Variation of seismic-wave velocities in westerly granite under stress /
about 6%. The shear-wave velocity increased by different
| Main Author: | |
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| Format: | Thesis eBook |
| Language: | English |
| Published: |
[Place of publication not identified] :
[publisher not identified] ;
1994.
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| Subjects: | |
| Online Access: | Link to OAKTrust copy |
| Summary: | about 6%. The shear-wave velocity increased by different amounts in different directions. The amount of increase anisotropy. In this study P- and S-wave velocities were closure of cracks. Previous studies have shown that, if a cracked rock is subjected to three mutually perpendicular direction of the maximum stresses and about 3% along the direction of the minimum stresses and showed an anisotropy of direction parallel to the minimum stress axis. Furthermore, directions (if any) and the type of stress-induced directions at zero pressure suggests an isotropic rock measured in a cubic sample of Westerly granite subjected to parallel to the maidmum stress axis and minimum in the ranged from 3.4% to about 6%. The anisotropy in S-wave rupture pressure, this velocity increase occurs due to the sample. The P-wave velocity increased by about 9% along the Seismic-wave velocities in cracked rocks increase with some investigators have been able to relate the pattern of stress. It is believed that, within less than half the stresses, the velocity increase is maximum in the direction The general agreement in the velocity values in different two perpendicular axial stresses (ranging from 0 to 7.0 MPa). velocity increase with stress to the preferential crack velocity was in the order of 1.6%. |
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| Item Description: | "Major subject: Geophysics". Vita. |
| Physical Description: | x, 39 leaves : illustrations ; 28 cm. Also available online. |
| Bibliography: | Includes bibliographical references. |