Search Results - "Silva, M.M.V.G."

Contaminated water, stream sediments and soils close to the abandoned Pinhal do Souto uranium mine, central Portugal by Neiva, A.M.R., Carvalho, P.C.S., Antunes, I.M.H.R., Silva, M.M.V.G., Santos, A.C.T., Cabral Pinto, M.M.S., Cunha, P.P.

“…The Pinhal do Souto mine exploited a quartz vein containing uranium minerals, mainly autunite and torbernite. This vein intersects a two-mica granite…”
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The mineralized veins and the impact of old mine workings on the environment at Segura, central Portugal by Antunes, I.M.H.R, Neiva, A.M.R, Silva, M.M.V.G

“…At Segura, granitic pegmatite veins with cassiterite and lepidolite, hydrothermal Sn–W quartz veins and Ba–Pb–Zn quartz veins intruded the Cambrian…”
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Heavy metals of Santiago Island (Cape Verde) top soils: Estimated Background Value maps and environmental risk assessment by Cabral Pinto, M.M.S., Ferreira da Silva, E., Silva, M.M.V.G., Melo-Gonçalves, P.

“…•We present maps of Estimated Background Values of selected metals in Santiago soils.•We carried out risk assessment on the soils.•Santiago soils present high…”
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Geochemical and isotopic constraints on the petrogenesis of Early Ordovician granodiorite and Variscan two-mica granites from the Gouveia area, central Portugal by Neiva, A.M.R., Williams, I.S., Ramos, J.M.F., Gomes, M.E.P., Silva, M.M.V.G., Antunes, I.M.H.R.

“…A biotite granodiorite and seven Sn-bearing two-mica granites crop out in the Gouveia area, central Portugal. A SHRIMP U–Th–Pb zircon age from the…”
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The genesis of I- and S-type granitoid rocks of the Early Ordovician Oledo pluton, Central Iberian Zone (central Portugal) by Antunes, I.M.H.R., Neiva, A.M.R., Silva, M.M.V.G., Corfu, F.

“…The Early Ordovician Oledo pluton consists of four distinct granodioritic to granitic phase (G1–G4), which intruded a Cambrian schist-metagraywacke complex,…”
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A unique sequential melting mechanism for the generation of anatectic granitic rocks from the Penafiel area, northern Portugal by Carvalho, P.C.S., Neiva, A.M.R., Silva, M.M.V.G., Corfu, F.

“…Granitic rocks derived by sequential partial melting are very uncommon occurrences worldwide with only three known cases in Portugal (Tourém, Guarda–Sabugal…”
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Geochemistry of S-type granitic rocks from the reversely zoned Castelo Branco pluton (central Portugal) by Antunes, I.M.H.R., Neiva, A.M.R., Silva, M.M.V.G., Corfu, F.

“…The zoned pluton from Castelo Branco consists of Variscan peraluminous S-type granitic rocks. A muscovite>biotite granite in the pluton's core is surrounded…”
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Metal and metalloid leaching from tailings into streamwater and sediments in the old Ag–Pb–Zn Terramonte mine, northern Portugal by Carvalho, P. C. S, Neiva, A. M. R, Silva, M. M. V. G, Antunes, I. M. H. R

“…Tailings deposited over the Castanheira, a stream which flows through the old Ag–Pb–Zn Terramonte mine area, showed a great potential environmental risk due to…”
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Petrogenetic links between lepidolite-subtype aplite-pegmatite, aplite veins and associated granites at Segura (central Portugal) by Antunes, Isabel Margarida Horta Ribeiro, Neiva, Ana Margarida Ribeiro, Ramos, João Manuel Farinha, Silva, Paulo Bravo, Silva, Maria Manuela Vinha Guerreiro, Corfu, Fernando

“…In the Segura area, Variscan S-type granites, aplite veins and lepidolite-subtype granitic aplite-pegmatite veins intruded the Cambrian schist-metagraywacke…”
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Geochemistry of enclaves and host granites from the Nelas area, central Portugal by Silva, M.M.V.G, Neiva, A.M.R, Whitehouse, M.J

“…Tonalitic, granodioritic and monzogranitic enclaves occur in the Hercynian peraluminous porphyritic biotite granite and biotite–muscovite granite from the…”
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Geochemistry of Coexisting Biotite and Muscovite of Portuguese Peraluminous Granitic Differentiation Series by Neiva, A.M.R., Silva, M.M.V.G., Gomes, M.E.P., Campos, T.F.C.

“…In nine Portugese peraluminous Hercynian granitic series of differentiation, Cr, V, Sc and Ba decrease, whereas Nb, Zn, Sn, Li, Rb and Cs increase in the…”
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