000084344 001__ 84344
000084344 005__ 20220908120452.0
000084344 0247_ $$2doi$$a10.1016/j.jsg.2018.09.008
000084344 0248_ $$2sideral$$a107646
000084344 037__ $$aART-2018-107646
000084344 041__ $$aeng
000084344 100__ $$aMarcén, M.$$uUniversidad de Zaragoza
000084344 245__ $$aKinematics and strain distribution in an orogen-scale shear zone: Insights from structural analyses and magnetic fabrics in the Gavarnie thrust, Pyrenees
000084344 260__ $$c2018
000084344 5060_ $$aAccess copy available to the general public$$fUnrestricted
000084344 5203_ $$aThis work aims to characterize the Gavarnie thrust, one of the large-scale thrusts that define the Alpine structure of the west-central sector of the Pyrenees. A detailed comparison of structural analysis and magnetic fabrics is carried out for the Paleozoic phyllonites of the Gavarnie thrust, in order to decipher strain distribution and transport direction. The AMS at room (RT-AMS) and low (LT-AMS) temperature and the AIRM can be correlated with the structural patterns: kmin axes are mainly parallel to the pole of the S, C or C' planes and kmax axes are parallel to the transport direction and related to ductile S-C structures. Furthermore, the Pj-T changes across the shear zone characterize strain variations: larger Pj and T are found in the basal, most deformed part of the shear zone, and lower values are found where the interaction between Alpine and Variscan-related petrofabrics is stronger. We also interpret the reactivation of Variscan inherited fabrics within the Alpine shear zone. In spite of the heterogeneous strain, markers indicate a common, top-to-the-South (N190E) Alpine transport direction, which contrasts with the strong obliquity of the genetically-related structures developed in the Southern Mesozoic sedimentary cover. In this sense, our data suggest a complete decoupling between basement and cover units during the Alpine compression.
000084344 536__ $$9info:eu-repo/grantAgreement/ES/MINECO/BES-2014-070167$$9info:eu-repo/grantAgreement/ES/MINECO/CGL2013-42670-P
000084344 540__ $$9info:eu-repo/semantics/openAccess$$aby-nc-nd$$uhttp://creativecommons.org/licenses/by-nc-nd/3.0/es/
000084344 590__ $$a3.128$$b2018
000084344 591__ $$aGEOSCIENCES, MULTIDISCIPLINARY$$b49 / 195 = 0.251$$c2018$$dQ2$$eT1
000084344 592__ $$a1.331$$b2018
000084344 593__ $$aGeology$$c2018$$dQ1
000084344 655_4 $$ainfo:eu-repo/semantics/article$$vinfo:eu-repo/semantics/acceptedVersion
000084344 700__ $$0(orcid)0000-0003-3652-3527$$aCasas-Sainz, A.M.$$uUniversidad de Zaragoza
000084344 700__ $$0(orcid)0000-0002-9743-8695$$aRomán-Berdiel, T.$$uUniversidad de Zaragoza
000084344 700__ $$0(orcid)0000-0003-1563-6434$$aOliva-Urcia, B.
000084344 700__ $$0(orcid)0000-0002-1929-8850$$aSoto, R.
000084344 700__ $$aAldega, L.
000084344 7102_ $$12000$$2428$$aUniversidad de Zaragoza$$bDpto. Ciencias de la Tierra$$cÁrea Geodinámica Interna
000084344 773__ $$g117 (2018), 105-123$$pJ. struct. geol.$$tJournal of Structural Geology$$x0191-8141
000084344 8564_ $$s9760847$$uhttps://zaguan.unizar.es/record/84344/files/texto_completo.pdf$$yPostprint
000084344 8564_ $$s59911$$uhttps://zaguan.unizar.es/record/84344/files/texto_completo.jpg?subformat=icon$$xicon$$yPostprint
000084344 909CO $$ooai:zaguan.unizar.es:84344$$particulos$$pdriver
000084344 951__ $$a2022-09-08-11:53:57
000084344 980__ $$aARTICLE