Regional implications of an extensive linear sediment-dispersal system along western margin of Cretaceous interior seaway: Second Wall Creek sand, Powder River basin, Wyoming

Conference · Mon Feb 01 04:00:00 EST 1988 · AAPG Bull.; (United States)

OSTI ID:6011483

Vondra, C F; Khandaker, N I

The Second Wall Creek sand in the Powder River basin in Johnson and Natrona Counties is similar in clast lithology, primary sedimentary structures, and facies association to the Torchlight Sandstone at the top of the Frontier Formation in the northern Big Horn basin. The Second Wall Creek sand is predominantly composed of medium to coarse-grained, moderately sorted massive to cross-bedded quartz-lithic wacke with a minor amount of carbonaceous shale and siltstone. The observed field relationships and petrographic data have important tectonostratigraphic implications concerning Late Cretaceous sedimentation in the Western Interior. In addition to its great potential as an oil-bearing horizon in both Big Horn and Powder River basins, this sediment-dispersal pattern will aid in reevaluating the regional sandbody architecture and reservoir characteristics of the upper Frontier Formation.

• Research Organization: Iowa State Univ., Ames (USA)
• OSTI ID: 6011483
• Report Number(s): CONF-880301-
• Conference Information: Journal Name: AAPG Bull.; (United States) Journal Volume: 72:2
• Country of Publication: United States
• Language: English

Related Subjects

02 PETROLEUM
020200* -- Petroleum-- Reserves
Geology
& Exploration
03 NATURAL GAS
030200 -- Natural Gas-- Reserves
Geology
& Exploration
CRETACEOUS PERIOD
EXPLORATION
FEDERAL REGION VIII
GEOLOGIC AGES
GEOLOGIC DEPOSITS
GEOLOGIC FORMATIONS
LITHOLOGY
MESOZOIC ERA
MINERAL RESOURCES
MONTANA
NORTH AMERICA
PETROLEUM DEPOSITS
POWDER RIVER BASIN
RESERVOIR ROCK
RESOURCES
ROCKS
SANDSTONES
SEDIMENTARY ROCKS
SHALES
SILTSTONES
USA
WYOMING