Abad de los Santos, ManuelPendón Martín, José GabrielRuiz Muñoz, FranciscoRodríguez Vidal, JoaquínLópez González, NievesMantero, Isabel2014-09-052014-09-052005http://hdl.handle.net/10272/8755The passive margin of the Guadalquivir foreland basin records different stages of evolution during the tortonian transgression, mainly determinate by sedimentary supply/ accommodation space ratio (A/S ratio, Cattaneo and Steel, 2003). In a first phase, a high supply from the continental and deltaic systems filled quickly the low accommodation space and produced an agradational/progradational stacking pattern of sequences. The second episode is characterized by a change in these conditions, so the passive margin register a high increase of depth and carbonate facies predominates. Finally, the transgressive maximum is registered by means of the formation of a condensed level constituted by glauconitic sands and silts. This transgressive pulse supposed the advance of the shoreline several kilometres towards the forelandspaAtribución-NoComercial-SinDerivadas 3.0 Españahttp://creativecommons.org/licenses/by-nc-nd/3.0/es/Sea Level RisePaleogeographyTortonianGuadalquivir Basinjournal articleopen access