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Gold in the Lousal mine, Iberian Pyrite Belt, Portugal

2011-09Conference object Open access
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dc.contributor.authorde Oliveira, Daniel Pipa Soares
dc.contributor.authorGuimarães, Fernanda
dc.contributor.authorMatos, João Xavier
dc.contributor.authorRosa, Diogo
dc.contributor.authorRosa, Carlos J. P.
dc.contributor.authorCastelo-Branco, José Mário
dc.date.accessioned2014-02-25T18:24:09Z
dc.date.available2014-02-25T18:24:09Z
dc.date.issued2011-09
dc.description.abstractRecent exploration boreholes in the Lousal Mine, located within the Portuguese sector of the Iberian Pyrite Belt (IPB) yielded marked concentrations in gold/electrum in a section of core consisting of banded metasediments with massive pyrite. Preliminary research indicates that the gold is associated with native bismuth and bismuthinite and is clearly late in the paragenetic sequence occurring in fine chalcopyrite (± covellite)-bismuthinite-gold filled veinlets within the dominant and more massive pyrite. The pale yellow gold grains are fine, seldom reaching more than 6 ..m in length and half of that in thickness. EPMA results indicate that silver concentrations in gold grains can be as high as 27 wt.%. The results show similarities with conclusions drawn from the IPB on the Spanish side where gold of Co-Bi geochemical association is found as electrum with abundant to common Co and Bi minerals. These associated with pyrite and/or chalcopyrite are characterized by an abundance of sedimentary facies and show that the gold association formed at high temperature (>300 °C) during the initial phases of massive sulphide formation.por
dc.identifier.citationOliveira, Daniel P. S. de... [et al.] - Gold in the Lousal mine, Iberian Pyrite Belt, Portugal. In: 11th SGA Biennial Meeting : Let's Talk Ore Deposits, Antofagasta, Chile, 26-29th September 2011, p. 757-759por
dc.identifier.urihttp://hdl.handle.net/10400.9/2223
dc.language.isoengpor
dc.subjectJazigos mineraispor
dc.subjectOuropor
dc.subjectMina do Lousal (concelho de Grândola, Portugal)por
dc.subjectFaixa Piritosa Ibéricapor
dc.titleGold in the Lousal mine, Iberian Pyrite Belt, Portugalpor
dc.typeconference object
dspace.entity.typePublication
oaire.citation.conferencePlaceAntofagasta, Chilepor
oaire.citation.title11th SGA Biennial Meeting : Let's Talk Ore Depositspor
person.familyNamede Oliveira
person.familyNameGuimarães
person.familyNameXavier Matos
person.familyNameRosa
person.givenNameDaniel Pipa Soares
person.givenNameFernanda
person.givenNameJoão Manuel
person.givenNameDiogo
person.identifier2216267
person.identifier.ciencia-idA11D-DDD7-29F2
person.identifier.ciencia-idFE16-BE78-D4EA
person.identifier.ciencia-idCC15-B6CC-084A
person.identifier.orcid0000-0002-6338-8845
person.identifier.orcid0000-0001-6961-9256
person.identifier.orcid0000-0002-6108-1030
person.identifier.orcid0000-0003-0160-5215
person.identifier.ridI-4511-2017
person.identifier.scopus-author-id7006112964
rcaap.rightsopenAccesspor
rcaap.typeconferenceObjectpor
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relation.isAuthorOfPublicationc2c84ba4-fe6b-4c34-8a68-ffc0ad4ab352
relation.isAuthorOfPublicationc61d09b7-2204-4dd9-beb3-5574983ce60c
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relation.isAuthorOfPublication.latestForDiscoveryc61d09b7-2204-4dd9-beb3-5574983ce60c

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