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)

Abstract

Associated to the Navajun 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 for precipitation of a quite complex cement sequence. This sequence evolves from calcitic cements precipitated during diagenesis to minerals such as pyrite, chlorite, quartz, barite and calcite precipitated during hydrothermal metamorphism that affected this area.