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Compressional Tectonic
Structural Geology (Rocky Mountains) |
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Instructors: James A. Helwig, Ph.D.
Course Length: 8 Days
Course CEUs: 6.4
Course Description
The large investment in workstations and 3-D seismic surveys requires the interpreter to have a clear picture of what geological structures really look like in the field. This seminar begins in Denver and ends in Salt Lake City. We will examine structures of the Wyoming foreland province, Wyoming-Utah Thrust Belt, Basin and Range. Outcrops of normal, reverse and thrust faults, fault bend folds and fault propagation folds are studied along with oil and gas fields and seismic lines. The role of structure reactivation and inversion during compression in the foreland is contrasted to the mechanics of thin-skinned detached structures in the thrust belt. The control of younger basin and range extension by older contractional structures is analyzed. The use of a regional tectonic framework and chronology is related to the kinematics, timing and geometry of trapping structures in a petroleum systems context. The course includes two half-day workshops and one half-day free time in Jackson. Itinerary includes 7 days in the field with overnight stays in Cheyenne, Casper, Buffalo, Cody (2 nights), Jackson (2 nights) and Montpelier. The seminar begins with arrival in Denver and ends at the Salt Lake City Airport.
Who should attend
Geologists and geophysicists that need hands-on experience of structural geology.
Course Content
- Review of geometric models of structures
- Real world versus seismic scale and resolution
- Fold and fault geometry in outcrops
- Integration of outcrop and subsurface data
- Thick-skinned vs. thin-skinned structures
- Superposition of extension and contraction
- Basement-cover deformation
- Structural reactivation and inversion
- 3-D geometry and displacement transfer
- Growth structures and analysis of timing
- Regional kinematics and balancing
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