Time-dependent seismic tomography of the Coso geothermal area, 1996-2004

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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.

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Julian, B.R.; Foulger, G.R.; Richards-Dinger, K. & Monastero, F. April 1, 2006.

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Description

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.

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  • Thirty-First Workshop on Geothermal Reservoir Engineering, Stanford University, Stanford, California, January 30-February 1, 2006

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  • Report No.: Final Report supplement 4
  • Grant Number: FG36-06GO16058
  • Office of Scientific & Technical Information Report Number: 926259
  • Archival Resource Key: ark:/67531/metadc893377

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Office of Scientific & Technical Information Technical Reports

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  • April 1, 2006

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  • Sept. 27, 2016, 1:39 a.m.

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Julian, B.R.; Foulger, G.R.; Richards-Dinger, K. & Monastero, F. Time-dependent seismic tomography of the Coso geothermal area, 1996-2004, article, April 1, 2006; United States. (digital.library.unt.edu/ark:/67531/metadc893377/: accessed October 20, 2018), University of North Texas Libraries, Digital Library, digital.library.unt.edu; crediting UNT Libraries Government Documents Department.