RT Journal Article T1 El modelo de rampa mixta carbonatada y terrígena del aptiense de Castro Urdíales (Cantabria) T1 The Aptian mixed carbonate and siliciclastic ramp of Castro Urdíales (Cantabria, Northern Spain) A1 Rosales, Idoia A1 Fernández Mendiola, Pedro Ángel A1 García Mondéjar, Joaquín AB Detailed geologic mapping and facies analysis of the Lower Aptian succession in the Castro Urdiales area led to the establishment of a mixed depositional system built of three different carbonate ramp units interlayered with two siliciclastic intraplatform trough units. Carbonate ramps characterized relative calm tectonic stages,whereas siliciclastic troughs developed during more active tectonic stages. Internally the analyzed interval contains two major sedimentary breaks, caused probably by relative sea-level falls of tectonic origin PB Sociedad Geológica de España YR 1996 FD 1996 LK http://hdl.handle.net/10272/12164 UL http://hdl.handle.net/10272/12164 LA spa DS Repositorio Institucional de la Universidad de Huelva RD 1 jun 2026