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Mineral Inventory of the Algares 30-Level Adit, Aljustrel Mine, Iberian Pyrite Belt, Portugal

2020Journal article Open access
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dc.contributor.authorSilva, Teresa
dc.contributor.authorMatos, João Xavier
dc.contributor.authorde Oliveira, Daniel Pipa Soares
dc.contributor.authorVeiga, JP
dc.contributor.authorMorais, Igor
dc.contributor.authorGonçalves, Pedro
dc.contributor.authorAlbardeiro, Luis
dc.date.accessioned2021-04-06T10:35:53Z
dc.date.available2021-04-06T10:35:53Z
dc.date.issued2020
dc.description.abstractABSTRACT: Mining activity in Algares (Aljustrel Mine, Portuguese sector of the Iberian Pyrite Belt, IPB) stems prior to Roman times. As the orebody is vertical and relatively thin, mining was carried out mainly along underground adits (galleries). Nowadays, the deposit is considered exhausted and the area is being rehabilitated for a different use. The Algares +30 level adit intersects two volcanic units of the IPB Volcano-Sedimentary Complex. 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 hydrothermal alteration. Along the mine adit, the geological sequence is affected by strong oxidation and supergene alteration, giving rise to the formation of secondary minerals through the oxidation of the sulphides. The most common minerals found were melanterite (FeSO4 center dot 7H(2)O) and chalcanthite (CuSO4 center dot 5H(2)O), forming essentially massive or crystalline aggregates, ranging from greenish to bluish colours. Melanterite from the walls revealed to be Cu-rich by opposition to that from stalactites/stalagmites formed below the old ore storage silo revealing the low-copper-grade ores exploited underground. The mineralogy of the efflorescent salts was used to ascertain the processes involved in their formation, and moreover, the inventory of minerals is presented, as well as their principal characteristics.pt_PT
dc.description.versioninfo:eu-repo/semantics/publishedVersionpt_PT
dc.identifier.citationSilva, Teresa P... [et.al.] - Mineral Inventory of the Algares 30-Level Adit, Aljustrel Mine, Iberian Pyrite Belt, Portugal. In: Minerals, 2020, Vol. 10, article nº 853pt_PT
dc.identifier.doi10.3390/min10100853pt_PT
dc.identifier.eissn2075-163X
dc.identifier.urihttp://hdl.handle.net/10400.9/3543
dc.language.isoengpt_PT
dc.peerreviewedyespt_PT
dc.publisherMDPIpt_PT
dc.relationFEDER (Fundo Europeu de Desenvolvimento Regional)/INTERREG POCTEP GEO-FPI-(Ref. 0052-GEO-FPI-5-E)pt_PT
dc.relationEXPLORA- Alentejo 2020, Portugal 2020 - Op-03-0145-FEDER-000025pt_PT
dc.relationInstitute of Nanostructures, Nanomodelling and Nanofabrication
dc.relation.publisherversionhttps://doi.org/10.3390/min10100853pt_PT
dc.rights.urihttp://creativecommons.org/licenses/by/4.0/pt_PT
dc.subjectGeoquímica mineralpt_PT
dc.subjectDepósitos mineraispt_PT
dc.subjectExploração mineirapt_PT
dc.subjectSulfuretospt_PT
dc.subjectAlgares (Concelho de Aljustrel, Portugal)pt_PT
dc.subjectFaixa Piritosa Ibéricapt_PT
dc.subjectMinas de Aljustrel (Portugal)pt_PT
dc.titleMineral Inventory of the Algares 30-Level Adit, Aljustrel Mine, Iberian Pyrite Belt, Portugalpt_PT
dc.typejournal article
dspace.entity.typePublication
oaire.awardTitleInstitute of Nanostructures, Nanomodelling and Nanofabrication
oaire.awardURIinfo:eu-repo/grantAgreement/FCT/6817 - DCRRNI ID/UID%2FCTM%2F50025%2F2019/PT
oaire.citation.titleMineralspt_PT
oaire.citation.volume10pt_PT
oaire.fundingStream6817 - DCRRNI ID
person.familyNameSilva
person.familyNameXavier Matos
person.familyNamede Oliveira
person.familyNameVeiga
person.familyNameMorais
person.familyNameGonçalves
person.familyNameAlbardeiro
person.givenNameTeresa
person.givenNameJoão Manuel
person.givenNameDaniel Pipa Soares
person.givenNameJoão Pedro
person.givenNameIgor
person.givenNamePedro
person.givenNameLuís
person.identifier2216267
person.identifier.ciencia-idB916-C501-8AA3
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person.identifier.ciencia-idCC13-E59F-611B
person.identifier.ciencia-idB81A-A94B-E72A
person.identifier.orcid0000-0002-0306-1015
person.identifier.orcid0000-0002-6108-1030
person.identifier.orcid0000-0002-6338-8845
person.identifier.orcid0000-0001-5324-1586
person.identifier.orcid0000-0001-9806-7139
person.identifier.orcid0000-0002-6556-6086
person.identifier.orcid0000-0002-3826-260X
person.identifier.ridL-9359-2013
person.identifier.ridJ-3681-2013
person.identifier.scopus-author-id7005146574
project.funder.identifierhttp://doi.org/10.13039/501100001871
project.funder.nameFundação para a Ciência e a Tecnologia
rcaap.rightsopenAccesspt_PT
rcaap.typearticlept_PT
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