Edad y origen de la fluorita del yacimiento de La Nueva (Cabalango, Córdoba, Argentina) en base a geoquímica de isótopos radiogénicos (Nd y Sr).

  1. Galindo Francisco, Carmen
  2. Baldo, Edgardo G.
  3. Pankhurst, Robert John
  4. Casquet Martín, César
  5. Rapela, Carlos Washington
  6. Saavedra Alonso, Julio
Revista:
Geogaceta

ISSN: 0213-683X

Año de publicación: 1995

Número: 19

Páginas: 67-70

Tipo: Artículo

DIALNET GOOGLE SCHOLAR lock_openArias Montano editor

Otras publicaciones en: Geogaceta

Resumen

The fluorite mineralization from the La Nueva Mine, has a S m-Nd age of 130±19 Ma, and thus must be related to the Lower Cretaceous late -Gondwanic extensional and magmatic event that affected the Sierras Pampeanas Basement of Argentina. Hydrothermal fluids involved in the formation of fluorite were probably derived by mixing of two fluids , an ascending high B7Sr/86Sr one, probably equilibrated with basement metamorphics, as suggested by the very negative ENd(130) values, and a second, «descending», with a low B7Sr/86Sr value

Fuente de los datos: Dialnet