| Título: | Sr and Nd isotope data from the fluorspar district of Asturias,northern Spain |
| Autores: | Sánchez Pérez-Cejuela, Virginia ; Corbella, Mercè ; Fuenlabrada Pérez, José Manuel ; Vindel, Elena ; Martín Crespo, Tomás |
| Tipo de documento: | texto impreso |
| Editorial: | Elsevier Science B.V., 2006 |
| Dimensiones: | application/pdf |
| Nota general: | info:eu-repo/semantics/openAccess |
| Idiomas: | |
| Palabras clave: | Estado = Publicado , Materia = Ciencias: Geología: Cristalografía , Tipo = Artículo |
| Resumen: |
The origin and age of the hydrothermal fluids related to the precipitation of fluorite, barite and calcite in the Villabona, La Collada and Berbes localities (Asturias fluorspar district, N Spain) have been evaluated from Sr and Nd radiogenic isotopes. Sr isotope data (87Sr / 86Sr=0.7081 to 0.7096) are compatible with mixing between seawater and a more evolved groundwater that interacted with the basement. From Nd isotopes in fluorite, an isochron age of 185±29 Ma (Lower Jurassic) was obtained, consistent with other hydrothermal events in the Iberian Peninsula and Europe. These constraints are essential to proceed with a quantitative model for the genesis of the mineralization that includes fluid and heat flow together with reactive transport of solutes. |
| En línea: | https://eprints.ucm.es/id/eprint/16395/1/jougeoexplo.pdf |
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