Caracterización geoquímica y encuadre geodinámico de las anfibolitas y eclogitas del manto de Ojén, Complejo Alpujárride, Cordilleras Béticas

• Autores: José Julián Esteban Guzman, Julia Cuevas Urionabarrenechea, José María Tubía Martínez
• Localización: Geogaceta, ISSN 0213-683X, Nº. 46, 2009, págs. 19-22
• Idioma: español
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• Resumen

  • Amphibolite bodies with eclogite relics are found interlayered between tne Ojen nappe´s crustal rocks, below the Ronda peridotites of the Betic Cordilleras (southern Spain). We present a geochemical study of such amphibolites and retrogressed eclogites, from which it is possible to deduce a gabbroic origin for their protoliths. We propose thet their intrusion in the continental crust took place in a rift setting of Jurassic to Lower Cretaceous age. The recognition of this rifting event in the Alpujarride Complex places an additional constrait for Mesozoic reconstructions of the Westren Mediterranean.