Please use this identifier to cite or link to this item: http://hdl.handle.net/2122/11914
DC FieldValueLanguage
dc.date.accessioned2018-07-26T08:32:07Z-
dc.date.available2018-07-26T08:32:07Z-
dc.date.issued2018-
dc.identifier.urihttp://hdl.handle.net/2122/11914-
dc.description.abstractThe extensional Val Roveto Fault, which is the longest exhumed potentially-seismogenic structure of central Apennines, Italy, is examined to constrain earthquake-related fluid circulation and fluid sources within shallow carbonate-hosted faults. The study focuses on fault-related comb and slip-parallel veins that are calcite-filled and cut through the principal surface of the Val Roveto Fault. We observe multiple crack-and-seal events characterized by several veining episodes, probably related to different slip increments along the fault plane. We show that vein calcite precipitated in Late Pleistocene time below the present-day outcrop level at a maximum depth of ∼350 m and temperatures between 32 and 64◦C from meteoric-derived fluids modified by reactions with crustal rocks and with a mantle contribution (up to ∼39%). The observed warm temperatures are not compatible with a shallow (≤∼350m) precipitation depth, which, in this region, is dominated by circulation of cold meteoric water and/or shallow groundwater. Based on structural–geochemical data, we propose that deep-seated crust–mantle-derived warm fluids were squeezed upward during earthquakes and were hence responsible for calcite precipitation at shallow depths in co-seismic comb and slip-parallel fractures. As comb-and slip-parallel veins are rather common, particularly along seismogenic extensional faults, we suggest that further studies are necessary to test whether these veins are often of co-seismic origin. If so, they may become a unique and irreplaceable tool to unravel the seismic history of hazardous active faults.en_US
dc.language.isoengen_US
dc.relation.ispartofEarth and Planetary Science Lettersen_US
dc.relation.ispartofseries/498 (2018)en_US
dc.titleCrustal-scale fluid circulation and co-seismic shallow comb-veining along the longest normal fault of the central Apennines, Italyen_US
dc.typearticle-
dc.description.statusPublisheden_US
dc.type.QualityControlPeer-revieweden_US
dc.description.pagenumber152–168en_US
dc.identifier.doi10.1016/j.epsl.2018.06.013en_US
dc.description.obiettivoSpecifico2T. Deformazione crostale attivaen_US
dc.description.journalTypeJCR Journalen_US
dc.contributor.authorSmeraglia, Luca-
dc.contributor.authorBernasconi, Stefano-
dc.contributor.authorBerra, Fabrizio-
dc.contributor.authorBilli, Andrea-
dc.contributor.authorBoschi, Chiara-
dc.contributor.authorCaracausi, Antonio-
dc.contributor.authorCarminati, Eugenio-
dc.contributor.authorCastorina, Francesca-
dc.contributor.authorDoglioni, Carlo-
dc.contributor.authorItaliano, Francesco-
dc.contributor.authorRizzo, Andrea Luca-
dc.contributor.authorTonguç Uysal, I.-
dc.contributor.authorZhao, Jian-xin-
dc.contributor.departmentIstituto Nazionale di Geofisica e Vulcanologia (INGV), Sezione Palermo, Palermo, Italiaen_US
dc.contributor.departmentIstituto Nazionale di Geofisica e Vulcanologia (INGV), Sezione AC, Roma, Italiaen_US
dc.contributor.departmentIstituto Nazionale di Geofisica e Vulcanologia (INGV), Sezione Palermo, Palermo, Italiaen_US
dc.contributor.departmentIstituto Nazionale di Geofisica e Vulcanologia (INGV), Sezione Palermo, Palermo, Italiaen_US
item.fulltextWith Fulltext-
item.grantfulltextrestricted-
crisitem.author.deptDepartment of Geological Engineering, Middle East Technical University, Ankara, Turkey-
crisitem.author.deptQueensland Geothermal Energy Centre of Excellence, The University of Queensland, Australia-
crisitem.author.deptIstituto Nazionale di Geofisica e Vulcanologia (INGV), Sezione Palermo, Palermo, Italia-
crisitem.author.deptIstituto Nazionale di Geofisica e Vulcanologia (INGV), Sezione Palermo, Palermo, Italia-
crisitem.author.deptIstituto Nazionale di Geofisica e Vulcanologia (INGV), Sezione Palermo, Palermo, Italia-
crisitem.author.deptIstituto Nazionale di Geofisica e Vulcanologia (INGV), Sezione AC, Roma, Italia-
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.author.parentorgIstituto Nazionale di Geofisica e Vulcanologia-
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