Geochemistry of minerals, waters and weathering from the Fonte Santa mine area (NE of Portugal)

Detalhes bibliográficos
Autor(a) principal: Gomes, M.E.P.
Data de Publicação: 2009
Outros Autores: Antunes, I.M.H.R., Neiva, A.M.R., Pacheco, F.A.L., Silva, P.B.
Tipo de documento: Artigo
Idioma: eng
Título da fonte: Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos)
Texto Completo: http://hdl.handle.net/10400.11/1603
Resumo: The quartz veins containing scheelite from Fonte Santa mine area were exploited for W between 1942 and 1982. At the end of November 2006, a flood event damaged the dam land of Fonte Santa mine and metal content of water increased. Fonte Santa mine area cuts the quartzites close to the Fonte Santa muscovite granite. The granite contains quartz, microcline, albite, muscovite, chlorite, columbite-tantalite, volframite, W-ixiolite and ilmenite. The quartz veins contain muscovite, chlorite, tourmaline, scheelite, pyrrhotite, pyrite, sphalerite, chalcopyrite, galena, arsenopyrite, magnetite, jarosite, phosphates of Pb, Fe and Al. The waters related to the Fonte Santa mine are poorly mineralized, with electrical conductivity < 965 μS / cm, of mixed type or HCO3 - and SO4 2- types. These waters have Fe and Mn contents that forbid to use that for human consumption and agriculture. Sodium, Mg and K water contents are associated with the alteration of albite, chlorite and muscovite of country rock, while Ca is related to the W-bearing quartz veins.
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spelling Geochemistry of minerals, waters and weathering from the Fonte Santa mine area (NE of Portugal)MineralizationScheeliteWaterContaminationThe quartz veins containing scheelite from Fonte Santa mine area were exploited for W between 1942 and 1982. At the end of November 2006, a flood event damaged the dam land of Fonte Santa mine and metal content of water increased. Fonte Santa mine area cuts the quartzites close to the Fonte Santa muscovite granite. The granite contains quartz, microcline, albite, muscovite, chlorite, columbite-tantalite, volframite, W-ixiolite and ilmenite. The quartz veins contain muscovite, chlorite, tourmaline, scheelite, pyrrhotite, pyrite, sphalerite, chalcopyrite, galena, arsenopyrite, magnetite, jarosite, phosphates of Pb, Fe and Al. The waters related to the Fonte Santa mine are poorly mineralized, with electrical conductivity < 965 μS / cm, of mixed type or HCO3 - and SO4 2- types. These waters have Fe and Mn contents that forbid to use that for human consumption and agriculture. Sodium, Mg and K water contents are associated with the alteration of albite, chlorite and muscovite of country rock, while Ca is related to the W-bearing quartz veins.Repositório Científico do Instituto Politécnico de Castelo BrancoGomes, M.E.P.Antunes, I.M.H.R.Neiva, A.M.R.Pacheco, F.A.L.Silva, P.B.2012-12-17T17:47:21Z20092009-01-01T00:00:00Zinfo:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/articleapplication/pdfhttp://hdl.handle.net/10400.11/1603engGOMES, M.E. [et al.] (2009) - Geochemistry of minerals, waters and weathering from the Fonte Santa mine area (NE of Portugal). In Congresso Ibérico, 7, Congresso Nacional de Geoquímica, 10, Soria, Espanha. Comunicação.info: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:RCAAP2023-01-16T11:38:57ZPortal AgregadorONG
dc.title.none.fl_str_mv Geochemistry of minerals, waters and weathering from the Fonte Santa mine area (NE of Portugal)
title Geochemistry of minerals, waters and weathering from the Fonte Santa mine area (NE of Portugal)
spellingShingle Geochemistry of minerals, waters and weathering from the Fonte Santa mine area (NE of Portugal)
Gomes, M.E.P.
Mineralization
Scheelite
Water
Contamination
title_short Geochemistry of minerals, waters and weathering from the Fonte Santa mine area (NE of Portugal)
title_full Geochemistry of minerals, waters and weathering from the Fonte Santa mine area (NE of Portugal)
title_fullStr Geochemistry of minerals, waters and weathering from the Fonte Santa mine area (NE of Portugal)
title_full_unstemmed Geochemistry of minerals, waters and weathering from the Fonte Santa mine area (NE of Portugal)
title_sort Geochemistry of minerals, waters and weathering from the Fonte Santa mine area (NE of Portugal)
author Gomes, M.E.P.
author_facet Gomes, M.E.P.
Antunes, I.M.H.R.
Neiva, A.M.R.
Pacheco, F.A.L.
Silva, P.B.
author_role author
author2 Antunes, I.M.H.R.
Neiva, A.M.R.
Pacheco, F.A.L.
Silva, P.B.
author2_role author
author
author
author
dc.contributor.none.fl_str_mv Repositório Científico do Instituto Politécnico de Castelo Branco
dc.contributor.author.fl_str_mv Gomes, M.E.P.
Antunes, I.M.H.R.
Neiva, A.M.R.
Pacheco, F.A.L.
Silva, P.B.
dc.subject.por.fl_str_mv Mineralization
Scheelite
Water
Contamination
topic Mineralization
Scheelite
Water
Contamination
description The quartz veins containing scheelite from Fonte Santa mine area were exploited for W between 1942 and 1982. At the end of November 2006, a flood event damaged the dam land of Fonte Santa mine and metal content of water increased. Fonte Santa mine area cuts the quartzites close to the Fonte Santa muscovite granite. The granite contains quartz, microcline, albite, muscovite, chlorite, columbite-tantalite, volframite, W-ixiolite and ilmenite. The quartz veins contain muscovite, chlorite, tourmaline, scheelite, pyrrhotite, pyrite, sphalerite, chalcopyrite, galena, arsenopyrite, magnetite, jarosite, phosphates of Pb, Fe and Al. The waters related to the Fonte Santa mine are poorly mineralized, with electrical conductivity < 965 μS / cm, of mixed type or HCO3 - and SO4 2- types. These waters have Fe and Mn contents that forbid to use that for human consumption and agriculture. Sodium, Mg and K water contents are associated with the alteration of albite, chlorite and muscovite of country rock, while Ca is related to the W-bearing quartz veins.
publishDate 2009
dc.date.none.fl_str_mv 2009
2009-01-01T00:00:00Z
2012-12-17T17:47:21Z
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status_str publishedVersion
dc.identifier.uri.fl_str_mv http://hdl.handle.net/10400.11/1603
url http://hdl.handle.net/10400.11/1603
dc.language.iso.fl_str_mv eng
language eng
dc.relation.none.fl_str_mv GOMES, M.E. [et al.] (2009) - Geochemistry of minerals, waters and weathering from the Fonte Santa mine area (NE of Portugal). In Congresso Ibérico, 7, Congresso Nacional de Geoquímica, 10, Soria, Espanha. Comunicação.
dc.rights.driver.fl_str_mv info:eu-repo/semantics/openAccess
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dc.source.none.fl_str_mv reponame:Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos)
instname:Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informação
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