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Volcanic facies architecture, hydrothermal alteration and subsea-floor replacem...
Rosa, Carlos J. P.; Relvas, Jorge M. R. S.; McPhie, Jocelyn; Pereira, Zélia; Oliveira, José Tomás; Pacheco, Nelson; Barriga, FernandoContribution to research project ARCHYMEDESII-POCTI/CTA/45873/2002. ; Three felsic volcanic sequences constitute the host succession to the Neves Corvo VHMS deposit. The lower volcanic sequence (late Famennian) consists of a rhyolitic fiamme-rich facies association that comprises polymictic and overall graded quartzphyric fiamme breccia units (up to 60 m thick). These units have pyroclastic origin and constitu...
Data: 2008
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Origem: Repositório do LNEG
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