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http://hdl.handle.net/2445/171754
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DC Field | Value | Language |
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dc.contributor.author | Cruset Segura, David | - |
dc.contributor.author | Vergés i Masip, Jaume | - |
dc.contributor.author | Albert, Richard | - |
dc.contributor.author | Gerdes, Axel | - |
dc.contributor.author | Benedicto Esteban, Antonio | - |
dc.contributor.author | Cantero, Irene | - |
dc.contributor.author | Travé i Herrero, Anna | - |
dc.date.accessioned | 2020-11-05T09:10:01Z | - |
dc.date.available | 2021-09-07T05:10:19Z | - |
dc.date.issued | 2020-09-07 | - |
dc.identifier.issn | 0016-7649 | - |
dc.identifier.uri | http://hdl.handle.net/2445/171754 | - |
dc.description.abstract | It 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.extent | 35 p. | - |
dc.format.mimetype | application/pdf | - |
dc.language.iso | eng | - |
dc.publisher | The Geological Society | - |
dc.relation.isformatof | Versió postprint del document publicat a: https://doi.org/10.1144/jgs2020-014 | - |
dc.relation.ispartof | Journal of the Geological Society, 2020, vol. 177, p. 1186-1196 | - |
dc.relation.uri | https://doi.org/10.1144/jgs2020-014 | - |
dc.rights | (c) The Geological Society, 2020 | - |
dc.source | Articles publicats en revistes (Mineralogia, Petrologia i Geologia Aplicada) | - |
dc.subject.classification | Calcita | - |
dc.subject.classification | Falles (Geologia) | - |
dc.subject.classification | Pirineus | - |
dc.subject.other | Calcite | - |
dc.subject.other | Faults (Geology) | - |
dc.subject.other | Pyrenees | - |
dc.title | Quantifying deformation processes in the SE Pyrenees using U-Pb dating of fracture-filling calcites | - |
dc.type | info:eu-repo/semantics/article | - |
dc.type | info:eu-repo/semantics/acceptedVersion | - |
dc.identifier.idgrec | 704226 | - |
dc.date.updated | 2020-11-05T09:10:01Z | - |
dc.rights.accessRights | info:eu-repo/semantics/openAccess | - |
Appears in Collections: | Articles publicats en revistes (Mineralogia, Petrologia i Geologia Aplicada) |
Files in This Item:
File | Description | Size | Format | |
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704226.pdf | 2.79 MB | Adobe PDF | View/Open |
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