Las unidades litoestratigráficas del Jurásico Medio de la Cordillera Ibérica

Abstract

Five lithostratigraphic units applicable to the different Middle jurassic palaeogeographical elements of the Iberian platform system are proposed. For the oolitic-dolomitic belt developed in the Internal Castilian Platform, the Yemeda Fm is proposed. To the mainly dolomitic facies which extends aver the El Maestrazgo High, the Rafales Fm is defined. Within the micritic external platform facies of the Castilian and Aragonese platforms, three formations have been recognized. The lower unit (El Pedregal Fm) is constituted of microfilament, mudstone to wackestone limestones. The middle unit (Moscardon Fm) is made up of bioclastic and oolitic, grainstone to packstone limestones. The upper unit (Domeño Fm) represents a return to the external low energy wackestone to mudstone facies, locally containing patches of oolitic grainstone facies.