169109 20260219161517.0 doi 10.1002/gj.2884 sideral 99815 ART-2017-99815 eng Calvín, P. (orcid)0000-0002-4485-2139 Detachment fold vs. ramp anticline: A gravity survey in the southern Pyrenean front (External Sierras) 2017 The Santo Domingo Anticline (External Sierras, Southern Pyrenees), which separates the Jaca piggyback basin from the Ebro foreland basin, is a key structure of the Pyrenees. Its geometry has been interpreted both as a detachment fold and as a hangingwall anticline associated with an underlying thrust. In this paper, we present the results from a gravity survey and 2.5D gravity modelling carried out around the Santo Domingo Anticline. Density measurements indicate a sharp density contrast between the Triassic evaporites-mudstones in the core of the anticline and the sedimentary sequence (limestones and sandstones) at its limbs. Gravity anomalies together with 2.5D gravity models allow to discern the along-strike structural changes. From east to west, we document a change from the ramp-associated fold to the detachment anticline. The capabilities and limitations of the gravimetric method for the determination of fold geometry are also discussed. Access copy available to the general public Unrestricted info:eu-repo/grantAgreement/ES/MINECO/CGL2014-54118-C2 info:eu-repo/semantics/openAccess All rights reserved http://www.europeana.eu/rights/rr-f/ 1.654 2017 GEOSCIENCES, MULTIDISCIPLINARY 110 / 189 = 0.582 2017 Q3 T2 0.846 2017 Geology 2017 Q2 info:eu-repo/semantics/article info:eu-repo/semantics/acceptedVersion Santolaria, P. (orcid)0000-0002-2408-809X Casas, A.M. Universidad de Zaragoza (orcid)0000-0003-3652-3527 Pueyo, E.L. Universidad de Zaragoza (orcid)0000-0002-0504-2352 2000 428 Universidad de Zaragoza Dpto. Ciencias de la Tierra Área Geodinámica Interna 53, 1 (2017), 178-190 Geol. j. GEOLOGICAL JOURNAL 0072-1050 1757291 http://zaguan.unizar.es/record/169109/files/texto_completo.pdf Postprint 1389727 http://zaguan.unizar.es/record/169109/files/texto_completo.jpg?subformat=icon icon Postprint oai:zaguan.unizar.es:169109 articulos driver 2026-02-19-14:10:43 ARTICLE