Edad y origen de la fluorita del yacimiento de La Nueva (Cabalango, Córdoba, Argentina) en base a geoquímica de isótopos radiogénicos (Nd y Sr)
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...
| Autores: | , , , , , |
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| Tipo de recurso: | artículo |
| Fecha de publicación: | 1995 |
| País: | España |
| Institución: | Universidad de Huelva (UHU) |
| Repositorio: | Arias Montano. Repositorio Institucional de la Universidad de Huelva |
| Idioma: | español |
| OAI Identifier: | oai:ariasmontano.uhu.es:10272/13379 |
| Acceso en línea: | http://hdl.handle.net/10272/13379 |
| Access Level: | acceso abierto |
| Palabra clave: | Fluorite Sm-Nd geochronology Rb-Sr geochemistry Sierras Pampeanas Córdoba Argentina |
| Sumario: | 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 |
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