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Science 4 August 1978:
Vol. 201. no. 4354, pp. 441 - 442
DOI: 10.1126/science.201.4354.441
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Articles

Velocity Anomalies in Dilatant Rock

CHRISTOPHER H. SCHOLZ 1

1 Lamont-Doherty Geological Observatory and Department of Geological Sciences, Columbia University, Palisades, New York 10964

Seismic velocities measured in rock deformed in the laboratory show excellent agreement with theoretical predictions of the effects of crack growth during dilatancy. Under appropriate conditions dilatancy was observed to produce a drop in the ratio of the seismic compressional velocity to the seismic shear velocity both by the mechanism of undersaturation and by a liquid-gas phase transition.

Submitted on January 9, 1978
Revised on May 8, 1978


THIS ARTICLE HAS BEEN CITED BY OTHER ARTICLES:
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