000063387 001__ 63387
000063387 005__ 20190709135531.0
000063387 0247_ $$2doi$$a10.1016/j.jsg.2017.02.009
000063387 0248_ $$2sideral$$a98455
000063387 037__ $$aART-2017-98455
000063387 041__ $$aeng
000063387 100__ $$aCalvín, P.
000063387 245__ $$aDiachronous folding and cleavage in an intraplate setting (Central High Atlas, Morocco) determined through the study of remagnetizations
000063387 260__ $$c2017
000063387 5060_ $$aAccess copy available to the general public$$fUnrestricted
000063387 5203_ $$aRemagnetizations are common in intraplate basins. When remagnetizations occur at an intermediate stage between different tectonic processes, they can be used for paleo-geometrical reconstructions and relative dating of different structures. This has a particular interest in geological frameworks where other geological time markers are absent. In order to apply this methodology, it is necessary to calculate the regional remagnetization direction and subsequently to use this reference direction to restore the attitude of the beds at the moment of remagnetization acquisition. In this work, we use this methodology for dating a pervasive cleavage (whose time of formation is controversial) and the associated structures in the Central High Atlas (Morocco). Paleomagnetic directions from 64 sites were used to calculate the remagnetization direction (D = 330.9°, I = 35.1°, A/n = 6.107) which is coincident with the Albian-Cenomanian (ca. 100 M.a.) expected direction for NW Africa. This direction was used to restore the Mesozoic paleo-geometry of beds allowing us to analyze bedding orientation, cleavage and folding relationships between the present day and the Cretaceous geometry. After restoration we conclude that the development of cleavage post-dates remagnetization, being in relation with Cenozoic basin inversion. However, the paleo-geometry shows incipient folds at Cretaceous times, which can be related to an intra-Mesozoic compressional event.
000063387 536__ $$9info:eu-repo/grantAgreement/ES/MINECO/BES-2013-062988$$9info:eu-repo/grantAgreement/ES/MINECO/CGL2012-38481$$9info:eu-repo/grantAgreement/ES/MINECO/CGL2016-77560
000063387 540__ $$9info:eu-repo/semantics/openAccess$$aby-nc-nd$$uhttp://creativecommons.org/licenses/by-nc-nd/3.0/es/
000063387 590__ $$a2.622$$b2017
000063387 591__ $$aGEOSCIENCES, MULTIDISCIPLINARY$$b61 / 189 = 0.323$$c2017$$dQ2$$eT1
000063387 592__ $$a1.615$$b2017
000063387 593__ $$aGeology$$c2017$$dQ1
000063387 655_4 $$ainfo:eu-repo/semantics/article$$vinfo:eu-repo/semantics/acceptedVersion
000063387 700__ $$0(orcid)0000-0003-3652-3527$$aCasas-Sainz, A. M.$$uUniversidad de Zaragoza
000063387 700__ $$aVillalaín, J. J.
000063387 700__ $$aMoussaid, B.
000063387 7102_ $$12000$$2428$$aUniversidad de Zaragoza$$bDpto. Ciencias de la Tierra$$cÁrea Geodinámica Interna
000063387 773__ $$g97 (2017), 144-160$$pJ. struct. geol.$$tJournal of Structural Geology$$x0191-8141
000063387 8564_ $$s12906320$$uhttps://zaguan.unizar.es/record/63387/files/texto_completo.pdf$$yPostprint
000063387 8564_ $$s59709$$uhttps://zaguan.unizar.es/record/63387/files/texto_completo.jpg?subformat=icon$$xicon$$yPostprint
000063387 909CO $$ooai:zaguan.unizar.es:63387$$particulos$$pdriver
000063387 951__ $$a2019-07-09-12:02:38
000063387 980__ $$aARTICLE