Please use this identifier to cite or link to this item:
http://hdl.handle.net/2122/5815
DC Field | Value | Language |
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dc.contributor.authorall | Collettini, C.; University of Perugia | en |
dc.contributor.authorall | Viti, C.; University of Siena | en |
dc.contributor.authorall | Smith, S .A. F; Istituto Nazionale di Geofisica e Vulcanologia, Sezione Roma1, Roma, Italia | en |
dc.contributor.authorall | Holdsworth, R. E.; University of Durham | en |
dc.date.accessioned | 2010-01-22T15:56:05Z | en |
dc.date.available | 2010-01-22T15:56:05Z | en |
dc.date.issued | 2009-06 | en |
dc.identifier.uri | http://hdl.handle.net/2122/5815 | en |
dc.description.abstract | Fault zones that slip when oriented at large angles to the maximum compressive stress, i.e., weak faults, represent a signifi cant mechanical problem. Here we document fault weakening induced by dissolution of dolomite and subsequent precipitation of calcite + abundant talc along a low-angle normal fault. Within the fault core, talc forms an interconnected foliated network that deforms by frictional sliding along 50–200-nm-thick talc lamellae. The low frictional strength of talc, combined with dissolution-precipitation creep, can explain slip on low-angle normal faults. In addition, the stable sliding behavior of talc is consistent with the absence of strong earthquakes along such structures. The development of phyllosilicates such as talc by fl uid-assisted processes within fault zones cutting Mg-rich carbonate sequences may be widespread, leading to profound and long-term fault weakness. | en |
dc.language.iso | English | en |
dc.publisher.name | Geological Society of America | en |
dc.relation.ispartof | Geology | en |
dc.relation.ispartofseries | 6/37 (2009) | en |
dc.subject | Fault | en |
dc.subject | Weakening | en |
dc.subject | Low-Angle | en |
dc.subject | Talc | en |
dc.title | Development of interconnected talc networks and weakening of continental low-angle normal faults | en |
dc.type | article | en |
dc.description.status | Published | en |
dc.type.QualityControl | Peer-reviewed | en |
dc.description.pagenumber | 567-570 | en |
dc.subject.INGV | 04. Solid Earth::04.04. Geology::04.04.06. Rheology, friction, and structure of fault zones | en |
dc.identifier.doi | 10.1130/G25645A.1 | en |
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dc.description.obiettivoSpecifico | 3.3. Geodinamica e struttura dell'interno della Terra | en |
dc.description.journalType | JCR Journal | en |
dc.description.fulltext | reserved | en |
dc.contributor.author | Collettini, C. | en |
dc.contributor.author | Viti, C. | en |
dc.contributor.author | Smith, S .A. F | en |
dc.contributor.author | Holdsworth, R. E. | en |
dc.contributor.department | University of Perugia | en |
dc.contributor.department | University of Siena | en |
dc.contributor.department | Istituto Nazionale di Geofisica e Vulcanologia, Sezione Roma1, Roma, Italia | en |
dc.contributor.department | University of Durham | en |
item.openairetype | article | - |
item.cerifentitytype | Publications | - |
item.languageiso639-1 | en | - |
item.grantfulltext | restricted | - |
item.openairecristype | http://purl.org/coar/resource_type/c_18cf | - |
item.fulltext | With Fulltext | - |
crisitem.author.dept | Università La Sapienza | - |
crisitem.author.dept | Dipartimento di Scienze della Terra Università degli Studi di Siena, | - |
crisitem.author.dept | Istituto Nazionale di Geofisica e Vulcanologia (INGV), Sezione Roma1, Roma, Italia | - |
crisitem.author.dept | University of Durham | - |
crisitem.author.parentorg | Istituto Nazionale di Geofisica e Vulcanologia | - |
crisitem.classification.parent | 04. Solid Earth | - |
crisitem.department.parentorg | Istituto Nazionale di Geofisica e Vulcanologia | - |
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