Location of oil fields in Forest City basin as related to Precambrian tectonics

Journal Article · Fri Sep 01 04:00:00 EDT 1989 · AAPG Bulletin (American Association of Petroleum Geologists); (USA)

OSTI ID:5535741

Carlson, M P ^[1]

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1. Univ. of Nebraska, Lincoln (USA)

Accumulation of petroleum in the Forest City basin is strongly influenced by the tectonic framework established during the Precambrian. A series of Late Proterozoic orogenies created a fracture pattern in the northern Mid-Continent, which was emphasized by the late Keweenawan, Mid-Continent Rift System (MRS). Reactivated basement structures have created both a structural and depositional imprint on younger rocks. The Southeast Nebraska arch is defined by Middle Ordovician (Simpson) overlap of Arbuckle equivalents. Continuing differential movement along segments of the MRS within the North Kansas basin influenced the regional facies distribution of both the Late Ordovician (Viola) and the Late Devonian (Hunton). Middle Pennsylvanian compression from the Ouachita orogeny produced the Nemaha uplift and reactivated transform faulting on the MRS. Extensions of these southeast-trending fractures created offsets on the Nemaha uplift/Humboldt fault system and enhanced structures that host oil production. Fields that lie upon these wrench-fault trends within the Forest City basin have produced from the Simpson (St. Peter), Viola, and Hunton formations. The Precambrian structures and rock types produce strong geophysical signatures in contrast to the subdued anomalies of the Paleozoic sediments. Analyses of magnetic and gravity data provide an interpretation of the basement rocks and, by extrapolation, an additional exploration tool for locating Paleozoic trends related to reactivation of Precambrian tectonics.

• OSTI ID: 5535741
• Journal Information: AAPG Bulletin (American Association of Petroleum Geologists); (USA), Journal Name: AAPG Bulletin (American Association of Petroleum Geologists); (USA) Vol. 73:9; ISSN AABUD; ISSN 0149-1423
• Country of Publication: United States
• Language: English

Related Subjects

02 PETROLEUM
020200* -- Petroleum-- Reserves
Geology
& Exploration
EXPLORATION
FEDERAL REGION VII
GEOLOGIC AGES
GEOLOGIC DEPOSITS
GEOLOGIC FAULTS
GEOLOGIC FRACTURES
GEOLOGIC STRUCTURES
KANSAS
MINERAL RESOURCES
NEBRASKA
NORTH AMERICA
OIL FIELDS
ORDOVICIAN PERIOD
PALEOZOIC ERA
PENNSYLVANIAN PERIOD
PETROLEUM DEPOSITS
PRECAMBRIAN ERA
RESOURCES
RIFT ZONES
SEDIMENTARY BASINS
TECTONICS
USA