Cottage Grove Fault System in southern Illinois
The Cottage Grove Fault System is one of the major tectonic fault systems in southern Illinois. It extends from the Saline-Gallatin County line westward at least as far as Campbell Hill in Jackson County, a distance of about 70 miles. The zone of faulting is as much as 10 miles wide, and individual faults have as much as 200 feet of vertical offset. The age of faulting in the Cottage Grove system is certainly post-middle Pennsylvanian and pre-Pleistocene. Although several finds of oil and gas have been made in structural traps along the Cottage Grove Fault System, production from the area south of the system has been negligible. The fault system transects a major coal mining region, and its effect on mining operations is serious and detrimental.
- Research Organization:
- Illinois Inst. of Natural Resources, Champaign (USA). State Geological Survey Div.
- OSTI ID:
- 6131356
- Report Number(s):
- PB-83-174433
- Country of Publication:
- United States
- Language:
- English
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012000 -- Coal
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02 PETROLEUM
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03 NATURAL GAS
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58 GEOSCIENCES
580100* -- Geology & Hydrology-- (-1989)
COAL MINING
FEDERAL REGION V
GEOLOGIC DEPOSITS
GEOLOGIC FAULTS
GEOLOGIC STRUCTURES
HAZARDS
ILLINOIS
MINERAL RESOURCES
MINING
NATURAL GAS DEPOSITS
NORTH AMERICA
PETROLEUM DEPOSITS
PRODUCTION
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TECTONICS
USA