Mineralizaciones filonianas de W asociadas al plutón de Santa Eufemia (Batolito de Los Pedroches, Córdoba)
- Antonio García Casco
- Emilio Pascual Martínez
- Purificación Fenoll Hach-Alí
- Pedro Higueras Higueras
ISSN: 0210-6558
Datum der Publikation: 1988
Ausgabe: 11
Nummer: 1
Seiten: 113-124
Art: Artikel
Andere Publikationen in: Boletín de la Sociedad Española de Mineralogía
Zusammenfassung
The Santa Eufemia pluton belongs to the Hercynian lateorogenic magmatic association of the "Los Pedroches" batholith (Southern branch of the Central Iberian Zone). It consists of porphyritic biotite-cordierite monzogranites and aplitic cordierite leucogranites. Quartz veins with W-As mineralizations and typical muscovitizations and turmalinizations, with local quartz-muscovite associations (greissen like) are to be found around the periphery of the pluton. The geochemistry (Sn-W), the periplutonic distribution and the zonation of the veins suggest that the igneous contact between the granites and the metasedimentary rocks migth have acted as a physico-chemical barrier, forcing the precipitation of the ores. With regard to the mineralization, the granites are specialised, in Sn, W and associated metals (Rb, Be, Nb, ...) probably obtained primarily from the anatectic region and subsequently enhanced by the magmatic and tardimagmatic evolutionary processes.