Caracterización químico-mineralógica de las cromitas ofiolíticas de Calzadilla de los Barros (Badajoz)

The Cerro Cabrera and Sierra Cabeza Gorda peridotite massifs (Calzadilla de los Barros, Badajoz) comprise serpentinites hosting podiform chromite mineralization and have been interpreted as part of an ophiolitic slab. The chromites are Al-rich and cristallized from a MORB-type melt. The subsolidus r...

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Detalhes bibliográficos
Autores: Martos, Rubén, Ortega Menor, Lorena, Gervilla, Fernando, Piña García, Rubén, Monterrubio, Serafín, Lunar Hernández, María Del Rosario, Albert, Helena
Formato: artículo
Fecha de publicación:2010
País:España
Recursos:Universidad Complutense de Madrid (UCM)
Repositorio:Docta Complutense
Idioma:español
OAI Identifier:oai:docta.ucm.es:20.500.14352/42761
Acesso em linha:https://hdl.handle.net/20.500.14352/42761
Access Level:acceso abierto
Palavra-chave:552.3
Chromite
podiform
ophiolite
dunite
harzburgite
Petrología
Descrição
Resumo:The Cerro Cabrera and Sierra Cabeza Gorda peridotite massifs (Calzadilla de los Barros, Badajoz) comprise serpentinites hosting podiform chromite mineralization and have been interpreted as part of an ophiolitic slab. The chromites are Al-rich and cristallized from a MORB-type melt. The subsolidus reequilibration with olivine depleted the chromite margins in Al and Mg. Later metamorphic alteration produced a enrichment in Fe3+, resulting in the formation of ferrichromite.

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