78325 20200117221654.0 doi 10.1016/j.tecto.2018.02.013 sideral 105398 ART-2018-105398 eng (orcid)0000-0003-3652-3527 Casas-Sainz, A.M. Universidad de Zaragoza Strain indicators and magnetic fabric in intraplate fault zones: Case study of Daroca thrust, Iberian Chain, Spain 2018 Access copy available to the general public Unrestricted Anisotropy of magnetic susceptibility (AMS) has been applied to the study of shallow fault zones, although interpretation of the results requires establishing clear relationships between petrofabric and magnetic features, magnetic behaviour of fault rocks, and an extensive knowledge of P-T conditions. In this work, we demonstrate that magnetic methods can be applied to the study of heterogeneous fault zones, provided that a series of requisites are met. A major fault zone within the Iberian plate (Daroca thrust), showing transpressional movements during Cenozoic time was chosen for this purpose, because of the exceptional outcrops of fault gouge and microbreccia and its relevance within the context of the northeastern Iberian Plate. Magnetic fabrics were analysed and the results were compared with foliation and S-C structures measured within the fault zone. Clay mineral assemblages suggest maximum burial depths shallower than 2 km (<60–70 °C) for fault rocks in the footwall of the Daroca thrust. The orientation of the AMS axes is consistent with mesostructural strain indicators: kmin parallels the mean pole to S, or it is intermediate between S and C poles; kmax is oriented at a high angle (nearly orthogonal in overall) to the transport direction, which can be explained from both deformational and mineralogical controls. Both magnetic fabrics and kinematic indicators are consistent with a reverse movement for most of the fault zone. info:eu-repo/grantAgreement/ES/MINECO/CGL2012-35662 info:eu-repo/grantAgreement/ES/MINECO/CGL2013-42670-P info:eu-repo/grantAgreement/ES/UZ/UZ2012-CIE-11 info:eu-repo/semantics/openAccess by-nc-nd http://creativecommons.org/licenses/by-nc-nd/3.0/es/ 2.764 2018 GEOCHEMISTRY & GEOPHYSICS 34 / 84 = 0.405 2018 Q2 T2 1.481 2018 Geophysics 2018 Q1 Earth-Surface Processes 2018 Q1 info:eu-repo/semantics/article info:eu-repo/semantics/acceptedVersion (orcid)0000-0001-6110-1081 Gil-Imaz, A. Universidad de Zaragoza (orcid)0000-0003-1412-5245 Simón, J.L. Universidad de Zaragoza Izquierdo-Llavall, E. Aldega, L. (orcid)0000-0002-9743-8695 Román-Berdiel, T. Universidad de Zaragoza (orcid)0000-0002-5246-366X Osácar, M.C. Universidad de Zaragoza (orcid)0000-0002-1460-1590 Pueyo-Anchuela, Ó. Universidad de Zaragoza Ansón, M. (orcid)0000-0003-4441-4240 García-Lasanta, C. Corrado, S. Invernizzi, C. Caricchi, C. 2000 655 Universidad de Zaragoza Dpto. Ciencias de la Tierra Área Paleontología 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. 730 (2018), 29-47 Tectonophysics TECTONOPHYSICS 0040-1951 2003311 http://zaguan.unizar.es/record/78325/files/texto_completo.pdf Postprint 56653 http://zaguan.unizar.es/record/78325/files/texto_completo.jpg?subformat=icon icon Postprint oai:zaguan.unizar.es:78325 articulos driver 2020-01-17-22:10:27 ARTICLE