RT Journal Article T1 El modelo de plataforma carbonatada del Albiense superior de Sopeña (Karrantza, Bizkaia) T1 The Sopeña carbonate platform model. UpperAlbian of Karrantza valley, north Iherían píate A1 López Horgue, Mikel A. A1 Fernández Mendiola, Pedro Ángel A1 García Mondéjar, Joaquín AB A first detailed analysis of the UpperAlbian sequence of the Sopeña area, Karrantza valley (Bizkaia), is documented. E-W and N-S cross sections of the Sopeña platform Indicate different types of platform margins adjacent to basinal troughs with siliciclastic deposition. Internally, the Sopeña platform contains at least five sedimentary breaks, probably caused by relative sea-level falls of tectonic origin.A biostratigraphic analysis of the limestones (orbitolinids) gives a confident dating of the inflatumdispar ammonite zones PB Sociedad Geológica de España YR 1994 FD 1994 LK http://hdl.handle.net/10272/13937 UL http://hdl.handle.net/10272/13937 LA spa DS Repositorio Institucional de la Universidad de Huelva RD 1 jun 2026