Please use this identifier to cite or link to this item:
http://hdl.handle.net/2122/16098
DC Field | Value | Language |
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dc.date.accessioned | 2023-02-02T11:04:13Z | - |
dc.date.available | 2023-02-02T11:04:13Z | - |
dc.date.issued | 2022 | - |
dc.identifier.uri | http://hdl.handle.net/2122/16098 | - |
dc.description.abstract | We analyzed from meso-to microscale the chemical interaction (e.g., bleaching) between deep fluids and carbonate rocks in pelagic limestones exposed along the seismically active Gubbio normal fault (Northern Apennines), exhumed from ca. 2 km depth. Bleaching is enhanced by the exploitation of inherited stylolitic seams by fluids and is favored by the progressive leaching and mobilization of primary components (i.e., Ca, Fe, Pb, and Cu) and the precipitation of authigenic baryte due to temperature and/or redox potential contrast. Analysis of fluid inclusions trapped in calcite veins in the damage zone precipitated from a H2O–NaCl-bearing fluid(s), with low salinity (1.22–2.57 wt%NaCleq) and a range of trapping temperature between 107 ◦C and 185 ◦C, higher than the host rock peak T conditions. Analysis of fluid inclusions and noble gases from syn-kinematic calcite and mineralogy of altered rocks suggests a mixed contribution between crustal-derived fluids with diagenetic fluids containing sulphates and CO2. We speculate that bleaching is a by-product of the circulation of such aggressive fluids with mixed contributions, likely mobilized during seismic event(s) and injected into the damage zone at shallow depths. Such processes, affecting the chemical-physical properties of limestones, are generally underestimated and should be considered when modelling hydraulic connectivity in fractured carbonate reservoirs. | en_US |
dc.language.iso | English | en_US |
dc.publisher.name | Elsevier | en_US |
dc.relation.ispartof | Journal of Structural Geology | en_US |
dc.relation.ispartofseries | /161 (2022) | en_US |
dc.subject | fluids | en_US |
dc.subject | eartquakes | en_US |
dc.subject | Gubbio Fault | en_US |
dc.subject | noble gases | en_US |
dc.title | Chemical interaction driven by deep fluids in the damage zone of a seismogenic carbonate fault | en_US |
dc.type | article | en |
dc.description.status | Published | en_US |
dc.description.pagenumber | 104668 | en_US |
dc.identifier.doi | 10.1016/j.jsg.2022.104668 | en_US |
dc.description.obiettivoSpecifico | 9T. Geochimica dei fluidi applicata allo studio e al monitoraggio di aree sismiche | en_US |
dc.description.journalType | JCR Journal | en_US |
dc.relation.issn | 0191-8141 | en_US |
dc.contributor.author | Marchesini, Barbara | - |
dc.contributor.author | Carminati, Eugenio | - |
dc.contributor.author | Aldega, Luca | - |
dc.contributor.author | Mirabella, Francesco | - |
dc.contributor.author | Petrelli, Maurizio | - |
dc.contributor.author | Caracausi, Antonio | - |
dc.contributor.author | Barchi, Massimiliano Rinaldo | - |
dc.contributor.department | Istituto Nazionale di Geofisica e Vulcanologia (INGV), Sezione Palermo, Palermo, Italia | en_US |
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 degli Studi di Perugia | - |
crisitem.author.dept | Department of Physics and Geology, University of Perugia, Piazza dell’Università 1, 06123 Perugia, Italy | - |
crisitem.author.dept | Istituto Nazionale di Geofisica e Vulcanologia (INGV), Sezione Palermo, Palermo, Italia | - |
crisitem.author.dept | Università degli studi di Perugia | - |
crisitem.author.orcid | 0000-0002-4806-5271 | - |
crisitem.author.orcid | 0000-0001-6956-4742 | - |
crisitem.author.orcid | 0000-0003-2510-2890 | - |
crisitem.author.orcid | 0000-0003-0431-4341 | - |
crisitem.author.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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Marchesini et al., 2022_JStructurGeol.pdf | Restricted Paper | 22.26 MB | Adobe PDF | |
Manoscritto Febbraio_submited.pdf | 26.83 MB | Adobe PDF | View/Open |
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