Zonal distribution of gold and platinium group elements in the Mondunguara deposits Mozambique

Detalhes bibliográficos
Autor(a) principal: d'Orey, F. L. C.
Data de Publicação: 1992
Tipo de documento: Artigo
Idioma: eng
Título da fonte: Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos)
Texto Completo: http://hdl.handle.net/10362/4494
Resumo: The Mondunguara copper mines are situated in mountainous terrain in west-central Mozambique. The mineralization consists of chalcopyrite, pyrrhotite, common pcntlandite, cobaltpentlandite, pyrite and several minor oxides and sulphides in tabular ore bodies deeping steep to the north. Gold was known to occur in small quantities but no systematic sampling and analysis for precious clements was ever done. Mineralogical and geological evidence has shown that the ores are magmatic in origin and were derived from gabbro-peridotitic magma dykes saturated in sulphides when intruded. The ore bodies show a clear zonation. Platinum group elements as well as pure gold are associated with high temperature hexagonal pyrrhotite. This pyrrhotite being of no use is generally discarded to the tailing dumps. Late hydrothermal phases are enriched in native silver, silver tellurides as well as electrum.
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spelling Zonal distribution of gold and platinium group elements in the Mondunguara deposits MozambiqueMozambiqueMondunguaraCopperGoldPlatinum group elementsThe Mondunguara copper mines are situated in mountainous terrain in west-central Mozambique. The mineralization consists of chalcopyrite, pyrrhotite, common pcntlandite, cobaltpentlandite, pyrite and several minor oxides and sulphides in tabular ore bodies deeping steep to the north. Gold was known to occur in small quantities but no systematic sampling and analysis for precious clements was ever done. Mineralogical and geological evidence has shown that the ores are magmatic in origin and were derived from gabbro-peridotitic magma dykes saturated in sulphides when intruded. The ore bodies show a clear zonation. Platinum group elements as well as pure gold are associated with high temperature hexagonal pyrrhotite. This pyrrhotite being of no use is generally discarded to the tailing dumps. Late hydrothermal phases are enriched in native silver, silver tellurides as well as electrum.RUNd'Orey, F. L. C.2010-12-14T15:40:58Z19921992-01-01T00:00:00Zinfo:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/articleapplication/pdfhttp://hdl.handle.net/10362/4494enginfo:eu-repo/semantics/openAccessreponame:Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos)instname:Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informaçãoinstacron:RCAAP2024-03-11T03:34:24Zoai:run.unl.pt:10362/4494Portal AgregadorONGhttps://www.rcaap.pt/oai/openaireopendoar:71602024-03-20T03:15:46.267271Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos) - Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informaçãofalse
dc.title.none.fl_str_mv Zonal distribution of gold and platinium group elements in the Mondunguara deposits Mozambique
title Zonal distribution of gold and platinium group elements in the Mondunguara deposits Mozambique
spellingShingle Zonal distribution of gold and platinium group elements in the Mondunguara deposits Mozambique
d'Orey, F. L. C.
Mozambique
Mondunguara
Copper
Gold
Platinum group elements
title_short Zonal distribution of gold and platinium group elements in the Mondunguara deposits Mozambique
title_full Zonal distribution of gold and platinium group elements in the Mondunguara deposits Mozambique
title_fullStr Zonal distribution of gold and platinium group elements in the Mondunguara deposits Mozambique
title_full_unstemmed Zonal distribution of gold and platinium group elements in the Mondunguara deposits Mozambique
title_sort Zonal distribution of gold and platinium group elements in the Mondunguara deposits Mozambique
author d'Orey, F. L. C.
author_facet d'Orey, F. L. C.
author_role author
dc.contributor.none.fl_str_mv RUN
dc.contributor.author.fl_str_mv d'Orey, F. L. C.
dc.subject.por.fl_str_mv Mozambique
Mondunguara
Copper
Gold
Platinum group elements
topic Mozambique
Mondunguara
Copper
Gold
Platinum group elements
description The Mondunguara copper mines are situated in mountainous terrain in west-central Mozambique. The mineralization consists of chalcopyrite, pyrrhotite, common pcntlandite, cobaltpentlandite, pyrite and several minor oxides and sulphides in tabular ore bodies deeping steep to the north. Gold was known to occur in small quantities but no systematic sampling and analysis for precious clements was ever done. Mineralogical and geological evidence has shown that the ores are magmatic in origin and were derived from gabbro-peridotitic magma dykes saturated in sulphides when intruded. The ore bodies show a clear zonation. Platinum group elements as well as pure gold are associated with high temperature hexagonal pyrrhotite. This pyrrhotite being of no use is generally discarded to the tailing dumps. Late hydrothermal phases are enriched in native silver, silver tellurides as well as electrum.
publishDate 1992
dc.date.none.fl_str_mv 1992
1992-01-01T00:00:00Z
2010-12-14T15:40:58Z
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url http://hdl.handle.net/10362/4494
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repository.name.fl_str_mv Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos) - Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informação
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