118156 20230519145543.0 doi 10.1007/s00531-021-02137-2 sideral 126931 ART-2021-126931 eng Clariana, P. Basement and cover architecture in the Central Pyrenees constrained by gravity data 2021 Access copy available to the general public Unrestricted A new gravity survey (1164 gravity stations and 180 samples for density analysis) combined with two new geological cross sections has been carried out in a sector of the Central Pyrenees in order to improve the characterization of basement and cover architecture. From North to South, the study area comprises the southern half of the Axial Zone and the northernmost part of the South-Pyrenean Zone. New gravity data were combined with previous existing databases to obtain the Bouguer and residual anomaly maps of the study area. The two cross sections, oriented NNE–SSW, were built from field data and previous surficial and subsurface data and cross the La Maladeta plutonic complex. The residual anomaly map shows values ranging from -18 to 16 mGal and anomalies mainly oriented N120E. The two 2.5D modelled cross sections show similar observed gravity curves coinciding with similar interpreted structural architecture. Data show a gravity high oriented N120E coinciding with the Orri basement thrust sheet and an important gravity depression, with the same orientation, coinciding with the leading edge at depth of the Rialp basement thrust sheet and interpreted as linked to a large subsurface accumulation of Triassic evaporites. The volume at depth of the La Maladeta and Arties granites has been constrained through gravity modelling. This work highlights that the combination of structural geology and gravity modelling can help to determine the structural architecture of an orogen and localize accumulations of evaporites at depth. © 2021, The Author(s). info:eu-repo/grantAgreement/ES/DGA/E01-20R info:eu-repo/grantAgreement/ES/MCIU/CGL2017-84901-C2-2-P info:eu-repo/grantAgreement/ES/MICINN/PID2020-114273GB-C22 info:eu-repo/semantics/openAccess by http://creativecommons.org/licenses/by/3.0/es/ 2.698 2021 GEOSCIENCES, MULTIDISCIPLINARY 114 / 203 = 0.562 2021 Q3 T2 0.859 2021 Earth and Planetary Sciences (miscellaneous) 2021 Q1 4.6 2021 info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion Soto, R. Ayala, C. Casas-Sainz, A. M. Universidad de Zaragoza (orcid)0000-0003-3652-3527 Román-Berdiel, T. Universidad de Zaragoza (orcid)0000-0002-9743-8695 Oliva-Urcia, B. Pueyo, E. L. Beamud, E. Rey-Moral, C. Rubio, F. Margalef, A. Schamuells, S. Bach, N. Martí, J. 2000 428 Universidad de Zaragoza Dpto. Ciencias de la Tierra Área Geodinámica Interna 111, 2 (2021), [18 pp.] Int. j. earth sci. International Journal of Earth Sciences 1437-3254 7699198 http://zaguan.unizar.es/record/118156/files/texto_completo.pdf Versión publicada 2364768 http://zaguan.unizar.es/record/118156/files/texto_completo.jpg?subformat=icon icon Versión publicada oai:zaguan.unizar.es:118156 articulos driver 2023-05-18-15:41:48 ARTICLE