The Geology of Spain

abundant activity alluvial ammonoids associated basalts base basement basin beds belt Betic boundary Cantabrian carbonate Central Coastal complex comprises conglomerates consists contain continental Cordillera correlation Cretaceous deformation deposits developed Devonian domain early east eastern environments et al extensional facies faults folds formations formed fossils granite groups Iberian Iberian Ranges important indicate interpreted interval island Jurassic Kimmeridgian known late later levels limestones locally located lower mainly major margin marls Massif metamorphic middle Miocene northern occur Ordovician outcrops overlying phase platform Pleistocene present probably produced province Pyrenean Pyrenees quartzites Ranges record regional represented resulted rifting rocks sandstones sedimentary sediments sequence shales shallow Sierra similar southern Spain stage stratigraphic structures studies succession suggest tectonic thick thrust Triassic trough turbidites unconformity unit upper Variscan volcanic volcaniclastic western Zone