Geoquímica de los isótopos de azufre, carbono, oxígeno y plomo de Las mineralizaciones del paleozoico del Macizo de la Demanda (Burgos-La Rioja, España).

• J.A. lbáñez ^[1] ; F. Velasco ^[1] ; A. Pesquera ^[1]
  1. [1] Universidad del País Vasco/Euskal Herriko Unibertsitatea

     Universidad del País Vasco/Euskal Herriko Unibertsitatea

     Leioa, España

     
• Localización: Geogaceta, ISSN 0213-683X, Nº. 20, 7, 1996, págs. 1601-1604
• Idioma: español
• Títulos paralelos:
  • Sulphur, carbon, oxygen and lead isotope geochemistry of the Ore deposits hosted by the paleozoic from the sierra de la Demanda (Burgos-la Rioja, España).
• Enlaces
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• Resumen

  • Several Pb-Cu-Zn orebodies of different size and origin occur in Paleozoic materials from the Demandamas8if, dlat has been mainly deformed by the Hercynian orogeny. Most of the here studied deposits areveín type, except Carmina mine that may account for a sedex type one. All of them are hosted by Upper Cambrian shales and sandstones. The isotopic and geologic features of these orebodies suggest that therehave been different ages of xliineralization, and that hydrothermal solutions came from a similar sourcerelated to the Paleozoic sedimentary sequence.