The largest mercury anomaly on Earth (Almadén, Spain): a mantle-derived feature?
The Almadén Hg deposits are associated with deeply altered magmatic rocks, which main features are briefly described here. Geochemical, including isotopic, data on these rocks suggest that they are derived from deep mantelic sources. The volcanic units underwent low-pressure alteration processes, pr...
| Autores: | , , , |
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| Formato: | artículo |
| Fecha de publicación: | 1998 |
| País: | España |
| Recursos: | Universidad de Huelva (UHU) |
| Repositorio: | Arias Montano. Repositorio Institucional de la Universidad de Huelva |
| Idioma: | inglés |
| OAI Identifier: | oai:ariasmontano.uhu.es:10272/10201 |
| Acesso em linha: | http://hdl.handle.net/10272/10201 |
| Access Level: | acceso abierto |
| Palavra-chave: | Magmatism Alterations Hg deposits Hercynian Almadén Spain |
| Resumo: | The Almadén Hg deposits are associated with deeply altered magmatic rocks, which main features are briefly described here. Geochemical, including isotopic, data on these rocks suggest that they are derived from deep mantelic sources. The volcanic units underwent low-pressure alteration processes, probably related to the geothermal evolution of the district along with the magmatic activity (Silurian-Devonian). As a conclusion, this magmatism could have been the responsible for the mobilisation of mercury concentrated in the district deposits |
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