77157 20200117221651.0 doi 10.1029/2017TC004936 sideral 108046 ART-2018-108046 eng Torres-López, S. Evolution of the Ridges of Midelt-Errachidia Section in the High Atlas Revealed by Paleomagnetic Data 2018 Access copy available to the general public Unrestricted New paleomagnetic data (43 sites) from Mesozoic sediments are contributed in this work, verifying the presence of a pervasive syntectonic Early Cretaceous remagnetization in the easternmost area of the Moroccan High Atlas. Using the small circle intersection method, we have calculated the characteristic remagnetization direction (Dec: 337.3, Inc: 38.4) that fits with a 100-Ma age, according to the Apparent Polar Wander Path of Africa. The paleomagnetic vectors of remagnetization are used to obtain the geometry during the remagnetization stage (100 Ma) of one of the most renowned geological cross sections of the High Atlas, the Midelt-Errachidia profile. The partial restoration of the cross section at 100 Ma allows us to determine the dips of the beds at the remagnetization stage in five structures (ridges or anticlines). Our results indicate that the five ridges that configure the Midelt-Errachidia profile were initiated to different degrees prior to wholesale compressive deformation during the Cenozoic. This configuration can be explained according to two different scenarios that we discuss in this paper: transpression and diapirism. The geological model obtained, both at present and at 100 Ma, indicates the existence of a Mesozoic cover substantially décolled from the Paleozoic basement, what strongly contrasts with previously published transects of the same area. info:eu-repo/grantAgreement/ES/MINECO/CGL2012-38481 info:eu-repo/grantAgreement/ES/MINECO/CGL2016-77560 info:eu-repo/semantics/openAccess All rights reserved http://www.europeana.eu/rights/rr-f/ 3.975 2018 GEOCHEMISTRY & GEOPHYSICS 14 / 84 = 0.167 2018 Q1 T1 2.371 2018 Geophysics 2018 Q1 Geochemistry and Petrology 2018 Q1 info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion (orcid)0000-0003-3652-3527 Casas, A.M. Universidad de Zaragoza Villalaín, J.J. Moussaid, B. Ruiz Martínez, V.C. El-Ouardi, H. 2000 428 Universidad de Zaragoza Dpto. Ciencias de la Tierra Área Geodinámica Interna 37 (2018), [23 pp] Tectonics Tectonics 0278-7407 1175262 http://zaguan.unizar.es/record/77157/files/texto_completo.pdf Versión publicada 123322 http://zaguan.unizar.es/record/77157/files/texto_completo.jpg?subformat=icon icon Versión publicada oai:zaguan.unizar.es:77157 articulos driver 2020-01-17-22:09:05 ARTICLE