118785 20221006120648.0 doi 10.1007/s00531-016-1349-5 sideral 98460 ART-2017-98460 eng Casas-Sainz, A. Universidad de Zaragoza (orcid)0000-0003-3652-3527 Multidisciplinary approach to constrain kinematics of fault zones at shallow depths: a case study from the Cameros–Demanda thrust (North Spain) 2017 Thrusting at shallow depths often precludes analysis by means of structural indicators effective in other geological contexts (e.g., mylonites, sheath folds, shear bands). In this paper, a combination of techniques (including structural analysis, magnetic methods, as anisotropy of magnetic susceptibility and paleomagnetism, and paleothermometry) is used to define thrusting conditions, deformation, and transport directions in the Cameros–Demanda thrust (North Spain). Three outcrops were analyzed along this intraplate, large-scale major structure having 150 km of outcropping length, 30 km of maximum horizontal displacement, and 5 km of vertical throw. Results obtained by means of the different techniques are compared with data derived from cross sections and stratigraphic analysis. Mixed-layer illite–smectite and vitrinite reflectance indicating deep diagenetic conditions and mature stage of hydrocarbon generation suggests shallow depths during deformation, thus confirming that the protolith for most of the fault rocks is the footwall of the main thrust. Kinematic indicators (foliation, S/C structures, and slickenside striations) indicate altogether a dominant NNW movement of the hanging wall in the western zone and NE in the eastern zone of the thrust, thus implying strain partitioning between different branches of the main thrust. The study of AMS in fault rocks (nearly 400 samples of fault gouge, breccia, and microbreccia) indicates that the strike of magnetic foliation is oblique to the transport direction and that the magnetic lineation parallelizes the projection of the transport direction onto the kmax/kint plane in sites with strong shear deformation. Paleomagnetism applied to fault rocks indicates the existence of remagnetizations linked to thrusting, in spite of the shallow depth for deformation, and a strong deformation or scattering of the magnetic remanence vectors in the fault zone. The application of the described techniques and consistency of results indicate that the proposed multidisciplinary approach is useful when dealing with thrusts at shallow crustal levels. Access copy available to the general public Unrestricted info:eu-repo/grantAgreement/ES/MINECO/CGL2012-38481 info:eu-repo/grantAgreement/ES/MINECO/CGL2013-42670-P info:eu-repo/grantAgreement/ES/UZ/UZ2012-CIE-11 info:eu-repo/semantics/openAccess All rights reserved http://www.europeana.eu/rights/rr-f/ 2.276 2017 GEOSCIENCES, MULTIDISCIPLINARY 81 / 189 = 0.429 2017 Q2 T2 1.125 2017 Earth and Planetary Sciences (miscellaneous) 2017 Q1 info:eu-repo/semantics/article info:eu-repo/semantics/acceptedVersion Román-Berdiel, T. Universidad de Zaragoza (orcid)0000-0002-9743-8695 Oliva-Urcia, B. (orcid)0000-0003-1563-6434 García-Lasanta, C. (orcid)0000-0003-4441-4240 Villalaín, J. J. Aldega, L. Corrado, S. Caricchi, C. Invernizzi, C. Osácar, M. C. Universidad de Zaragoza (orcid)0000-0002-5246-366X 2000 428 Universidad de Zaragoza Dpto. Ciencias de la Tierra Área Geodinámica Interna 2000 120 Universidad de Zaragoza Dpto. Ciencias de la Tierra Área Cristalografía Mineralog. 106, 3 (2017), 1023-1055 Int. j. earth sci. International Journal of Earth Sciences 1437-3254 2434901 http://zaguan.unizar.es/record/118785/files/texto_completo.pdf Postprint 1974156 http://zaguan.unizar.es/record/118785/files/texto_completo.jpg?subformat=icon icon Postprint oai:zaguan.unizar.es:118785 articulos driver 2022-10-06-10:02:43 ARTICLE