REE geochemistry applied to the genetic study of fluorite in the mining district of El Hammam (Central Morocco)
The macroscopic and geochemical investigations of REE in fluorites of the mining district of El Hammam reveal several types of fluorite: green massive fluorite (FV type A), green brecciated fluorite (FV type B), white fluorite (FBl) and blue fluorite shaded in yellow (FBj). All these fluorites seem...
| Autores: | , , , |
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| Tipo de recurso: | artículo |
| Fecha de publicación: | 2013 |
| País: | España |
| Institución: | Universidad de Huelva (UHU) |
| Repositorio: | Arias Montano. Repositorio Institucional de la Universidad de Huelva |
| Idioma: | inglés |
| OAI Identifier: | oai:ariasmontano.uhu.es:10272/7822 |
| Acceso en línea: | http://hdl.handle.net/10272/7822 |
| Access Level: | acceso abierto |
| Palabra clave: | REE Fluorite Lamprophyre-monzogranite El Hammam Morocco Fluorita Lamprófido-monzogranito Marruecos |
| Sumario: | The macroscopic and geochemical investigations of REE in fluorites of the mining district of El Hammam reveal several types of fluorite: green massive fluorite (FV type A), green brecciated fluorite (FV type B), white fluorite (FBl) and blue fluorite shaded in yellow (FBj). All these fluorites seem crystallized into four stages that have occurred over time. Thinks to its high REE content, FV type A is the oldest. This is followed by FV type B, FBl, and finally FBj, which are inceasingly depleted in REE. The FV type A and FV type B are attributed to magmatic fluids, associated with lamprophyres and monzogranites respectively. The other fluorites (FBl and FBj) are generated mainly by the remobilization of the green fluorites (FV type A&B), and associated with interaction of magmatic and surficial fluids with the sedimentary and/or metamorphic host rocks. The footprint of basinal fluids becomes increasingly evident when comparing the FBl to FBj |
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