Resumen de Edad del "Tramo de transición" entre el Pérmico y el Jurásico en el área de Gijón (Asturias, NW de España)

Enrique Martínez García, R. Coquel, M. Gutiérrez Claverol, Jorge López Quiroga

• Palynological study of black marls below the Jurassic doldmltic limestones (Gijdn Formation) in the Gijdn Area (Asturias, NW Spain) show them to be of Rhetian (late Triassic) age. It appears that the so-called "transitional beds" (black arid red marls, sandstones and gypsum) between the Jurassic liiihestones and underlying Permian red-beds are in non-sequence with the latter