| Título: | EXPRESS LETTERHelium isotopic ratios in fluid inclusions from fluorite-rich Mississippi Valley-Type district of Asturias, northern Spain |
| Autores: | Sánchez Pérez-Cejuela, Virginia ; Stuart, Finlay M. ; Martín Crespo, Tomás ; Vindel, Elena ; Corbella, Mercè ; Cardellach, Esteve |
| Tipo de documento: | texto impreso |
| Editorial: | The Geochemical Society of Japan, 2010 |
| Dimensiones: | application/pdf |
| Nota general: | info:eu-repo/semantics/openAccess |
| Idiomas: | |
| Palabras clave: | Estado = Publicado , Materia = Ciencias: Geología: Cristalografía , Tipo = Artículo |
| Resumen: |
Helium isotopes have been measured in fluorite and sulphides from fluorite-rich Mississippi Valley-type (MVT) deposits from Asturias, Spain, in order to assess the involvement of mantle and crust-derived volatiles in the genesis of the deposits. The 3He/4He of the ore fluids are ?0.1 Ra ruling out a contribution of mantle-derived magmatic helium in the inclusion fluids. Data support a crustal source for the volatiles and is consistent with the existing basinal model for the genesis of the Asturias MVT mineralization by mixing of sedimentary brines with infiltrating superficial fluids. |
| En línea: | https://eprints.ucm.es/id/eprint/16445/1/440100e1_1.pdf |
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