Orange pickeringite from the algares 30-level adit, aljustrel mine, iberian pyrite belt, portugal
Autor(a) principal: | |
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Data de Publicação: | 2021 |
Outros Autores: | , , , , , , , |
Tipo de documento: | Artigo |
Idioma: | eng |
Título da fonte: | Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos) |
Texto Completo: | http://hdl.handle.net/10362/128464 |
Resumo: | R 0052-GEO-FPI-5-E ALT20-03-0145-FEDER-000025 Project (PA 18111) |
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Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos) |
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7160 |
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Orange pickeringite from the algares 30-level adit, aljustrel mine, iberian pyrite belt, portugalAlgares mineEfflorescent mineralsHalotrichiteIberian Pyrite Belt sulphide oresOrange pickeringiteUnderground miningGeotechnical Engineering and Engineering GeologyGeologyR 0052-GEO-FPI-5-E ALT20-03-0145-FEDER-000025 Project (PA 18111)The sheltered environment of the Algares +30 level adit (underground mine gallery) contributes to the preservation of secondary water-soluble minerals formed on the tunnel walls. The massive sulphide and related stockwork zone are hosted by the Mine Tuff volcanic unit and are exposed in the walls of the gallery, showing intense oxidation and hydrothermal alteration. Minerals from the halotrichite group were identified on the efflorescent salts, typically white fine-acicular crystals but also on aggregates with dark orange/brownish colour. Mineral characterization was performed using several methods and analytical techniques (XRD, XRF-WDS, SEM-EDS, DTA-TG), and the chemical formulas were calculated maintaining the ratio A:B∼= 1:2 in accordance with the general formula of the halotrichite group, AB2 (SO4 )4·22H2 O. This methodology allowed the assignment of the orange colour to the presence of trivalent iron on iron-rich pickeringite in partial substitution of aluminium.DCM - Departamento de Ciência dos MateriaisCENIMAT-i3N - Centro de Investigação de Materiais (Lab. Associado I3N)DCR - Departamento de Conservação e RestauroRUNSilva, Teresa P.Matos, João X.de Oliveira, DanielMorais, IgorGonçalves, PedroAlbardeiro, LuísCarvalho, FernandaMenda, Ugur D.Veiga, João P.2021-11-29T23:39:53Z2021-10-112021-10-11T00:00:00Zinfo:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/articleapplication/pdfhttp://hdl.handle.net/10362/128464eng2075-163XPURE: 35105723https://doi.org/10.3390/min11101115info: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:RCAAP2024-03-11T05:08:03Zoai:run.unl.pt:10362/128464Portal AgregadorONGhttps://www.rcaap.pt/oai/openaireopendoar:71602024-03-20T03:46:18.768534Repositório 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 |
Orange pickeringite from the algares 30-level adit, aljustrel mine, iberian pyrite belt, portugal |
title |
Orange pickeringite from the algares 30-level adit, aljustrel mine, iberian pyrite belt, portugal |
spellingShingle |
Orange pickeringite from the algares 30-level adit, aljustrel mine, iberian pyrite belt, portugal Silva, Teresa P. Algares mine Efflorescent minerals Halotrichite Iberian Pyrite Belt sulphide ores Orange pickeringite Underground mining Geotechnical Engineering and Engineering Geology Geology |
title_short |
Orange pickeringite from the algares 30-level adit, aljustrel mine, iberian pyrite belt, portugal |
title_full |
Orange pickeringite from the algares 30-level adit, aljustrel mine, iberian pyrite belt, portugal |
title_fullStr |
Orange pickeringite from the algares 30-level adit, aljustrel mine, iberian pyrite belt, portugal |
title_full_unstemmed |
Orange pickeringite from the algares 30-level adit, aljustrel mine, iberian pyrite belt, portugal |
title_sort |
Orange pickeringite from the algares 30-level adit, aljustrel mine, iberian pyrite belt, portugal |
author |
Silva, Teresa P. |
author_facet |
Silva, Teresa P. Matos, João X. de Oliveira, Daniel Morais, Igor Gonçalves, Pedro Albardeiro, Luís Carvalho, Fernanda Menda, Ugur D. Veiga, João P. |
author_role |
author |
author2 |
Matos, João X. de Oliveira, Daniel Morais, Igor Gonçalves, Pedro Albardeiro, Luís Carvalho, Fernanda Menda, Ugur D. Veiga, João P. |
author2_role |
author author author author author author author author |
dc.contributor.none.fl_str_mv |
DCM - Departamento de Ciência dos Materiais CENIMAT-i3N - Centro de Investigação de Materiais (Lab. Associado I3N) DCR - Departamento de Conservação e Restauro RUN |
dc.contributor.author.fl_str_mv |
Silva, Teresa P. Matos, João X. de Oliveira, Daniel Morais, Igor Gonçalves, Pedro Albardeiro, Luís Carvalho, Fernanda Menda, Ugur D. Veiga, João P. |
dc.subject.por.fl_str_mv |
Algares mine Efflorescent minerals Halotrichite Iberian Pyrite Belt sulphide ores Orange pickeringite Underground mining Geotechnical Engineering and Engineering Geology Geology |
topic |
Algares mine Efflorescent minerals Halotrichite Iberian Pyrite Belt sulphide ores Orange pickeringite Underground mining Geotechnical Engineering and Engineering Geology Geology |
description |
R 0052-GEO-FPI-5-E ALT20-03-0145-FEDER-000025 Project (PA 18111) |
publishDate |
2021 |
dc.date.none.fl_str_mv |
2021-11-29T23:39:53Z 2021-10-11 2021-10-11T00:00:00Z |
dc.type.status.fl_str_mv |
info:eu-repo/semantics/publishedVersion |
dc.type.driver.fl_str_mv |
info:eu-repo/semantics/article |
format |
article |
status_str |
publishedVersion |
dc.identifier.uri.fl_str_mv |
http://hdl.handle.net/10362/128464 |
url |
http://hdl.handle.net/10362/128464 |
dc.language.iso.fl_str_mv |
eng |
language |
eng |
dc.relation.none.fl_str_mv |
2075-163X PURE: 35105723 https://doi.org/10.3390/min11101115 |
dc.rights.driver.fl_str_mv |
info:eu-repo/semantics/openAccess |
eu_rights_str_mv |
openAccess |
dc.format.none.fl_str_mv |
application/pdf |
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 instacron:RCAAP |
instname_str |
Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informação |
instacron_str |
RCAAP |
institution |
RCAAP |
reponame_str |
Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos) |
collection |
Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos) |
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 |
repository.mail.fl_str_mv |
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1799138067001376768 |