The late Miocene Campo Coy gypsum (Eastern Betics, Spain)
The Campo Coy basin contains an important evaporite succession, up to 350 meters thick of gypsum, including two gypsum units: lower and upper gypsum units. These are characterized by fine-grain laminated and selenitic primary gypsums and by nodular-laminated and meganodular secondary gypsums. The ge...
| Autores: | , , , |
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| Tipo de recurso: | artículo |
| Fecha de publicación: | 2020 |
| 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:10272/18587 |
| Acceso en línea: | http://hdl.handle.net/10272/18587 |
| Access Level: | acceso abierto |
| Palabra clave: | Evaporites Geochemistry Neogene Betic basins Evaporitas Geoquímica Cuencas neógenas Béticas |
| Sumario: | The Campo Coy basin contains an important evaporite succession, up to 350 meters thick of gypsum, including two gypsum units: lower and upper gypsum units. These are characterized by fine-grain laminated and selenitic primary gypsums and by nodular-laminated and meganodular secondary gypsums. The geochemical study based on sulfate isotope compositions (δ34S and δ18O) and strontium isotope ratios (87Sr/86Sr) point to the chemical recycling of Triassic marine evaporites. Isotope compositions (δ18O and δD) of the hydration water of gypsum point to continental waters for primary gypsum precipitation. These results are consistent with a shallow lacustrine environment for the Campo Coy gypsum deposit |
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