Resumen de Evolución sedimentaria y paleogeografía del jurásico Superior en la llanura de Arcos (Cordillera Ibérica septentrional)
J.J. Cepriá, Marcos Aurell Cardona, Beatriz Bádenas Lago
Facies analysis of the upper Kimmeridgian-Tithonian oftheArcos Plateau (northern Iberian Chain) allowed the identification of the J3.6 and J3.7 sequences defined by Aurell et al. (2000). Both sequences display a thin or even condensed transgressive systems tract, and thick highstand and forced regressive systems tracts. Development of shallower facies in the distal part of the ramp was controlled by the Montalban-Ejulve High. Peloidal and oncolitic shoals were present during sequence J3.6, whereas peloidal shoals and coralgal patch reefs developed during the highstand of sequence J3.7. These set of shallow facies prograded over outer ramp facies (i.e., lime mudstone and marls). The influence of the sedimentary high is not obvious during deposition of the forced regressive systems tract of sequence J3.7, when the overall southeast progradation of the oolitic shoals and associated restricted environments took place.
