000162754 001__ 162754
000162754 005__ 20251017144623.0
000162754 0247_ $$2doi$$a10.1016/j.tecto.2025.230901
000162754 0248_ $$2sideral$$a145243
000162754 037__ $$aART-2025-145243
000162754 041__ $$aeng
000162754 100__ $$0(orcid)0000-0002-9743-8695$$aRomán-Berdiel, T.$$uUniversidad de Zaragoza
000162754 245__ $$aComparing magnetic fabrics in in-basin and out-of-basin domains: The Mesozoic western Cameros Basin (N Spain)
000162754 260__ $$c2025
000162754 5060_ $$aAccess copy available to the general public$$fUnrestricted
000162754 5203_ $$aAnisotropy of magnetic susceptibility (AMS) is a very sensitive and accurate technique for determining deformation in rocks that show no other markers of deformation. In the Mesozoic-Cenozoic history of the Iberian plate, two stages have been clearly defined: an extensional period in which large sedimentary basins were generated (Late Jurassic-Early Cretaceous), and a tectonic inversion stage during the Cenozoic compression. However, details on the development and evolution of these stages, as well as the transition from extensional to compressional regime are not yet well understood. The western Cameros Basin provides the opportunity for testing the applicability of magnetic fabric to determine the tectonic regime at the transition between the syn-rift and the post-rift sequences in an area close to the out-of-basin domain and therefore, suitable for recording the far-field and the near-field constraints. Furthermore, the influence of the subsequent inversion on the magnetic fabrics in these two sequences can be also discussed. In this work, we have focused on the Jurassic (mostly limestones), Lower Cretaceous (mostly shales) and Upper Cretaceous (mostly limestones) rocks, taking a total of 575 samples from 47 sites. AMS results show the record of the Alpine compressional stage for most of the sites of the post-rift materials, while the syn-rift materials record a NE-SW stretching direction. This indicates that the extensional tectonic imprint remains in in-basin domains even after compression (and probably layer parallel shortening) provided that the intensity of extensional deformation is significant (i. e. linked to basin formation). Conversely, out-of-basin domains generally record compressional fabrics, both in the thinned syn-rift and post-rift sequences. Another key point in this work is the analysis of the out-of-phase anisotropy of magnetic susceptibility, which has allowed to improve to some extent the definition of the magnetic fabric in the, a priori, unfavorable lithologies for AMS studies, such as the limestones of the Jurassic and Upper Cretaceous.
000162754 536__ $$9info:eu-repo/grantAgreement/ES/DGA/E32-23R$$9info:eu-repo/grantAgreement/ES/MICINN/PID2019-108753GB-C21$$9info:eu-repo/grantAgreement/ES/MICINN/PID2019-108753GB-C22
000162754 540__ $$9info:eu-repo/semantics/openAccess$$aby-nc-nd$$uhttps://creativecommons.org/licenses/by-nc-nd/4.0/deed.es
000162754 655_4 $$ainfo:eu-repo/semantics/article$$vinfo:eu-repo/semantics/publishedVersion
000162754 700__ $$0(orcid)0000-0003-1563-6434$$aOliva-Urcia, B.$$uUniversidad de Zaragoza
000162754 700__ $$aTorres, S.
000162754 700__ $$aYenes, L.
000162754 700__ $$aVillalaín, J.J.
000162754 700__ $$aMarcén, M.
000162754 700__ $$0(orcid)0000-0003-3652-3527$$aCasas-Sainz, A.M.$$uUniversidad de Zaragoza
000162754 7102_ $$12000$$2428$$aUniversidad de Zaragoza$$bDpto. Ciencias de la Tierra$$cÁrea Geodinámica Interna
000162754 773__ $$g914 (2025), 230901 [20 pp.]$$pTectonophysics$$tTectonophysics$$x0040-1951
000162754 8564_ $$s15739894$$uhttps://zaguan.unizar.es/record/162754/files/texto_completo.pdf$$yVersión publicada
000162754 8564_ $$s2507723$$uhttps://zaguan.unizar.es/record/162754/files/texto_completo.jpg?subformat=icon$$xicon$$yVersión publicada
000162754 909CO $$ooai:zaguan.unizar.es:162754$$particulos$$pdriver
000162754 951__ $$a2025-10-17-14:22:50
000162754 980__ $$aARTICLE