Please use this identifier to cite or link to this item: http://hdl.handle.net/2445/171754
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dc.contributor.authorCruset Segura, David-
dc.contributor.authorVergés i Masip, Jaume-
dc.contributor.authorAlbert, R.-
dc.contributor.authorGerdes, A.-
dc.contributor.authorBenedicto Esteban, Antonio-
dc.contributor.authorCantero, Irene-
dc.contributor.authorTravé i Herrero, Anna-
dc.date.accessioned2020-11-05T09:10:01Z-
dc.date.available2021-09-07T05:10:19Z-
dc.date.issued2020-09-07-
dc.identifier.issn0016-7649-
dc.identifier.urihttp://hdl.handle.net/2445/171754-
dc.description.abstractIt is difficult to quantify the timing of the deformation processes in brittle fold-thrust belts because minerals suitable for dating and well-preserved growth strata sediments are scarce or absent. Here, we quantify the duration of thrust sheet emplacement and shortening rates in the SE Pyrenean thrust sequence using U-Pb dating of fracture-filling calcites. The obtained U-Pb dates reveal a minimum duration for the emplacement of each thrust unit (18.7 Ma for the Bóixols-Upper Pedraforca, 11.6 Ma for the Lower Pedraforca and 14.3 Ma for the Cadí thrust sheets) and show that piggy-back thrusting was accompanied by post-emplacement deformation of the upper thrust sheets above the lower sheets during their south-directed tectonic transport. We calculated shortening rates of 0.6, 3.1 and 1.1 mm a−1 from the older to younger emplaced thrust sheets. Our results also reveal the formation of local normal faults during the late Oligocene as a result of the late stages of compression and exhumation in the SE Pyrenees. We observed that temperatures >110 °C could be a limiting factor when applying the U-Pb dating method.-
dc.format.extent35 p.-
dc.format.mimetypeapplication/pdf-
dc.language.isoeng-
dc.publisherThe Geological Society-
dc.relation.isformatofVersió postprint del document publicat a: https://doi.org/10.1144/jgs2020-014-
dc.relation.ispartofJournal of the Geological Society, 2020, vol. 177, p. 1186-1196-
dc.relation.urihttps://doi.org/10.1144/jgs2020-014-
dc.rights(c) The Geological Society, 2020-
dc.subject.classificationCalcita-
dc.subject.classificationFalles (Geologia)-
dc.subject.classificationPirineus-
dc.subject.otherCalcite-
dc.subject.otherFaults (Geology)-
dc.subject.otherPyrenees-
dc.titleQuantifying deformation processes in the SE Pyrenees using U-Pb dating of fracture-filling calcites-
dc.typeinfo:eu-repo/semantics/article-
dc.typeinfo:eu-repo/semantics/acceptedVersion-
dc.identifier.idgrec704226-
dc.date.updated2020-11-05T09:10:01Z-
dc.rights.accessRightsinfo:eu-repo/semantics/openAccess-
Appears in Collections:Articles publicats en revistes (Mineralogia, Petrologia i Geologia Aplicada)

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