Mineralogy, geochemistry and petrogenesis of a new jade deposit, Sierra del Convento Mélange, E. Cuba

The Sierra del Convento mélange (Eastern Cuba) represents a well preserved fragment of the Cretaceous oceanic subduction channel in the Caribbean realm, developed by the subduction of the Protocaribbean basin below the Caribbean Plate. The mélange is formed by a serpentinite matrix, which contains a...

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Detalles Bibliográficos
Autor: Cárdenas Párraga, Juan
Tipo de recurso: tesis doctoral
Estado:Versión publicada
Fecha de publicación:2019
País:España
Institución:Consejo Superior de Investigaciones Científicas (CSIC)
Repositorio:DIGITAL.CSIC. Repositorio Institucional del CSIC
OAI Identifier:oai:digital.csic.es:10261/206771
Acceso en línea:http://hdl.handle.net/10261/206771
Access Level:acceso abierto
Palabra clave:Mineralogía
Mélange
Sierra del Convento (Cuba)
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spelling Mineralogy, geochemistry and petrogenesis of a new jade deposit, Sierra del Convento Mélange, E. CubaCárdenas Párraga, JuanMineralogíaMélangeSierra del Convento (Cuba)The Sierra del Convento mélange (Eastern Cuba) represents a well preserved fragment of the Cretaceous oceanic subduction channel in the Caribbean realm, developed by the subduction of the Protocaribbean basin below the Caribbean Plate. The mélange is formed by a serpentinite matrix, which contains a variety of tectonic blocks metamorphosed to high pressure and low to high temperature, including blueschists, pelitic gneisses, anatectic tonalitic–trondhjemitic rocks, epidote-garnet plagioclase-lacking amphibolites and sepertinites. This mélange has unique characteristics by showing evidence of partial melting of the slab developed by subduction of very young oceanic plate. Recently, in situ jadeitite blocks have been discovered in the Sierra del Convento mélange surrounded by sheared serpentinitic rocks. The combination of hot subduction and occurrence of jadeitite generates an exceptional scenario to decipher the interaction at intermediate to high-temperature of fluids in the subduction channel and its boundary with the mantle wedge. This PhD thesis is focused on the study of jadeitite and related rocks with emphasis in their petrogenesis by fluid-rock interaction in a subductive context. In addition, the serpentinitic rocks associated with jadeitites have been included in the study in order to decipher the context of formation of jadeitites. Serpentinite rocks preserve fertile protolith signatures[ES] La mélange de la Sierra del Convento (Cuba Oriental) representa un fragmento bien conservado del canal de subducción oceánica del Cretácico en el ambiente Caribeño, desarrollado por la subducción de la cuenca oceánica protocaribeña bajo la placa del Caribe. La mélange está formada por una matriz serpentinítica, la cual contiene una variedad de bloques tectónicos metamorfizados a alta presión y de baja a alta temperatura, incluyendo esquistos azules, gneises pelíticos, rocas anatécticas trondhjemíticas y tonalíticas, anfibolitas de epidota y granate sin plagioclasa y serpentinitas. Esta mélange tiene características únicas por mostrar evidencias de fusión parcial de la lámina subducente gracias a la subducción de una placa oceánica muy joven. Recientemente, bloques in situ de jadeitita han sido descubiertos en la mélange de la Sierra del Convento rodeados por rocas serpentiníticas cizalladas. La combinación de subducción caliente y la aparición de jadeitita ofrece un escenario excepcional para descifrar la interacción de fluidos en el canal de subducción, y su límite con la cuña de manto. Esta tesis doctoral está focalizada en el estudio de la petrogénesis de jadeititas y rocas asociadas por interacción de fluido-roca en un contexto subductivo. Además, las rocas serpentiníticas asociadas a las jadeititas han sido incluidas en este estudio para descifrar el contexto de formación de las jadeititas.Universidad de GranadaGarcia Casco, AntonioHarlow, George E.Consejo Superior de Investigaciones Científicas [https://ror.org/02gfc7t72]2020202020192020info:eu-repo/semantics/doctoralThesishttp://purl.org/coar/resource_type/c_db06Publisher's versioninfo:eu-repo/semantics/publishedVersionhttp://hdl.handle.net/10261/206771reponame:DIGITAL.CSIC. Repositorio Institucional del CSICinstname:Consejo Superior de Investigaciones Científicas (CSIC)InglésSíinfo:eu-repo/semantics/openAccessoai:digital.csic.es:10261/2067712026-05-22T06:33:51Z
