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The effects of pressure, temperature, and pore water on velocities in Westerly graniteA description is presented of an experimental assembly which has been developed to conduct concurrent measurements of compressional and shear wave velocities in rocks at high temperatures and confining pressures and with independent control of the pore pressure. The apparatus was used in studies of the joint effects of temperature, external confining pressure, and internal pore water on sonic velocities in Westerly granite. It was found that at a given temperature, confining pressure has a larger accelerating effect on compressional waves in dry rock, whereas at a given confining pressure, temperature has a larger retarding effect on shear waves.
Document ID
19760039151
Document Type
Reprint (Version printed in journal)
Authors
Spencer, J. W., Jr. (Stanford Univ. CA, United States)
Nur, A. M. (Stanford University Stanford, Calif., United States)
Date Acquired
August 8, 2013
Publication Date
February 10, 1976
Publication Information
Publication: Journal of Geophysical Research
Volume: 81
Subject Category
GEOPHYSICS
Funding Number(s)
CONTRACT_GRANT: NSF GA-29548
CONTRACT_GRANT: NGL-05-020-232
Distribution Limits
Public
Copyright
Other