Structural geology of southeastern Illinois and vicinity
Southeastern Illinois is the locus of several converging fault systems of differing orientations. The specific research goals of this project were to determine the relationship of these fault systems (i.e. the Fluorospar District, the Wabash Valley, Shawneetown and the Cottage Grove) to each other and whether or not any of them have been active in the Quaternary. Detailed field mapping indicated that southern Illinois and adjacent areas are currently subject to a compressional stress field in which the major axis is east to east-northeast. North-trending thrust faults of small magnitude may be forming in response to these stresses, but the major fault systems are neither active or likely to be reactivated in this modern stress field. 129 references, 48 figures.
- Research Organization:
- Illinois State Geological Survey, Champaign (USA)
- OSTI ID:
- 6108296
- Report Number(s):
- NUREG/CR-4036; ON: TI85901090
- Country of Publication:
- United States
- Language:
- English
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Structural relationships between Cottage Grove and Shawneetown fault systems, southeastern Illinois, as inferred from gravity data
Structural geology of Shawneetown fault zone, Southeastern Illinois
Related Subjects
580201* -- Geophysics-- Seismology & Tectonics-- (1980-1989)
DATA
DATA COMPILATION
FEDERAL REGION IV
FEDERAL REGION V
GEOLOGIC FAULTS
GEOLOGIC FRACTURES
GEOLOGIC STRUCTURES
GEOLOGICAL SURVEYS
ILLINOIS
INDIANA
INFORMATION
KENTUCKY
NORTH AMERICA
NUMERICAL DATA
SEISMICITY
STRESSES
SURVEYS
USA