 | | Journal (article/letter/editorial) | | from granitic aplite–pegmatite in the Gouveia area, central Portugal ANA M. R. NEIVA1,*, CARLOS L. GOMES2...Centre, University of Coimbra, 3030–790 Coimbra, Portugal *Corresponding author, e-mail: neiva@dct.uc.pt...University of Minho, Gualtar, 4710–057 Braga, Portugal 3 LNEG National Laboratory of Energy and Geology...Apartado 1089, 4466–956 S. Mamede de Infesta, Portugal ct ed pr Abstract: Columbite-group minerals...aplite and rare-element-class pegmatite in the Gouveia area show different zonation patterns. The ber |  | Neiva, Ana Margarida Ribeiro, Gomes, Carlos Leal, Silva, Paulo Bravo, Gomes, Maria Elisa Preto, dos Santos, António Carlos Tavares (2019) Geochemistry of granitic aplite-pegmatite dykes and sills and their minerals from the Gravanho-Gouveia area in Central Portugal. Geochemistry, 79 (2) 221-234 doi:10.1016/j.geoch.2019.01.001 | Journal (article/letter/editorial) | | and their minerals from the Gravanho-Gouveia area in Central Portugal Ana Margarida Ribeiro Neivaa,b, ,...Aveiro, Portugal Department of Earth Sciences, University of Coimbra, 3030-790, Coimbra, Portugal c Department...Braga, Portugal d União Temporária de Empresas IGME-LNEG-IIA, 4466-956 S. Mamede de Infesta, Portugal e CEMMPRE...Trás-os-Montes e Alto Douro, 5000-911, Vila Real, Portugal b ARTICLE INFO ABSTRACT Keywords: Variscan...have been distinguished in the Gravanho-Gouveia area of Portugal, based on field work, variation diagrams |  | 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. (2009) Geochemical and isotopic constraints on the petrogenesis of Early Ordovician granodiorite and Variscan two-mica granites from the Gouveia area, central Portugal. Lithos, 111 (3) 186-202 doi:10.1016/j.lithos.2009.01.005 | Journal (article/letter/editorial) | | Variscan two-mica granites from the Gouveia area, central Portugal A.M.R. Neiva a,⁎, I.S. Williams b,...Sciences, University of Coimbra, 3000-272 Coimbra, Portugal Research School of Earth Sciences, The Australian...Apartado 1089, 4466-956 S. Mamede de Infesta, Portugal d Department of Geology, University of Trás-os-Montes...Vila Real, Portugal e Polytechnic Institute of Castelo Branco, 6000-919 Castelo Branco, Portugal b c a r...Sn-bearing two-mica granites crop out in the Gouveia area, central Portugal. A SHRIMP U–Th–Pb zircon age from the |  | | Journal (article/letter/editorial) | | crystallization: Granites from Guarda-Sabugal area, central Portugal Ana Margarida Ribeiro Neiva a,∗...Centre, University of Coimbra, 3000-272 Coimbra, Portugal LNEG National Laboratory of Energy and Geology...Apartado 1089, 4466-956 S. Mamede de Infesta, Portugal c Department of Geosciences, University of Oslo...Variscan two-mica granite are recognized in the Guarda-Sabugal area. They intruded the Cambrian schist-metagraywacke...plagioclase becomes richer in anorthite and biotite and muscovite richer in Ti and Mg. Each of these granites evolved |  | | Journal (article/letter/editorial) | | concentrates from placers at Maçainhas (Central-East Portugal): insights for tantalum exploration J. Fernandes1...Alegre, 687, 4169-007 Porto, Portugal 2 Earth-Science Institute, Porto, Portugal Keywords Alluvial placers...SEM Columbite–tantalite Mineral inclusions Portugal Resumen Objetivo En la mitad del siglo XX, los...SEM columbotantalita inclusiones minerales Portugal 123 J Iber Geol 1 Introduction Tantalum’s...columbite–tantalites in pegmatites from the Central region of Portugal (Silva et al. 2007; Neiva and Ramos 2010; Ramos |  | Tvrdý, J, Sejkora, J, Rosseel, P, Dolníček, Z (2021) Ferraioloite from the Sítio do Castelo mine, Folgosinho (Guarda, Portugal), description and Raman spectroscopy. Journal of GEOsciences, 66 (3) 139-146 | Journal (article/letter/editorial) | | from the Sítio do Castelo mine, Folgosinho (Guarda, Portugal), description and Raman spectroscopy Jaromír...from the Sítio do Castelo mine, Folgosinho (Guarda, Portugal). It occurs as sky-blue, pearly lustrous,...phosphates from Sítio do Castelo mine, Folgosinho (Guarda, Portugal), a mineral phase corresponding to ferraioloite...the Serra da Estrela National