La Formación Milanos en el Subbético Medio (Jurásico superior): definición y descripción

Abstract

The Milanos Fm (Upper Kimmeridgian-Tithonian) is defined and characterised as a new formation belonging to the Middle Subbetic (External Zones of the Betic Cordillera). It is composed by marly limestones, marls and calciclastites with chert, but over all it is mainly distinguished by the presence of calcarenitic and calcisiltitic levels with hummocky cross-stratification (HCS). The caltidastic levels are interpreted as storm layers deposited in an outer marine platform or ramp below the fair-weather storm wave base level, in which only the waves generated by the stronger storms would affect the bottom