Please use this identifier to cite or link to this item:
http://hdl.handle.net/2122/9311
DC Field | Value | Language |
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dc.contributor.authorall | Kuo, L.; National Taiwan University, 10617 Taipei, Taiwan | en |
dc.contributor.authorall | Li, H.; State Key Laboratory of Continental Tectonic and Dynamics, Institute of Geology, Chinese Academy of Geological Sciences, Beijing 100037, China | en |
dc.contributor.authorall | Smith, S. A. F.; Istituto Nazionale di Geofisica e Vulcanologia, Sezione Roma1, Roma, Italia | en |
dc.contributor.authorall | Di Toro, G.; Istituto Nazionale di Geofisica e Vulcanologia, Sezione Roma1, Roma, Italia | en |
dc.contributor.authorall | Suppe, J.; National Taiwan University, 10617 Taipei, Taiwan | en |
dc.contributor.authorall | Song, S; National Taiwan University, 10617 Taipei, Taiwan | en |
dc.contributor.authorall | Nielsen, S. B.; Istituto Nazionale di Geofisica e Vulcanologia, Sezione Roma1, Roma, Italia | en |
dc.contributor.authorall | Sheu, H.; National Synchrotron Radiation Research Center, 30076 Hsinchu, Taiwan | en |
dc.contributor.authorall | Si, J.; State Key Laboratory of Continental Tectonic and Dynamics, Institute of Geology, Chinese Academy of Geological Sciences, Beijing 100037, China | en |
dc.date.accessioned | 2015-02-09T07:48:31Z | en |
dc.date.available | 2015-02-09T07:48:31Z | en |
dc.date.issued | 2013-11 | en |
dc.identifier.uri | http://hdl.handle.net/2122/9311 | en |
dc.description.abstract | The 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 |
dc.language.iso | English | en |
dc.publisher.name | Geological Society of America | en |
dc.relation.ispartof | Geology (Geological Society of America) | en |
dc.relation.ispartofseries | 1/42(2013) | en |
dc.subject | Wenchuan | en |
dc.subject | drilling project | en |
dc.subject | Earthquakes | en |
dc.subject | Rock mechanics | en |
dc.title | Gouge graphitization and dynamic fault weakening during the 2008 Mw 7.9 Wenchuan earthquake | en |
dc.type | article | en |
dc.description.status | Published | en |
dc.type.QualityControl | Peer-reviewed | en |
dc.description.pagenumber | 47-50 | en |
dc.subject.INGV | 04. Solid Earth::04.01. Earth Interior::04.01.04. Mineral physics and properties of rocks | en |
dc.subject.INGV | 04. Solid Earth::04.04. Geology::04.04.06. Rheology, friction, and structure of fault zones | en |
dc.subject.INGV | 04. Solid Earth::04.06. Seismology::04.06.01. Earthquake faults: properties and evolution | en |
dc.subject.INGV | 04. Solid Earth::04.07. Tectonophysics::04.07.07. Tectonics | en |
dc.identifier.doi | 10.1130/G34862.1 | en |
dc.description.obiettivoSpecifico | 4T. Fisica dei terremoti e scenari cosismici | en |
dc.description.journalType | JCR Journal | en |
dc.description.fulltext | reserved | en |
dc.relation.issn | 0091-7613 | en |
dc.relation.eissn | 1943-2682 | en |
dc.contributor.author | Kuo, L. | en |
dc.contributor.author | Li, H. | en |
dc.contributor.author | Smith, S. A. F. | en |
dc.contributor.author | Di Toro, G. | en |
dc.contributor.author | Suppe, J. | en |
dc.contributor.author | Song, S | en |
dc.contributor.author | Nielsen, S. B. | en |
dc.contributor.author | Sheu, H. | en |
dc.contributor.author | Si, J. | en |
dc.contributor.department | National Taiwan University, 10617 Taipei, Taiwan | en |
dc.contributor.department | State Key Laboratory of Continental Tectonic and Dynamics, Institute of Geology, Chinese Academy of Geological Sciences, Beijing 100037, China | en |
dc.contributor.department | Istituto Nazionale di Geofisica e Vulcanologia, Sezione Roma1, Roma, Italia | en |
dc.contributor.department | Istituto Nazionale di Geofisica e Vulcanologia, Sezione Roma1, Roma, Italia | en |
dc.contributor.department | National Taiwan University, 10617 Taipei, Taiwan | en |
dc.contributor.department | National Taiwan University, 10617 Taipei, Taiwan | en |
dc.contributor.department | Istituto Nazionale di Geofisica e Vulcanologia, Sezione Roma1, Roma, Italia | en |
dc.contributor.department | National Synchrotron Radiation Research Center, 30076 Hsinchu, Taiwan | en |
dc.contributor.department | State Key Laboratory of Continental Tectonic and Dynamics, Institute of Geology, Chinese Academy of Geological Sciences, Beijing 100037, China | en |
item.openairetype | article | - |
item.cerifentitytype | Publications | - |
item.languageiso639-1 | en | - |
item.grantfulltext | reserved | - |
item.openairecristype | http://purl.org/coar/resource_type/c_18cf | - |
item.fulltext | With Fulltext | - |
crisitem.author.dept | Istituto Nazionale di Geofisica e Vulcanologia (INGV), Sezione Roma1, Roma, Italia | - |
crisitem.author.dept | Istituto Nazionale di Geofisica e Vulcanologia (INGV), Sezione Roma1, Roma, Italia | - |
crisitem.author.dept | National Taiwan University, 10617 Taipei, Taiwan | - |
crisitem.author.dept | National Taiwan University, 10617 Taipei, Taiwan | - |
crisitem.author.dept | Durham University, Durham, UK | - |
crisitem.author.dept | National Synchrotron Radiation Research Center, 30076 Hsinchu, Taiwan | - |
crisitem.author.orcid | 0000-0002-6618-3474 | - |
crisitem.author.orcid | 0000-0002-9214-2932 | - |
crisitem.author.parentorg | Istituto Nazionale di Geofisica e Vulcanologia | - |
crisitem.author.parentorg | Istituto Nazionale di Geofisica e Vulcanologia | - |
crisitem.classification.parent | 04. Solid Earth | - |
crisitem.classification.parent | 04. Solid Earth | - |
crisitem.classification.parent | 04. Solid Earth | - |
crisitem.classification.parent | 04. Solid Earth | - |
crisitem.department.parentorg | Istituto Nazionale di Geofisica e Vulcanologia | - |
crisitem.department.parentorg | Istituto Nazionale di Geofisica e Vulcanologia | - |
crisitem.department.parentorg | Istituto Nazionale di Geofisica e Vulcanologia | - |
Appears in Collections: | Article published / in press |
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