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

  1. J.A. lbáñez 1
  2. F. Velasco 1
  3. A. Pesquera 1
  1. 1 Deparamento de Mineralogía y Petelogíi Universidad del Pais Vasco. Apartado 644 48080 Bilbao.
Journal:
Geogaceta

ISSN: 0213-683X

Year of publication: 1996

Issue: 20

Pages: 1601-1604

Type: Article

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Abstract

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.

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