Estudio de los procesos de septaritización, cementación y reemplazamiento de las concreciones carbonatadas asociadas al yacimiento de piritas de Navajún. Cuenca de Cameros (La Rioja)

  1. J. Alonso-Azcárate 1
  2. M.l. Benito 2
  3. J.R. Mas 2
  4. M. Rodas 1
  1. 1 Dpto. Cristalografía y Mineralogía. Facultad de Ciencias Geológicas. Madrid
  2. 2 Dpto. Estratigrafía. Instituto de Geología Económica C.S.I.C. Facultad de Ciencias Geológicas. Madrid.
Journal:
Geogaceta

ISSN: 0213-683X

Year of publication: 1996

Issue: 20

Pages: 635-638

Type: Article

More publications in: Geogaceta

Abstract

Associated to the Navajún pyrite deposits (Cameros basin. North Spain), it appears a lutite horizont with decimetric carbonate concretions normally septarized. This septarization occured during early diagenesis, and it provided a suitable place far precipitation of a quite complex cement sequence. This sequence evo/ves from ca/citic cements precipitated during diagenesis to minera/s such as pyrite, ch/orite, quartz, barite and ca/cite precipitated during hydrothermal metamorphism that affected this area.