dc.title.none.fl_str_mv Mineralogy, geochemistry and petrogenesis of a new jade deposit, Sierra del Convento Mélange, E. Cuba
title Mineralogy, geochemistry and petrogenesis of a new jade deposit, Sierra del Convento Mélange, E. Cuba
spellingShingle Mineralogy, geochemistry and petrogenesis of a new jade deposit, Sierra del Convento Mélange, E. Cuba
Cárdenas Párraga, Juan
Mineralogía
Mélange
Sierra del Convento (Cuba)
title_short Mineralogy, geochemistry and petrogenesis of a new jade deposit, Sierra del Convento Mélange, E. Cuba
title_full Mineralogy, geochemistry and petrogenesis of a new jade deposit, Sierra del Convento Mélange, E. Cuba
title_fullStr Mineralogy, geochemistry and petrogenesis of a new jade deposit, Sierra del Convento Mélange, E. Cuba
title_full_unstemmed Mineralogy, geochemistry and petrogenesis of a new jade deposit, Sierra del Convento Mélange, E. Cuba
title_sort Mineralogy, geochemistry and petrogenesis of a new jade deposit, Sierra del Convento Mélange, E. Cuba
dc.creator.none.fl_str_mv Cárdenas Párraga, Juan
author Cárdenas Párraga, Juan
author_facet Cárdenas Párraga, Juan
author_role author
dc.contributor.none.fl_str_mv Garcia Casco, Antonio
Harlow, George E.
Consejo Superior de Investigaciones Científicas [https://ror.org/02gfc7t72]
dc.subject.none.fl_str_mv Mineralogía
Mélange
Sierra del Convento (Cuba)
topic Mineralogía
Mélange
Sierra del Convento (Cuba)
description The Sierra del Convento mélange (Eastern Cuba) represents a well preserved fragment of the Cretaceous oceanic subduction channel in the Caribbean realm, developed by the subduction of the Protocaribbean basin below the Caribbean Plate. The mélange is formed by a serpentinite matrix, which contains a variety of tectonic blocks metamorphosed to high pressure and low to high temperature, including blueschists, pelitic gneisses, anatectic tonalitic–trondhjemitic rocks, epidote-garnet plagioclase-lacking amphibolites and sepertinites. This mélange has unique characteristics by showing evidence of partial melting of the slab developed by subduction of very young oceanic plate. Recently, in situ jadeitite blocks have been discovered in the Sierra del Convento mélange surrounded by sheared serpentinitic rocks. The combination of hot subduction and occurrence of jadeitite generates an exceptional scenario to decipher the interaction at intermediate to high-temperature of fluids in the subduction channel and its boundary with the mantle wedge. This PhD thesis is focused on the study of jadeitite and related rocks with emphasis in their petrogenesis by fluid-rock interaction in a subductive context. In addition, the serpentinitic rocks associated with jadeitites have been included in the study in order to decipher the context of formation of jadeitites. Serpentinite rocks preserve fertile protolith signatures
publishDate 2019
dc.date.none.fl_str_mv 2019
2020
2020
2020
dc.type.none.fl_str_mv info:eu-repo/semantics/doctoralThesis
http://purl.org/coar/resource_type/c_db06
Publisher's version
info:eu-repo/semantics/publishedVersion
format doctoralThesis
status_str publishedVersion
dc.identifier.none.fl_str_mv http://hdl.handle.net/10261/206771
url http://hdl.handle.net/10261/206771
dc.language.none.fl_str_mv Inglés
language_invalid_str_mv Inglés
dc.relation.none.fl_str_mv Sí
dc.rights.none.fl_str_mv info:eu-repo/semantics/openAccess
eu_rights_str_mv openAccess
dc.publisher.none.fl_str_mv Universidad de Granada
publisher.none.fl_str_mv Universidad de Granada
dc.source.none.fl_str_mv reponame:DIGITAL.CSIC. Repositorio Institucional del CSIC
instname:Consejo Superior de Investigaciones Científicas (CSIC)
instname_str Consejo Superior de Investigaciones Científicas (CSIC)
reponame_str DIGITAL.CSIC. Repositorio Institucional del CSIC
collection DIGITAL.CSIC. Repositorio Institucional del CSIC
repository.name.fl_str_mv
repository.mail.fl_str_mv
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