Deducción de la existencia de un relieve Nevado-Filábride durante el Mioceno Medio-Superior, actualmente bajo el mar, al sur de las sierras costeras alpujárrides de El Roldán y La Muela (oeste de Cartagena, Cordillera Bética Oriental)
- J.I. Manteca Martínez 1
- J.A. Rodríguez Martínez-Conde 1
- E. Puga 2
- A. Díaz de Federico 2
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1
Universidad Politécnica de Cartagena
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2
Instituto Andaluz de Ciencias de la Tierra
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ISSN: 0214-2708
Año de publicación: 2004
Volumen: 17
Número: 1-2
Páginas: 27-37
Tipo: Artículo
Otras publicaciones en: Revista de la Sociedad Geológica de España
Resumen
In the Canteras-Galifa zone, located at the south-westerly outskirt of the Campo de Cartagena Neogene-Quaternary basin, the Neogene formations are located on the northern border of the El Roldán and La Muela littoral mountains in which only alpujárride materials crop out. The study of the Miocene stratigraphic sequence shows that conglomerate clasts were of alpujárride provenance during Serravallian and Tortonian I-time, while in the Tortonian II they were mainly of nevado-filábride provenance. As the source area of the sediments in this part of the basin was situated southwards, where the nevadofilábride formations are not actually present, we can deduce that during Serravallian and Tortonian I, littoral mountains were covered by an alpujárride formation, but in the Tortonian II, the erosive action combined with the tectonic upraising of the chain, exposed a zone of the nevado-filábride substratum. Later, during Pliocene and Pleistocene, postorogenic readjustments provoked the immersion of the littoral chain meridional stripe, with the nevado-filábride formations.