Time-dependent seismic tomography of the Coso geothermal area, 1996-2004
Conference
·
OSTI ID:926259
- U.S. Geological Survey, Menlo Park, CA (United States); Foulger Consulting
- U.S. Geological Survey, Menlo Park, CA (United States); Durham Univ. (United Kingdom). Dept. of Earth Sciences
- Naval Air Weapons Station, China Lake, CA (United States). Geothermal Program Office
Local-earthquake tomographic images were calculated for each of the years 1996 - 2004 using arrival times from the U.S. Navy’s permanent seismometer network at the Coso geothermal area, California. The results show irregular strengthening with time of the wave-speed ratio VP/VS at shallow depths. These changes result predominately from progressive relative increase in VS with respect to VP, and could result from processes associated with geothermal operations such as decrease in fluid pressure and the drying of argillaceous minerals such as illite.
- Research Organization:
- Durham Univ. (United Kingdom)
- Sponsoring Organization:
- USDOE Office of Energy Efficiency and Renewable Energy (EERE), Geothermal Technologies Office (EE-4G)
- DOE Contract Number:
- FG36-06GO16058
- OSTI ID:
- 926259
- Report Number(s):
- SGP-TR--179
- Country of Publication:
- United States
- Language:
- English
Similar Records
Time-dependent seismic tomography and its application to the Coso geothermal area, 1996-2006
Seismic monitoring of EGS tests at the Coso Geothermal area, California, using accurate MEQ locations and full moment tensors
Microearthquake moment tensors from the Coso Geothermal area
Conference
·
Mon Mar 31 00:00:00 EDT 2008
·
OSTI ID:926250
Seismic monitoring of EGS tests at the Coso Geothermal area, California, using accurate MEQ locations and full moment tensors
Conference
·
Mon Mar 31 00:00:00 EDT 2008
·
OSTI ID:926252
Microearthquake moment tensors from the Coso Geothermal area
Conference
·
Sat Mar 31 00:00:00 EDT 2007
·
OSTI ID:926254