Monte Mountain thrust, additional confirmation of the central Nevada thrust

Conference · Tue May 01 00:00:00 EDT 1990 · AAPG Bulletin (American Association of Petroleum Geologists); (USA)

OSTI ID:6857594

Chamberlain, A K ^[1]; Chamberlain, R L ^[2]

---

1. Cedar Strat, Lakewood, CO (USA)
2. Anschutz Corp., Denver, CO (USA)

The Monte Mountain thrust, a newly identified thrust exposed in the Timpahute Range, east central Nevada places porous Devonian reservoir rocks over rich Mississippian source rocks at the peak oil generating window. The thrust provides insurmountable evidence of a thrust model that may lead to discovery of giant oil and gas fields along the 400-mi long central Nevada thrust belt. The Timpahute Range lies a little over 50 mi on strike to the south of the prolific Grant Canyon field. Scattered remnants of the north-trending thrust belt are obscured by parallel valleys of Tertiary valley fill and volcanics. The fact that the east-west-trending Timpahute Range could contain exposures of the north-south-trending central Nevada thrust belt attracted them to the range, Familiarity with the stratigraphic section led to the discovery of the thrust. As much as 750 ft of Devonian Guilmette sandstones, in the hanging wall just above the thrust contact have been erroneously mapped as Mississippian Scotty Wash sandstones. These Devonian sandstones could be excellent reservoir rocks. Sandstones in the Guilmette increase in thickness westward. East-vergent thrusting has juxtaposed plates of thicker Guilmette sandstones with plates of thinner sandstones, Reconstruction of Devonian paleogeography provides a clue to the amount of displacement along thrust boundaries.

• OSTI ID: 6857594
• Report Number(s): CONF-900605-; CODEN: AABUD
• Journal Information: AAPG Bulletin (American Association of Petroleum Geologists); (USA), Vol. 74:5; Conference: Annual convention and exposition of the American Association of Petroleum Geologists, San Francisco, CA (USA), 3-6 Jun 1990; ISSN 0149-1423
• Country of Publication: United States
• Language: English

Related Subjects

02 PETROLEUM
58 GEOSCIENCES
NEVADA
GEOLOGIC FAULTS
PETROLEUM DEPOSITS
EXPLORATION
CARBONIFEROUS PERIOD
DEVONIAN PERIOD
GEOLOGIC TRAPS
RESERVOIR ROCK
SANDSTONES
TERTIARY PERIOD
CENOZOIC ERA
FEDERAL REGION IX
GEOLOGIC AGES
GEOLOGIC DEPOSITS
GEOLOGIC FRACTURES
GEOLOGIC STRUCTURES
MINERAL RESOURCES
NORTH AMERICA
PALEOZOIC ERA
RESOURCES
ROCKS
SEDIMENTARY ROCKS
USA
020200* - Petroleum- Reserves
Geology
& Exploration
580000 - Geosciences