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

• M. Rodas ^[1] ; J. F. Barrenechea ^[1] ; F. J. Luque ^[1]
  1. [1] Universidad Complutense de Madrid

     Universidad Complutense de Madrid

     Madrid, España

     
• Localización: Geogaceta, ISSN 0213-683X, Nº. 20, 7, 1996, págs. 1573-1575
• Idioma: español
• Títulos paralelos:
  • Fluid-deposited graphite: The mineralization from Huelma (Jaen).
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• Resumen

  • 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.