Accession Number : AD0769992

Title :   Rock Deformation at High Confining Pressure and Temperature.

Descriptive Note : Final rept. 1 Nov 70-31 Dec 72,

Corporate Author : TEXAS A AND M UNIV COLLEGE STATION CENTER FOR TECTONOPHYSICS

Personal Author(s) : Logan,John M.

Report Date : 30 JAN 1973

Pagination or Media Count : 14

Abstract : A triaxial rock deformation apparatus capable of generating confining pressures to 10 kb and temperatures to 1000C has been built, calibrated, debugged, delivered and installed to the contracting agency. Clay specimens of illite, kaolinite and montmorillonite were deformed in tri-axial compression at 25 and 3000C at a constant confining pressure of 2 kb and a constant strain rate of .0001 sec. The illite and kaolinite are stronger under these conditions than montmorillonite. Cores from dolomite single crystals were deformed at a confining pressure of 7 kb and temperatures of 300 and 500C. The dependence of intracrystalline slip on temperature has been documented. (Author)

Descriptors :   (*Pressure vessels, *Triaxial stresses), (*Rock mechanics, Test equipment), Deformation, Rock, Dolomite, Clay minerals, Temperature

Subject Categories : Geology, Geochemistry and Mineralogy
      Test Facilities, Equipment and Methods

Distribution Statement : APPROVED FOR PUBLIC RELEASE