Formación de grafito a partir de fluidos: La mineralización de Huelma (Jaén).
- M. Rodas 1
- J. F. Barrenechea 1
- F. J. Luque 1
- 1 Dpto. Cristalografía y Mineralogía, Facultad de Ciencias Geológicas, Universidad Complutense de Madrid. 28040 MADRID.
ISSN: 0213-683X
Argitalpen urtea: 1996
Zenbakia: 20
Orrialdeak: 1573-1575
Mota: Artikulua
Beste argitalpen batzuk: Geogaceta
Laburpena
The volcanic-hosted graphite mineralization of Huelma (Jaén) has been studied in order to stablish the mineralogical characteristics and mechanisms of formation. The graphite is highly ordered (as revealed by XRD and Raman data) and rather pure chemically (C content >90%). The isotopic signature (d13C=- 23 to -20.7%) and other geological evidences indicate that C in these graphites is derived from the organic matter included in the metamorphic basement.