Park in central Portugal, in the valley of the Freixo stream, about 500...walls of the fissures are rimmed by abundant muscovite blades up to 1 mm in size. The mineral forms very |  | | Journal (article/letter/editorial) | | their minerals from the Sabugal area, central Portugal Ana M. R. Neiva, Paulo B. Silva and João M. F...sills from the Sabugal area intruded a biotite > muscovite granite which is related to another two-mica granite... major element and Li contents of muscovite and lithian muscovite support this series. Least squares...of major elements indicate that the biotite > muscovite granite and aplite-pegmatite veins and sills are...lithian muscovite replaces primary muscovite and late lithium micas replace lithian muscovite. Complexely |  | Neiva, A.M.R., Williams, I.S., Lima, S.M., Teixeira, R.J.S. (2012) U–Pb and 39Ar/40Ar data constraining the ages of the source, emplacement and recrystallization/cooling events from late- to post-D3 Variscan granites of the Gouveia area, central Portugal. Lithos, 153. 72-83 doi:10.1016/j.lithos.2012.02.012 | Journal (article/letter/editorial) | | to post-D3 Variscan granites of the Gouveia area, central Portugal A.M.R. Neiva a,⁎, I.S. Williams b,...Centre, University of Coimbra, 3000-272 Coimbra, Portugal Research School of Earth Sciences, The Australian...Alto-Douro and Geosciences Centre, 5001-801 Vila Real, Portugal a r t i c l e i n f o Article history: Received...Available online 24 February 2012 Keywords: Zircon Muscovite Emplacement ages Inheritance Recrystallization/cooling...and post-D3 Sn-bearing twomica granites from the Gouveia area in the Central Iberian Zone. Inherited zircon |  | | Journal (article/letter/editorial) | | minerals from Arcozelo da Serra area (Gouveia, central Portugal) Ana M.R. NEIVA1 *, Maria E.P. GOMES2...Sciences, University of Coimbra, 3000-272 Coimbra, Portugal *Corresponding author, e-mail: neiva@dct.uc.pt... 5000-911 Vila Real, Portugal 3 INETI, 4466-956 S. Mamede de Infesta, Portugal Abstract: Granitic aplite-pegmatite...and a biotite ≈ muscovite granite from Arcozelo da Serra (Gouveia, Portugal). A muscovite > biotite granite...granodiorite-granite and muscovite > biotite granite; b) biotite≈muscovite granite and aplite-pegmatite |  | | Journal (article/letter/editorial) | | petrogenetic links with granites, Guarda-Belmonte area, central Portugal ANA M.R. NEIVA1,* and JOÃO M.F...Centre, University of Coimbra, 3000-272 Coimbra, Portugal *Corresponding author, e-mail: neiva@dct.uc.pt...Energy and geology 4466-956 S. Mamede de Infesta, Portugal Abstract: Granitic amblygonite-subtype and lepidolite-subtype...major elements of primary muscovite. The sills also contain Li-bearing muscovite, which has higher Mn, Li...contents and lower AlVI content than primary muscovite from G2, G3 and sills. All sills have pure albite |  | Teixeira, R.J.S., Neiva, A.M.R., Gomes, M.E.P., Corfu, F., Cuesta, A., Croudace, I.W. (2012) The role of fractional crystallization in the genesis of early syn-D3, tin-mineralized Variscan two-mica granites from the Carrazeda de Ansiães area, northern Portugal. Lithos, 153. 177-191 doi:10.1016/j.lithos.2012.04.024 | Journal (article/letter/editorial) | | granites from the Carrazeda de Ansiães area, northern Portugal R.J.S. Teixeira a,⁎, A.M.R. Neiva b, M.E.P. Gomes...and Geosciences Centre, University of Coimbra, Portugal Department of Earth Sciences, University of Coimbra...and Geosciences Centre, University of Coimbra, Portugal Department of Geosciences, University of Oslo...The granites have equal or higher amounts of muscovite than biotite, and contain surmicaceous enclaves...setting The Carrazeda the Ansiães area (Northern Portugal) is located within the autochthonous part of the |  | Prudêncio, M. Isabel, Sequeira Braga, M. Amália, Oliveira, Felisbela, Dias, M. Isabel, Delgado, Manuela, Martins, Manuela (2006) Raw Material Sources for the Roman Bracarense Ceramics (NW Iberian Peninsula) Clays and Clay Minerals, 54 (5) 638-649 doi:10.1346/ccmn.2006.0540510 | Journal (article/letter/editorial) | | TecnoloÂgico e Nuclear, EN 10, 2686-953 SacaveÂm, Portugal Centro de