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| Title: |
Time-dependent seismic tomography of the Coso geothermal area, 1996-2004 |
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| Creator/Author: |
Julian, B.R.
;
G.R. Foulger
;
K. Richards-Dinger
;
F. Monastero
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| Publication Date: | 2006 Apr 01 |
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| OSTI Identifier: | OSTI 926259 |
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| Report Number(s): | Final Report supplement 4 |
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| DOE Contract Number: | FG36-06GO16058 |
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| Document Type: | Conference |
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| Specific Type: | |
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| Coverage: | |
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| Resource Relation: | Conference: Thirty-First Workshop on Geothermal Reservoir Engineering, Stanford University, Stanford, California, January 30-February 1, 2006 |
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| Other Number(s): | |
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| Research Org: | Gillian R. Foulger (Foulger Consulting) |
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| Sponsoring Org: | USDOE - Office of Geothermal Technologies(EE-12) |
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| Subject: | 15 GEOTHERMAL ENERGY |
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| Keywords: | geothermal, earthquakes, hydrofracturing |
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| Description/Abstract: | 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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| Publisher: | |
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| Country of Publication: | US |
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| Language: | English |
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| Size/Format: | Medium: ED |
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| Rights: | |
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| Availability: | http://www.dur.ac.uk/g.r.foulger/Offprints/Coso_SGW2006.pdf |
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| System Entry Date: | 2008 Aug 25 |
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