Geochronological and geochemical data from fracture-filling calcites from the Lower Pedraforca thrust sheet (SE Pyrenees)
David Cruset,
Irene Cantarero,
Antonio Benedicto,
Cédric M. John,
Jaume Vergés,
Richard Albert,
Axel Gerdes,
Anna Travé
Affiliations
David Cruset
Departament de Mineralogia, Petrologia i Geologia Aplicada, Facultat de Ciències de la Terra, Universitat de Barcelona, (UB), Martí i Franquès s/n, 08028 Barcelona, Spain; Group of Dynamics of the Lithosphere (GDL). Institut de Ciències de la Terra Jaume Almera, ICTJA-CSIC, Lluís Solé i Sabaris s/n, 08028 Barcelona, Spain; Corresponding author at: Group of Dynamics of the Lithosphere (GDL). Institut de Ciències de la Terra Jaume Almera, ICTJA-CSIC, Lluís Solé i Sabaris s/n, 08028 Barcelona, Spain.
Irene Cantarero
Departament de Mineralogia, Petrologia i Geologia Aplicada, Facultat de Ciències de la Terra, Universitat de Barcelona, (UB), Martí i Franquès s/n, 08028 Barcelona, Spain
Antonio Benedicto
UMR Geops, Université Paris Sud, 91405 Orsay, France
Cédric M. John
Department of Earth Science and Engineering, Imperial College London, SW7 2BP, United Kingdom
Jaume Vergés
Group of Dynamics of the Lithosphere (GDL). Institut de Ciències de la Terra Jaume Almera, ICTJA-CSIC, Lluís Solé i Sabaris s/n, 08028 Barcelona, Spain
Richard Albert
Department of Geosciences, Goethe-University Frankfurt, 60438 Frankfurt am Main, Germany; Frankfurt Isotope and Element Research Center (FIERCE), Goethe-University Frankfurt, Frankfurt am Main, Germany
Axel Gerdes
Department of Geosciences, Goethe-University Frankfurt, 60438 Frankfurt am Main, Germany; Frankfurt Isotope and Element Research Center (FIERCE), Goethe-University Frankfurt, Frankfurt am Main, Germany
Anna Travé
Departament de Mineralogia, Petrologia i Geologia Aplicada, Facultat de Ciències de la Terra, Universitat de Barcelona, (UB), Martí i Franquès s/n, 08028 Barcelona, Spain
U-Pb dating using laser ablation-inductively coupled plasma mass spectrometry (LA-ICP-MS), δ13C, δ18O, clumped isotopes and 87Sr/86Sr analysis, and electron microprobe have been applied to fracture-filling calcites and host carbonates from the Lower Pedraforca thrust sheet, in the SE Pyrenees. These data are used to determine the type and origin of migrating fluids, the evolution of the palaeohydrological system and timing of fracturing during the emplacement of this thrust sheet, as described in the article “From hydroplastic to brittle deformation: controls on fluid flow in fold and thrust belts. Insights from the Lower Pedraforca thrust sheet (SE Pyrenees)” – Marine and Petroleum Geology (2020). The integration of these data is also used to compare the fluid flow evolution of the Southern Pyrenees with that of other orogens worldwide and to generate a fluid flow model in fold and thrust belts. At a more local scale, the U-Pb dataset provides new absolute ages recording the deformation in the Lower Pedraforca thrust sheet, which was previously dated by means of indirect methods such as biostratigraphy of marine sediments and magnetostratigraphy of continental deposits.