InvestigacËaÄo GeoloÂgica, Ordenamento...Braga, Portugal 3 Gabinete de Arqueologia, CaÃmara Municipal, 4760-110 V. N. FamalicaÄo, Portugal 4 Unidade...Arqueologia, Universidade do Minho, 4700-320 Braga, Portugal AbstractÐThe Bracarense ceramics are characterized...Augusta, the Roman town located in the north of Portugal, where this type of ceramic paste was first found...XRD. INTRODUCTION Bracara Augusta, Braga (NW Portugal), was a Roman town recognized as a center of production |  | | Journal (article/letter/editorial) | | granitic rocks from the Penafiel area, northern Portugal P.C.S. Carvalho a,⁎, A.M.R. Neiva a, M.M.V.G....Sciences, University of Coimbra, 3000‐272 Coimbra, Portugal Department of Geosciences, University of Oslo...worldwide with only three known cases in Portugal (Tourém, Guarda–Sabugal and Penafiel) and one in Argentina...metamorphic country rocks. Biotite > muscovite granite G1 and biotite > muscovite granodiorite G3 have similar...compositions, the compositions of feldspar, biotite, muscovite and tourmaline, the presence and type of xenocrystic |  | Pereira, L.C.J., Waerenborgh, J.C., Figueiredo, M.O., Prudêncio, M.I., Gouveia, M.A., Silva, T.P., Morgado, I., Lopes, A. (1993) A comparative study of biotite weathering from two different granitic rocks. Chemical Geology, 107 (3) 301-306 doi:10.1016/0009-2541(93)90196-p | Journal (article/letter/editorial) | | Waerenborgh a, M.O. Figueiredob, M.I. Prud~ncio a, M.A. Gouveia a, T.P. Silva b, I. Morgado a and A. Lopesa aDept...SacavOm, Portugal bCentro Crist. Min., HCT, Alam. D. Afonso Henriques 41-4-E, Lisboa, Portugal (Received...Megalithic m o n u m e n t s from Alentejo, south Portugal, known as "Anta do Tapadao" (Crato) and "Anta...contract CT90-0110. ering profile studied by Gouveia et al. ( 1993 in this issue); it has a fine- to...constituents are quartz, Kfeldspar, plagioclase, muscovite and biotite. REE patterns show a large Eu anomaly |  | | Journal (article/letter/editorial) | | during weathering of four granitoids in central Portugal C.H. van der Weijden *, R.D. van der Weijden Department...studied in four different granitoids in central Portugal. Samples of fresh and weathered rock parts were...Banfield and Eggleton (1989), Braun et al. (1993), Gouveia et al. (1993), and Mongelli ( 1993). Although these...occasionally orthoclase), quartz, biotite, and muscovite. The three granites belong to a group which contains...by 10 mm), quartz (37 mm), biotite ( l-3 mm), muscovite ( l-5 mm). Andalusite and red-brown garnet are |  | | Journal (article/letter/editorial) | | Evans, 2010): Ab, albite; Kfs, K-feldspar; Ms, muscovite; Pl, plagioclase; Qz, quartz; Tpz, topaz; Znw...Czech Republic (Jarchovský, 2006); (E) Quartz-muscovite-topaz greisen from the Vykmanov granite stock...association of anhedral to subhedral topaz and muscovite substituting ur plagioclase in the greisenized...augelite; Fl, fluorite; Kfs, K-feldspar; Ms, muscovite; Pl, plagioclase; Qz, quartz; Tpz, topaz; Znw... 13 13.18 Ramos et al. (1995), Guarda-Belmonte area, Portugal Ramos (2007) Lepidolite-subtype aplite-pegmatite |  | Neiva, Ana Margarida Ribeiro, Carvalho, Paula Cristina Simões de, Antunes, Isabel Margarida Horta Ribeiro, Santos, António Carlos Tavares dos, Cabral-Pinto, Marina Marques da Silva (2015) Spatial and temporal variability of surface water and groundwater before and after the remediation of a Portuguese uranium mine area. Geochemistry, 75 (3) 345-356 doi:10.1016/j.chemer.2015.06.001 | Journal (article/letter/editorial) | | Centre, University of Coimbra, 3030-790, Coimbra, Portugal Polytechnic Institute of Castelo Branco and CIGAR...Geo-Environmental and Resources Research Center, Portugal c Department of Geosciences, University of Aveiro...Neuroscience and Cell Biology, University of Coimbra, Portugal b a r t i c l e i n f o Article history: Received...Central Portugal a b s t r a c t The old Senhora das Fontes uranium mine, in central Portugal, consists...