Precambrian shield and basement tectonics in sedimentary basin analysis
This study focused on the use of (1) regional structural analysis of basement and Precambrian rocks surrounding a sedimentary basin, and (2) tracing basement structures into the sedimentary basin. The structural analysis of the Precambrian shield has a fundamental bearing on interpretation of overlying sedimentary cover rocks. This is expressed in the southern part of the Hudson's Bay basin and its southeastern arm, the Moose River basin. For instance, the rims of both basins are controlled by faults or graben structures. Approximately 13 major fault systems with strike lengths of 200-300 km (125-186 mi) or more can be traced from the exposed Precambrian shield into the basin in terms of lineament arrays and/or aeromagnetic and/or gravity signature. The data suggest reactivation of faults during basin sedimentation. This type of basement structural analysis in areas adjacent to sedimentary basins can provide a valuable interpretation base for subsequent seismic surveys and basin evaluation.
- Research Organization:
- Touborg Consultants, Inc., Toronto, Ontario
- OSTI ID:
- 6327497
- Report Number(s):
- CONF-8405216-
- Journal Information:
- Am. Assoc. Pet. Geol., Bull.; (United States), Vol. 68:4; Conference: AAPG annual convention, San Antonio, TX, USA, 20 May 1984
- Country of Publication:
- United States
- Language:
- English
Similar Records
Tracing Precambrian lithologies and structures beneath northeastern part of Michigan basin
Model for the tectonic development of the southeastern Colorado Plateau boundary
Related Subjects
03 NATURAL GAS
CANADA
SEDIMENTARY BASINS
ORIGIN
GEOLOGIC FAULTS
GEOLOGIC STRUCTURES
PRECAMBRIAN ERA
SEISMIC SURVEYS
TECTONICS
GEOLOGIC AGES
GEOLOGIC FRACTURES
GEOPHYSICAL SURVEYS
NORTH AMERICA
SURVEYS
020200* - Petroleum- Reserves
Geology
& Exploration
030200 - Natural Gas- Reserves
Geology
& Exploration