Nuevos datos petrológicos, geocronología (Rb-Sr) y geoquímica isotópica (Sr, Nd) del plutón de Ventosilla (Sierra de Guadarrama, Sistema Central Español)

  1. Villaseca González, Carlos
  2. Barbero González, Luis C.
  3. Reyes Hernández, Javier
  4. Santos Zalduegui, José Francisco
Revista:
Geogaceta

ISSN: 0213-683X

Any de publicació: 1997

Número: 23

Pàgines: 169-172

Tipus: Article

DIALNET GOOGLE SCHOLAR lock_openArias Montano editor

Altres publicacions en: Geogaceta

Resum

Whole rock Rb-Sr ¡sotopic analyses on granites from Ventosilla pluton yield an age of 346 ± 63 Ma, and intercept at 0.708688 ± 0.00094. This age increases the time-span of the Hercynian plutonism in the area up to 70 Ma. The presence of a complex residual mineralogy and their Sr and Nd isotopic signatures, overlapping the previous isotopic data on peraluminous granites from the Spanish Central.System, suggest melting of mainly crustal sources for the origin of this pluton

Fuente de los datos: Dialnet