Biozonas de foraminijferos de la Sierra del Castillo (banda central de la Cuenca del Guadiato, Córdoba)

Abstract

The calcareous outcrops of the Sierra del Castillo (Córdoba) are studied, involving sedimentological biostratigraphical works with the analysis of the 26 recognized levels in two sections, the Cantera and the Collado. The reconstruction of three sedimentary enviroments, intertidal flat, subtidal flat and shallow shelf is obtained from the analysis of the facies. Inside these, local environments and sedimentary bodies can be distinguished, like shoals, chaneles filling, ripples, etc. The sequence define five regressive effects and four transgressive ones which not represent significative estratigraphic discontinuities, so the record is rather continous. The foraminifer systematic study results in 19 represented families and 75 genera; we will define with more precision the biostratigraphy of the outcrops, which initially are dated as Late Viséan-Early Namurian and we will centre in Latest viséan, foraminiferal zones 15 and 16 of MAMET.