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
Datum der Publikation: 1996
Nummer: 20
Seiten: 1573-1575
Art: Artikel
Andere Publikationen in: Geogaceta
Zusammenfassung
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.