THREE-DIMENSIONAL COMPRESSIONAL- AND SHEAR-WAVE SEISMIC VELOCITY MODELS FOR THE SOUTHEAST GEYSERS GEOTHERMAL FIELD, CALIFORNIA
- Location
- The Geysers, California
- Conference
- Stanford Geothermal Workshop
- Year
- 1997
- Language
- English
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Abstract
Three-dimensional compressional- and shear-wave velocity (ìVpî and ìVs,î respectively) structure is obtained for the SE Geysers geothermal area from
microearthquake arrival-time data. The results indicate a region of high Vp and high Vs in the northwest portion of the area studied, and a low value
of VpNs at depths corresponding to the upper part of the steam reservoir. The Vp and Vs anomalies are found to be well-modeled by the predicted seismic signature of the felsite intrusion.
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