-
Journal ID: CODEN: AAPGB
Resource Type:
Conference
Journal Name:
Am. Assoc. Pet. Geol., Bull.; (United States)
Additional Journal Information:
Journal Volume: 68:7; Conference: Energy and More in '84, Salt Lake City, UT, USA, 27 Aug 1984
Country of Publication:
United States
Language:
English
Subject:
02 PETROLEUM; 03 NATURAL GAS; 01 COAL, LIGNITE, AND PEAT; COAL DEPOSITS; GEOLOGY; NATURAL GAS DEPOSITS; PETROLEUM DEPOSITS; UTAH; ALLUVIAL DEPOSITS; CRETACEOUS PERIOD; DEPOSITION; GEOLOGIC FORMATIONS; GEOLOGIC TRAPS; SALT DEPOSITS; SANDSTONES; TERTIARY PERIOD; CENOZOIC ERA; FEDERAL REGION VIII; GEOLOGIC AGES; GEOLOGIC DEPOSITS; MESOZOIC ERA; MINERAL RESOURCES; NORTH AMERICA; RESOURCES; ROCKS; SEDIMENTARY ROCKS; USA; 020200* - Petroleum- Reserves, Geology, & Exploration; 030200 - Natural Gas- Reserves, Geology, & Exploration; 011000 - Coal, Lignite, & Peat- Reserves, Geology, & Exploration

Citation Formats

Willis, G C. Geology and energy resources of southwest Sego Canyon quadrangle, Grand County, Utah. United States: N. p., 1984. Web.
Willis, G C. Geology and energy resources of southwest Sego Canyon quadrangle, Grand County, Utah. United States.
Willis, G C. 1984. "Geology and energy resources of southwest Sego Canyon quadrangle, Grand County, Utah". United States.
@article{osti_5536273,
title = {Geology and energy resources of southwest Sego Canyon quadrangle, Grand County, Utah},
author = {Willis, G C},
abstractNote = {The Southwest Sego Canyon 7 1/2-minute quadrangle is located in the Book Cliffs of eastern Utah and contain an exposed sequence of Upper Cretaceous through Eocene rocks. Exposed units include rocks from the upper Mancos Shale through the undifferentiated Wasatch Formation and were deposited during the final regressive phase of the Mancos sea. They represent shallow open-marine, wave-dominated deltas, and lower through upper flood-plain depositional environments. Coal has been produced from seams up to 8 ft (2.5 m) thick, but reserves are largely undeveloped. Hydrocarbons have been produced from adjacent areas, and similar structural and stratigraphic traps may exist in the quadrangle. The area is crossed by low-profile, north-northwest-trending folds. The Thompson anticline is a faulted, salt-movement produced fold. The Cisco dome is caused by minor Laramide adjustment on the Uncompahgre fault. The quadrangle overlies the Paradox basin margin and may have deeper Paleozoic related traps. Evidence of several structural events exists within the stratigraphic sequence. The Farrer Formation thins over the nose of the Cisco dome and documents Campanian movement on the Uncompahgre fault. Tuscher Formation current directions shift from east to northeast, indicating initiation of uplift on the San Rafael swell. Overlying conglomerate beds follow a 15-m.y. erosional hiatus and show sufficient uplift on the Uncompahgre fault to expose Mississippian rocks. Ratios of sandstone to shale in Wasatch Formation show derivation from the Uncompahgre uplift and a gradual reduction of the Uncompahgre highland.},
doi = {},
url = {https://www.osti.gov/biblio/5536273}, journal = {Am. Assoc. Pet. Geol., Bull.; (United States)},
number = ,
volume = 68:7,
place = {United States},
year = {Sun Jul 01 00:00:00 EDT 1984},
month = {Sun Jul 01 00:00:00 EDT 1984}
}

Conference:
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