Datación Ar39 / Ar40 de mineralizaciones de mercurio de Sinclinal de Almadén

Mercury mineralizations in the Almaden district can be grouped in two main categories: i) strata-bound mineralizations hosted in Criadero quartzite (Lower Silurian) and ii) veins and stockworks in Silurian and Devonian hosting rocks. The 39Ar/40Ar dating of illite, probably related with the hydrothe...

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Detalles Bibliográficos
Autores: Hall, Chris M.; Higueras, Pablo L.; Kesler, Stephen E.; Lunar Hernández, Rosario; Dong, Hailing; Halliday, Alex N.
Tipo de documento: Artículo
Fecha de publicación:1996
País:España
Institución:Universidad de Huelva (UHU)
Repositorio:Arias Montano. Repositorio Institucional de la Universidad de Huelva
Lenguaje:Español
OAI Identifier:oai:ariasmontano.uhu.es:10272/11828
Acceso en línea:http://hdl.handle.net/10272/11828
Nivel de acceso:Acceso abierto
Palabra clave:Geochronology
Mineral deposits
Mercury
Hercynian
39Ar/40Ar
Descripción
Sumario:Mercury mineralizations in the Almaden district can be grouped in two main categories: i) strata-bound mineralizations hosted in Criadero quartzite (Lower Silurian) and ii) veins and stockworks in Silurian and Devonian hosting rocks. The 39Ar/40Ar dating of illite, probably related with the hydrothermal activity responsible of the second type of mineralizations, yields 361 ± 2 Ma. This age is some 25-50 Ma older than the age of granitic intrusions in the area, and could be the age of the epigenetic mercury mineralizations