Influence of impurities on the creep of salt from the Palo Duro Basin
Twelve triaxial compression creep tests were performed on salt specimens from the Woods-Holtzclaw well in the Palo Duro Basin to assess the influence of impurities on creep deformation. Four nominal impurity levels were initially selected for investigation: pure salt, salt containing 10% anhydrite, salt containing 10% mud, and salt containing 20% mud. Subsequent petrological measurements show these idealized categories do not exist. Composition of the samples was measured by methods of wet chemistry coupled with ethylene diaminetetraacetic acid (EDTA) digestion and point counting on full-size polished sections. Overall, the 12 specimens comprise 71.6--96.6% halite, 2.4--7.5% anhydrite, and 0.2--24.7% clay. Nine of the 12 specimens are similar to many other tested specimens from the Lower San Andres Unit 5. They range from 90--97% halite and average 94% with a standard deviation of 2%. The remaining 6% impurities are disseminated clay and anhydrite. The other three specimens from the Lower San Andres Unit 4 contain large amounts (average 20%) of uniformly distributed clays and average only 75% halite. 11 refs., 21 figs., 5 tabs.
- Research Organization:
- RE/SPEC, Inc., Albuquerque, NM (USA); Battelle Memorial Inst., Columbus, OH (USA). Office of Nuclear Waste Isolation
- DOE Contract Number:
- AC02-87CH10290; AC02-83CH10140
- OSTI ID:
- 7166442
- Report Number(s):
- BMI/ONWI/C-87; BMI/ONWI-679; ON: TI88012371
- Country of Publication:
- United States
- Language:
- English
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ANHYDRIDES
COMPLIANCE
CREEP
ENERGY SOURCES
FEDERAL REGION VI
FUELS
GEOLOGIC DEPOSITS
HALIDE MINERALS
HALITE
HIGH-LEVEL RADIOACTIVE WASTES
IMPURITIES
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RADIOACTIVE MATERIALS
RADIOACTIVE WASTE DISPOSAL
RADIOACTIVE WASTE FACILITIES
RADIOACTIVE WASTE MANAGEMENT
RADIOACTIVE WASTES
REACTOR MATERIALS
REGULATIONS
SALT DEPOSITS
SITE CHARACTERIZATION
SPENT FUELS
TEXAS
UNDERGROUND DISPOSAL
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WASTE DISPOSAL
WASTE MANAGEMENT
WASTES