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Role of fluids in faulting inferred from stress field signatures

Hardebeck, Jeanne L. and Hauksson, Egill (1999) Role of fluids in faulting inferred from stress field signatures. Science, 285 (5425). pp. 236-239. ISSN 0036-8075. https://resolver.caltech.edu/CaltechAUTHORS:20130215-143153973

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Abstract

The stress orientation signature of weak faults containing high-pressure fluids has been observed for segments of the San Andreas fault system in southern California. The inferred lithostatic fluid pressures extend into the surrounding relatively intact rock in a zone scaling with the width of the interseismic strain accumulation. Repeated strain-related fracturing and crack sealing may have created low-permeability barriers that seal fluids into the network of currently active fractures.


Item Type:Article
Related URLs:
URLURL TypeDescription
http://dx.doi.org/10.1126/science.285.5425.236 DOIArticle
http://www.sciencemag.org/content/285/5425/236PublisherArticle
ORCID:
AuthorORCID
Hauksson, Egill0000-0002-6834-5051
Additional Information:© 1999 American Association for the Advancement of Science. Received 18 November 1998; accepted 7 June 1999. Supported by the Southern California Earthquake Center (SCEC), NSF Cooperative Agreement EAR-8920136, U.S. Geological Survey (USGS) Cooperative Agreements 14-08-0001-A0899 and 1434-HQ-97AG01718, and USGS grant 99HQGR0039. We thank H. Kanamori, L. M. Jones, J. Deng, M. D. Zoback, and S. Hickman for valuable reviews and A. J. Michael and J. W. Gephart for sharing their stress inversion programs. This is SCEC contribution 452 and Caltech DGPS contribution 8586.
Group:Seismological Laboratory
Funders:
Funding AgencyGrant Number
Southern California Earthquake Center (SCEC)UNSPECIFIED
NSFEAR-8920136
USGS14-08-0001-A0899
USGS1434-HQ-97AG01718
USGS99HQGR0039
Other Numbering System:
Other Numbering System NameOther Numbering System ID
Southern California Earthquake Center (SCEC)452
Caltech Division of Geological and Planetary Sciences8586
Issue or Number:5425
Record Number:CaltechAUTHORS:20130215-143153973
Persistent URL:https://resolver.caltech.edu/CaltechAUTHORS:20130215-143153973
Usage Policy:No commercial reproduction, distribution, display or performance rights in this work are provided.
ID Code:36965
Collection:CaltechAUTHORS
Deposited By: Tony Diaz
Deposited On:15 Feb 2013 23:49
Last Modified:03 Oct 2019 04:43

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