Rock deformation in hydrothermal systems: the nature of fractures in plutons and their host rocks. Technical progress report
The purpose of this program is to accumulate the types of field data which are important for the analysis of magma-hydrothermal systems. The structural effects of thermal processes were identified in order to distinguish the thermally induced deformations from the deformations that occurred subsequent to complete cooling of the system. Mapping techniques were developed to record the structural data on the ground from local domains characteristic of larger areas in the magma chamber, and in the air from low-angle oblique aerial photography of the entire region. The ground system is complete and preliminary testing is currently being carried out to verify the method. The results indicate that granitic crystalline rocks have no structural resistance to thermal perturbations. If nuclear wastes are to be stored in granite, precautionary buffers would have to be incorporated into the system. A total of 30 fossil magma chambers have been studied over the past 2 years. An extensive set of fracture imagery has been collected, together with information related to the geological history of the plutons. Fossil magma chambers in Arizona, Utah, California, Washington, Montana, and British Columbia have been studied.
- Research Organization:
- Univ. of Arizona, Tucson, AZ (United States)
- DOE Contract Number:
- AC02-81ER10842
- OSTI ID:
- 5718987
- Report Number(s):
- DOE/ER/10842-1; ON: DE82005301; TRN: 82-007000
- Country of Publication:
- United States
- Language:
- English
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Rock deformation in magma-hydrothermal systems: the nature of fractures in plutons and their host rocks. Technical progress report
Related Subjects
58 GEOSCIENCES
15 GEOTHERMAL ENERGY
ARIZONA
MAGMA SYSTEMS
BRITISH COLUMBIA
CALIFORNIA
GRANITES
DEFORMATION
AERIAL SURVEYING
MONTANA
UTAH
WASHINGTON
FRACTURES
HYDROTHERMAL SYSTEMS
MAPPING
RADIOACTIVE WASTE DISPOSAL
TEMPERATURE EFFECTS
UNDERGROUND DISPOSAL
CANADA
ENERGY SYSTEMS
FAILURES
GEOTHERMAL SYSTEMS
IGNEOUS ROCKS
MANAGEMENT
NORTH AMERICA
PACIFIC NORTHWEST REGION
PLUTONIC ROCKS
ROCKS
ROCKY MOUNTAIN REGION
USA
WASTE DISPOSAL
WASTE MANAGEMENT
WESTERN REGION
Geothermal Legacy
052002* - Nuclear Fuels- Waste Disposal & Storage
580100 - Geology & Hydrology- (-1989)
150200 - Geology & Hydrology of Geothermal Systems