150274 20251017144635.0 doi 10.1016/j.sedgeo.2013.08.009 sideral 83192 ART-2013-83192 eng Gil, H. Universidad de Zaragoza (orcid)0000-0003-3457-1939 Stratigraphic architecture of alluvial-aeolian systems developed on active karst terrains: An Early Pleistocene example from the Ebro Basin (NE Spain) 2013 During the Early Pleistocene, fluvial, alluvial and aeolian depositional systems interacted in the central Ebro Basin, Spain, constructing wide alluvial plains over a Neogene evaporite substratum. Fluvial sediments, mainly longitudinal gravel bars and channels, are interdigitated with gravel mass flow and distal mudflat deposits. Aeolian sedimentation is registered as aeolian dunes and sand sheets. Episodes of fluvial deposition alternated with periods of alluvial fan progradation and aeolian deposition. These changes are related to climate-driven water availability. Stratigraphic units and deformation structures show synsedimentary karstification of the evaporite substratum that, although karst was not restricted to any particular climate scenario, was probably favoured during periods of high water availability. Karstification conditioned the development of local sedimentary depocentres which, in turn, influenced the distribution of sedimentary subenvironments as well as the accumulation and preservation of aeolian dunes and lacustrine–palustrine deposits. Stratigraphic architecture shows that thickening of the series due to karst subsidence did not occur homogeneously, but was controlled by diachronous subsidence resulting in numerous angular unconformities. In subsiding karst areas transport capacity was reduced and sediment preservation increased. info:eu-repo/grantAgreement/ES/DGA/GA-LC-026-2009 info:eu-repo/grantAgreement/ES/MICINN/CGL2011-23717 info:eu-repo/semantics/closedAccess All rights reserved http://www.europeana.eu/rights/rr-f/ 2.134 2013 GEOLOGY 11 / 44 = 0.25 2013 Q1 T1 info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion Luzón, A. Universidad de Zaragoza (orcid)0000-0002-8929-9429 Soriano, M.A. Universidad de Zaragoza (orcid)0000-0002-2842-517X Casado, I. Pérez, A. Universidad de Zaragoza (orcid)0000-0001-6285-2522 Yuste, A. Universidad de Zaragoza (orcid)0000-0002-2169-4561 Pueyo, E. Universidad de Zaragoza (orcid)0000-0002-0504-2352 Pocoví, A. Universidad de Zaragoza (orcid)0000-0003-3197-4177 2000 427 Universidad de Zaragoza Dpto. Ciencias de la Tierra Área Geodinámica Externa 2000 280 Universidad de Zaragoza Dpto. Ciencias de la Tierra Área Estratigrafía 2000 428 Universidad de Zaragoza Dpto. Ciencias de la Tierra Área Geodinámica Interna 2000 120 Universidad de Zaragoza Dpto. Ciencias de la Tierra Área Cristalografía Mineralog. 296 (2013), 122-141 Sediment. geol. Sedimentary Geology 0037-0738 7446021 http://zaguan.unizar.es/record/150274/files/texto_completo.pdf Versión publicada 2960260 http://zaguan.unizar.es/record/150274/files/texto_completo.jpg?subformat=icon icon Versión publicada oai:zaguan.unizar.es:150274 articulos driver 2025-10-17-14:28:53 ARTICLE