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Geologic section and hydrologic observations at station 1A, Tatum salt dome, Lamar County, Mississippi

Author
Taylor, R. E.
Published
United States : [publisher not identified], 1966.
Springfield, Va. : National Technical Information Service, [approximately 1966]
Physical Description
microfiche : negative ; 11 x 15 cm

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Summary
Station 1A was the emplacement hole for the nuclear device used in the Advanced Research Project Agency's and U.S. Atomic Energy Commission's 5-kT nuclear Salmon Event of October 22, 1964. The hole penetrated the Pascagoula and Hattiesburg Formations, undifferentiated, and the Catahoula Sandstone, all of Miocene age, before entering the caprock at a depth of 882 feet. In continued through the calcite, gypsum, and anhydrite units of the caprock, which extend to a depth of 1,469.5 feet, and terminated in the salt stock at a depth of 2,802 feet. Five sand aquifer units lie above the caprock, whereas one sand aquifer lies within the calcite unit of the caprock. Drilling activities did not cause noticeable water-level fluctuations in the sand aquifers; however, during drilling in the calcite caprock, drilling fluid losses twice caused significant but temporary rises in water level in three observation wells that monitor the calcite limestone aquifer. The microscopic examination of drill cuttings collected at 10-foot intervals to a depth of 1,220 feet in Station 1A is presented. 2 figures, 1 table.
Report Numbers
USGS-474-301
Other Subject(s)
Collection
NTIS collection.
Note
DOE contract number: EY-76-A-08-0474
OSTI Identifier 6326984
Research organization: US Geological Survey, Denver, CO (United States).
View MARC record | catkey: 45336946