Please use this identifier to cite or link to this item: http://hdl.handle.net/2122/9311
DC FieldValueLanguage
dc.contributor.authorallKuo, L.; National Taiwan University, 10617 Taipei, Taiwan-
dc.contributor.authorallLi, H.; State Key Laboratory of Continental Tectonic and Dynamics, Institute of Geology, Chinese Academy of Geological Sciences, Beijing 100037, China-
dc.contributor.authorallSmith, S. A. F.; Istituto Nazionale di Geofisica e Vulcanologia, Sezione Roma1, Roma, Italia-
dc.contributor.authorallDi Toro, G.; Istituto Nazionale di Geofisica e Vulcanologia, Sezione Roma1, Roma, Italia-
dc.contributor.authorallSuppe, J.; National Taiwan University, 10617 Taipei, Taiwan-
dc.contributor.authorallSong, S; National Taiwan University, 10617 Taipei, Taiwan-
dc.contributor.authorallNielsen, S. B.; Istituto Nazionale di Geofisica e Vulcanologia, Sezione Roma1, Roma, Italia-
dc.contributor.authorallSheu, H.; National Synchrotron Radiation Research Center, 30076 Hsinchu, Taiwan-
dc.contributor.authorallSi, J.; State Key Laboratory of Continental Tectonic and Dynamics, Institute of Geology, Chinese Academy of Geological Sciences, Beijing 100037, China-
dc.date.accessioned2015-02-09T07:48:31Z-
dc.date.available2015-02-09T07:48:31Z-
dc.date.issued2013-11-
dc.identifier.urihttp://hdl.handle.net/2122/9311-
dc.description.abstractThe Longmenshan fault that ruptured during the 2008 Mw 7.9 Wenchuan (China) earthquake was drilled to a depth of 1200 m, and fault rocks including those in the 2008 earthquake slip zone were recovered at a depth of 575–595 m. We report laboratory strength measurements and microstructural observations from samples of slip zone fault rocks at deformation conditions expected for coseismic slip at borehole depths. Results indicate that the Longmenshan fault at this locality is extremely weak at seismic slip rates. In situ synchrotron X-ray diffraction analysis indicates that graphite was formed along localized slip zones in the experimental products, similar to the occurrence of graphite in the natural principal slip zone of the 2008 Wenchuan rupture. We surmise that graphitization occurred due to frictional heating of carbonaceous minerals. Because graphitization was associated with strong dynamic weakening in the experiments, we further infer that the Longmenshan fault was extremely weak at borehole depths during the 2008 Wenchuan earthquake, and that enrichment of graphite along localized slip zones could be used as an indicator of transient frictional heating during seismic slip in the upper crust.en_US
dc.language.isoengen_US
dc.publisher.nameGeological Society of Americaen_US
dc.relation.ispartofGeology (Geological Society of America)en_US
dc.relation.ispartofseries1/42(2013)en_US
dc.subjectWenchuanen_US
dc.subjectdrilling projecten_US
dc.subjectEarthquakesen_US
dc.subjectRock mechanicsen_US
dc.titleGouge graphitization and dynamic fault weakening during the 2008 Mw 7.9 Wenchuan earthquakeen_US
dc.typearticle-
dc.description.statusPublisheden_US
dc.type.QualityControlPeer-revieweden_US
dc.description.pagenumber47-50en_US
dc.subject.INGV04. Solid Earth::04.01. Earth Interior::04.01.04. Mineral physics and properties of rocksen_US
dc.subject.INGV04. Solid Earth::04.04. Geology::04.04.06. Rheology, friction, and structure of fault zonesen_US
dc.subject.INGV04. Solid Earth::04.06. Seismology::04.06.01. Earthquake faults: properties and evolutionen_US
dc.subject.INGV04. Solid Earth::04.07. Tectonophysics::04.07.07. Tectonicsen_US
dc.identifier.doi10.1130/G34862.1en_US
dc.description.obiettivoSpecifico4T. Fisica dei terremoti e scenari cosismicien_US
dc.description.journalTypeJCR Journalen_US
dc.description.fulltextreserveden
dc.relation.issn0091-7613en_US
dc.relation.eissn1943-2682en_US
dc.contributor.authorKuo, L.-
dc.contributor.authorLi, H.-
dc.contributor.authorSmith, S. A. F.-
dc.contributor.authorDi Toro, G.-
dc.contributor.authorSuppe, J.-
dc.contributor.authorSong, S-
dc.contributor.authorNielsen, S. B.-
dc.contributor.authorSheu, H.-
dc.contributor.authorSi, J.-
dc.contributor.departmentNational Taiwan University, 10617 Taipei, Taiwan-
dc.contributor.departmentState Key Laboratory of Continental Tectonic and Dynamics, Institute of Geology, Chinese Academy of Geological Sciences, Beijing 100037, China-
dc.contributor.departmentIstituto Nazionale di Geofisica e Vulcanologia, Sezione Roma1, Roma, Italia-
dc.contributor.departmentIstituto Nazionale di Geofisica e Vulcanologia, Sezione Roma1, Roma, Italia-
dc.contributor.departmentNational Taiwan University, 10617 Taipei, Taiwan-
dc.contributor.departmentNational Taiwan University, 10617 Taipei, Taiwan-
dc.contributor.departmentIstituto Nazionale di Geofisica e Vulcanologia, Sezione Roma1, Roma, Italia-
dc.contributor.departmentNational Synchrotron Radiation Research Center, 30076 Hsinchu, Taiwan-
dc.contributor.departmentState Key Laboratory of Continental Tectonic and Dynamics, Institute of Geology, Chinese Academy of Geological Sciences, Beijing 100037, China-
item.grantfulltextreserved-
item.fulltextWith Fulltext-
crisitem.author.deptNational Taiwan University, 10617 Taipei, Taiwan-
crisitem.author.deptIstituto Nazionale di Geofisica e Vulcanologia (INGV), Sezione Roma1, Roma, Italia-
crisitem.author.deptNational Synchrotron Radiation Research Center, 30076 Hsinchu, Taiwan-
crisitem.author.deptState Key Laboratory of Continental Tectonic and Dynamics, Institute of Geology, Chinese Academy of Geological Sciences, Beijing 100037, China-
crisitem.author.deptIstituto Nazionale di Geofisica e Vulcanologia (INGV), Sezione Roma1, Roma, Italia-
crisitem.author.deptNational Taiwan University, 10617 Taipei, Taiwan-
crisitem.author.deptIstituto Nazionale di Geofisica e Vulcanologia (INGV), Sezione Roma1, Roma, Italia-
crisitem.author.deptSchool of Geophysics and Information Technology, China University of Geosciences (Beijing)-
crisitem.author.deptNational Taiwan University, 10617 Taipei, Taiwan-
crisitem.author.parentorgIstituto Nazionale di Geofisica e Vulcanologia-
crisitem.author.parentorgIstituto Nazionale di Geofisica e Vulcanologia-
crisitem.author.parentorgIstituto Nazionale di Geofisica e Vulcanologia-
crisitem.classification.parent04. Solid Earth-
crisitem.classification.parent04. Solid Earth-
crisitem.classification.parent04. Solid Earth-
crisitem.classification.parent04. Solid Earth-
Appears in Collections:Papers Published / Papers in press
Files in This Item:
File Description SizeFormat 
Geology-2014-Kuo-47-50.pdf1.76 MBAdobe PDFView/Open
Show simple item record

Page view(s)

118
Last Week
0
Last month
0
checked on Sep 23, 2018

Download(s)

27
checked on Sep 23, 2018

Google ScholarTM

Check

Altmetric