Stratigraphic and structural configuration of the Navajo (Jurassic) through Ouray (Mississippian-Devonian) formations in the vicinity of Davis and Lavender Canyons, southeastern Utah
This study developed a three-dimensional computer model of stratigraphic and structural relationships within a 3497-km/sup 2/ (1350-mi/sup 2/) study area centered on the proposed site for a high-level nuclear waste repository in southeastern Utah. The model consists of a sequence of internally reconciled isopach and structure contour maps horizontally registered and stored in stratigraphic order. This model can be used to display cross sections, perspective block diagrams, or fence diagrams at any orientation; estimate depth of formation contacts and thicknesses for any new stratigraphic or hydrologic boreholes; facilitate ground-water modeling studies; and evaluate the structural and stratigraphic evolution of the study area. This study also includes limited evaluations of aquifer continuity in the Elephant Canyon and Honaker Trail Formations, and of salt dissolution and flowage features as interpreted from geophysical logs. The study identified a long history of movement in the fault system in the north-central part of the study area and a major salt flowage feature in the northeastern part. It describes the Elephant Canyon Formation aquifer as laterally limited, the Honaker Trail Formation aquifer as fairly continuous over the area, and Beef Basin in the southern part of the area as a probable dissolution feature. It also concludes that the Shay-Bridger Jack-Salt Creek Graben system is apparently a vertically continuous feature between the basement and ground surface. No stratigraphic or structural discontinuities were detected in the vicinity of Davis Canyon that appear to be detrimental to the siting of a waste repository.
- Research Organization:
- Woodward-Clyde Consultants, San Francisco, CA (USA)
- DOE Contract Number:
- AC02-83CH10140
- OSTI ID:
- 5113460
- Report Number(s):
- BMI/ONWI-594; ON: DE87001851
- Resource Relation:
- Other Information: Portions of this document are illegible in microfiche products. Original copy available until stock is exhausted
- Country of Publication:
- United States
- Language:
- English
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Related Subjects
12 MANAGEMENT OF RADIOACTIVE AND NON-RADIOACTIVE WASTES FROM NUCLEAR FACILITIES
RADIOACTIVE WASTE FACILITIES
SITE SELECTION
UTAH
GEOLOGIC STRUCTURES
STRATIGRAPHY
AQUIFERS
DEVONIAN PERIOD
GEOLOGIC FAULTS
JURASSIC PERIOD
MISSISSIPPIAN PERIOD
SITE CHARACTERIZATION
FEDERAL REGION VIII
GEOLOGIC AGES
GEOLOGIC FRACTURES
GEOLOGY
MESOZOIC ERA
NORTH AMERICA
NUCLEAR FACILITIES
PALEOZOIC ERA
USA
580100* - Geology & Hydrology- (-1989)
052002 - Nuclear Fuels- Waste Disposal & Storage