Sequence of crystallisation of pegmatites: the Angola case

The Precambrian basement of Angola contains several pegmatite fields, although most of them have not been studied yet. Some of them include pegmatites devoid of rare elements, as those found close to Caxito, about 100 km ENE Luanda. These pegmatites are exploited for the production of industrial min...

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Detalles Bibliográficos
Autores: Gonçalves, Antonio Olimpio, Melgarejo i Draper, Joan-Carles, Alfonso Abella, María Pura
Tipo de recurso: artículo
Estado:Versión publicada
Fecha de publicación:2009
País:España
Institución:Universidad de Barcelona
Repositorio:Dipòsit Digital de la UB
OAI Identifier:oai:diposit.ub.edu:2445/69721
Acceso en línea:https://hdl.handle.net/2445/69721
Access Level:acceso abierto
Palabra clave:Pegmatites
Cristal·lització
Angola
Crystallization
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spelling Sequence of crystallisation of pegmatites: the Angola caseGonçalves, Antonio OlimpioMelgarejo i Draper, Joan-CarlesAlfonso Abella, María PuraPegmatitesCristal·litzacióAngolaPegmatitesCrystallizationAngolaThe Precambrian basement of Angola contains several pegmatite fields, although most of them have not been studied yet. Some of them include pegmatites devoid of rare elements, as those found close to Caxito, about 100 km ENE Luanda. These pegmatites are exploited for the production of industrial minerals. Moreover, some rare element pegmatite fi elds occur close to Namibe, in the desertic part of the southwest of the country. These pegmatites were prospected for Be and Ta in the 1960's. The distribution of the pegmatite types, as well as the exceptional quality of the outcrops, due to lack of weathering or soil cover, allow a complete sampling in order to study the evolution of a pegmatite field, from parental granites to barren pegmatites, beryl-columbite-phosphate pegmatites and spodumene pegmatites. Furthermore, the internal evolution of each pegmatite type has been also studied.Universidade Federal de Pernambuco2009info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionapplication/pdfhttps://hdl.handle.net/2445/69721Articles publicats en revistes (Mineralogia, Petrologia i Geologia Aplicada)reponame:Dipòsit Digital de la UBinstname:Universidad de BarcelonaInglésReproducció del document publicat a: https://www.ufpe.br/estudosgeologicos/paginas/edicoes/2009192/2009192t06.pdfEstudos geológicos, 2009, vol. 19, num. 2, p. 35-39(c) Universidade Federal de Pernambuco, 2009info:eu-repo/semantics/openAccessoai:diposit.ub.edu:2445/697212026-05-27T06:46:51Z
dc.title.none.fl_str_mv Sequence of crystallisation of pegmatites: the Angola case
title Sequence of crystallisation of pegmatites: the Angola case
spellingShingle Sequence of crystallisation of pegmatites: the Angola case
Gonçalves, Antonio Olimpio
Pegmatites
Cristal·lització
Angola
Pegmatites
Crystallization
Angola
title_short Sequence of crystallisation of pegmatites: the Angola case
title_full Sequence of crystallisation of pegmatites: the Angola case
title_fullStr Sequence of crystallisation of pegmatites: the Angola case
title_full_unstemmed Sequence of crystallisation of pegmatites: the Angola case
title_sort Sequence of crystallisation of pegmatites: the Angola case
dc.creator.none.fl_str_mv Gonçalves, Antonio Olimpio
Melgarejo i Draper, Joan-Carles
Alfonso Abella, María Pura
author Gonçalves, Antonio Olimpio
author_facet Gonçalves, Antonio Olimpio
Melgarejo i Draper, Joan-Carles
Alfonso Abella, María Pura
author_role author
author2 Melgarejo i Draper, Joan-Carles
Alfonso Abella, María Pura
author2_role author
author
dc.subject.none.fl_str_mv Pegmatites
Cristal·lització
Angola
Pegmatites
Crystallization
Angola
topic Pegmatites
Cristal·lització
Angola
Pegmatites
Crystallization
Angola
description The Precambrian basement of Angola contains several pegmatite fields, although most of them have not been studied yet. Some of them include pegmatites devoid of rare elements, as those found close to Caxito, about 100 km ENE Luanda. These pegmatites are exploited for the production of industrial minerals. Moreover, some rare element pegmatite fi elds occur close to Namibe, in the desertic part of the southwest of the country. These pegmatites were prospected for Be and Ta in the 1960's. The distribution of the pegmatite types, as well as the exceptional quality of the outcrops, due to lack of weathering or soil cover, allow a complete sampling in order to study the evolution of a pegmatite field, from parental granites to barren pegmatites, beryl-columbite-phosphate pegmatites and spodumene pegmatites. Furthermore, the internal evolution of each pegmatite type has been also studied.
publishDate 2009
dc.date.none.fl_str_mv 2009
dc.type.none.fl_str_mv info:eu-repo/semantics/article
info:eu-repo/semantics/publishedVersion
format article
status_str publishedVersion
dc.identifier.none.fl_str_mv https://hdl.handle.net/2445/69721
url https://hdl.handle.net/2445/69721
dc.language.none.fl_str_mv Inglés
language_invalid_str_mv Inglés
dc.relation.none.fl_str_mv Reproducció del document publicat a: https://www.ufpe.br/estudosgeologicos/paginas/edicoes/2009192/2009192t06.pdf
Estudos geológicos, 2009, vol. 19, num. 2, p. 35-39
dc.rights.none.fl_str_mv (c) Universidade Federal de Pernambuco, 2009
info:eu-repo/semantics/openAccess
rights_invalid_str_mv (c) Universidade Federal de Pernambuco, 2009
eu_rights_str_mv openAccess
dc.format.none.fl_str_mv application/pdf
dc.publisher.none.fl_str_mv Universidade Federal de Pernambuco
publisher.none.fl_str_mv Universidade Federal de Pernambuco
dc.source.none.fl_str_mv Articles publicats en revistes (Mineralogia, Petrologia i Geologia Aplicada)
reponame:Dipòsit Digital de la UB
instname:Universidad de Barcelona
instname_str Universidad de Barcelona
reponame_str Dipòsit Digital de la UB
collection Dipòsit Digital de la UB
repository.name.fl_str_mv
repository.mail.fl_str_mv
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score 15.300724

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