Formación de grafito a partir de fluidos: La mineralización de Huelma (Jaén).

  1. M. Rodas 1
  2. J. F. Barrenechea 1
  3. F. J. Luque 1
  1. 1 Dpto. Cristalografía y Mineralogía, Facultad de Ciencias Geológicas, Universidad Complutense de Madrid. 28040 MADRID.
Revista:
Geogaceta

ISSN: 0213-683X

Any de publicació: 1996

Número: 20

Pàgines: 1573-1575

Tipus: Article

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Altres publicacions en: Geogaceta

Resum

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.

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