caa a22 4500 606150226 CHVBK 20210128100538.0 cr unu---uuuuu 210128e20150301xx s 000 0 eng 10.1007/s00531-014-1091-9 doi (NATIONALLICENCE)springer-10.1007/s00531-014-1091-9 Extensional salt tectonics in the partially inverted Cotiella post-rift basin (south-central Pyrenees): structure and evolution [Elektronische Daten] [Berta López-Mir, Josep Muñoz, Jesús García-Senz] The Cotiella Massif in the south-central Pyrenees hosts upper Cretaceous gravity-driven extensional faults which were developed in the Bay of Biscay-Pyrenean paleorift margin of the Atlantic Ocean. They accommodate up to 6km of post-rift carbonates above relict upper Triassic salt. Subsequent Pyrenean contractional deformation preserved the main extensional features, but most of the upper Triassic salt was expulsed and then dissolved, leaving little indications of the original salt volume. Nonetheless, several distinctive salt-related features are still recognizable both at outcrop and at basin scale, providing an exposed analogue for salt-floored extensional basins developed on passive margins. Based on field research, we re-interpret the tectonic evolution of the area and suggest that passive diapirs were coeval with gravity-driven extension during the development of the Cotiella basin. The given interpretations are supported with detailed geological maps, original structural data, cross sections and outcrop photographs. The discovery of previously unknown post-rift salt structures in the Cotiella Massif is an extra element to consider in the paleogeographic reconstructions of the upper Cretaceous passive margin of the Bay of Biscay-Pyrenean realm and consequently helps in our understanding of the evolution of current Atlantic-type margins. Springer-Verlag Berlin Heidelberg, 2014 Cotiella basin nationallicence Pyrenees nationallicence Post-rift basin nationallicence Salt tectonics nationallicence Extensional diapirs nationallicence Passive margins nationallicence López-Mir Berta CASP, West Building, 181A Huntingdon Road, CB3 0DH, Cambridge, UK aut Muñoz Josep Departament de Geodinàmica i Geofísica, Facultat de Geologia, Institut Geomodels, Universitat de Barcelona, C/Martí i Franquès s/n, Zona universitària de Pedralbes, 08028, Barcelona, Spain aut García-Senz Jesús Instituto Geológico y Minero de España (IGME), La Calera 1, 28760, Tres Cantos, Madrid, Spain aut International Journal of Earth Sciences Springer Berlin Heidelberg 104/2(2015-03-01), 419-434 1437-3254 104:2<419 2015 104 531 https://doi.org/10.1007/s00531-014-1091-9 text/html Onlinezugriff via DOI BK010053 XK010053 XK010000 Metadata rights reserved Springer special CC-BY-NC licence nationallicence 1 research-article jats NATIONALLICENCE NATIONALLICENCE NL-springer NATIONALLICENCE 856 40 https://doi.org/10.1007/s00531-014-1091-9 text/html Onlinezugriff via DOI NATIONALLICENCE 700 1- López-Mir Berta CASP, West Building, 181A Huntingdon Road, CB3 0DH, Cambridge, UK aut NATIONALLICENCE 700 1- Muñoz Josep Departament de Geodinàmica i Geofísica, Facultat de Geologia, Institut Geomodels, Universitat de Barcelona, C/Martí i Franquès s/n, Zona universitària de Pedralbes, 08028, Barcelona, Spain aut NATIONALLICENCE 700 1- García-Senz Jesús Instituto Geológico y Minero de España (IGME), La Calera 1, 28760, Tres Cantos, Madrid, Spain aut NATIONALLICENCE 773 0- International Journal of Earth Sciences Springer Berlin Heidelberg 104/2(2015-03-01), 419-434 1437-3254 104:2<419 2015 104 531