(Mkandawire, 2013; Skipperud et al., 2013). In Portugal, there have been about 60 uranium mines exploited |  | | Journal (article/letter/editorial) | | Magnetic Fabric of Capinha Massif (Fundão, Central Portugal): Genesis, Emplacement and Relation with W–Sn...Porto, Rua do Campo Alegre 687, 4169-007 Porto, Portugal; hsantov@fc.up.pt (H.S.); fmnoronh@fc.up.pt (F...Porto, Rua do Campo Alegre 687, 4169-007 Porto, Portugal Correspondence: ana.goncalves@fc.up.pt Received:...late-orogenic biotite-rich granites and biotite-muscovite granites [36–38]. The Fundão–Serra da Estrela–Capinha...) [40,41,44–46] in NW Spain and N and Central Portugal, corresponding to the Galiza-Trás-os-Montes Zone |  | Antunes, Isabel Margarida Horta Ribeiro, Neiva, Ana Margarida Ribeiro, Ramos, João Manuel Farinha, Silva, Paulo Bravo, Silva, Maria Manuela Vinha Guerreiro, Corfu, Fernando (2013) Petrogenetic links between lepidolite-subtype aplite-pegmatite, aplite veins and associated granites at Segura (central Portugal) Geochemistry, 73 (3) 323-341 doi:10.1016/j.chemer.2012.12.003 | Journal (article/letter/editorial) | | veins and associated granites at Segura (central Portugal) Isabel Margarida Horta Ribeiro Antunes a,∗ ,...Institute of Castelo Branco, 6001-909 Castelo Branco, Portugal Department of Earth Sciences and Geosciences Centre...Centre, University of Coimbra, 3000-272 Coimbra, Portugal c LNEG National Laboratory of Energy and Geology...Apartado 1089, 4466-956 S. Mamede de Infesta, Portugal d Department of Geosciences, University of Oslo...also intruded the granites. Two-mica granite and muscovite granite have similar ages of 311.0 ± 0.5 Ma and |  | | Report (chapter) | | rocks commonly reached sillimanite + K-feldspar, muscovite-out conditions and locally granulitic (biotite-out)...+ K-feldspar + cordierite or spinel + quartz. Muscovite (and locally biotite) dehydration melting produced...probably by reactions driven by the decomposition of muscovite. Granitoids of the two previous groups were deformed...(leucogranite, 10) Neira (granodiorite-adamellite, 4) Gouveia (leucogranite, 13) Ancares (leucogranite, 10) Paufito...Linares (granodiorite, 11) Ourense (leucogranite, 11) Guarda (monzogranite, 11) Vila Pouca de Aguiar (biotite |  | | Journal (article/letter/editorial) | | associated with the Argemela microgranite (Central Portugal) L. Lima1,2 · A. Guedes1,2 · F. Noronha1,2 Received:... · Fluid inclusions · Argemela microgranite · Portugal Resumen El microgranito de Argemela es un granito...Porto, Rua do Campo Alegre 687, 4169‑007 Porto, Portugal 2 Departamento de Geociências, Ambiente e Ordenamento...Porto, Rua do Campo Alegre 687, 4169‑007 Porto, Portugal 13 Vol.:(0123456789) Journal of Iberian Geology...inclusiones fluidas · microgranito de Argemela · Portugal 1 Introduction Metal concentrations present in |  | | Journal (article/letter/editorial) | | Unexpected Case of a Magnetite-Series Granitoid in Portugal Joana M. Dias 1 , Cláudia Cruz 1,2, * , Helena...Porto, Rua do Campo Alegre 687, 4169-007 Porto, Portugal; up201810062@edu.fc.up.pt (J.M.D.); hsantov@fc...Porto, Rua do Campo Alegre 687, 4169-007 Porto, Portugal Correspondence: claudiacruz@fc.up.pt Abstract:...Iberian massif. a Magnetite-Series Granitoid in Portugal. Minerals 2022, 12, 440. https://doi.org/10.3390/...describedAfter withDages 360–337 Ma, 337–320 Ma, and Portugal and especially in the study area, theare CIZ is |  | | Journal (article/letter/editorial) | | Centre, University of Coimbra, 3000–272 Coimbra, Portugal *Corresponding author, e-mail: neiva@dct.uc.pt...scale and within each zone that muscovite evolved to lithian muscovite and the latter to ‘‘mixed form’’...this zone of granitic pegmatites. Key-words: muscovite, lithium micas, albite, K-feldspar, columbite–tantalite...cm), but it also contains Kfeldspar, muscovite, lithian muscovite, ‘‘mixed form’’ (with both dioctahedral...columbite–tantalite, rutile, uranium minerals and secondary muscovite and cookeite (an alteration eschweizerbart_xxx |  | | Journal (article/letter/editorial) | | the Pavia granitic pegmatites (Ossa-Morena Zone, Portugal) Selma M. Lima a,∗ , Ana M.R. Neiva b , João M...Coimbra, Portugal c LNEG, Rua da Amieira, Apartado 1089, 4466-901 S. Mamede de Infesta, Portugal d University...the Pavia granitic pegmatites (Ossa-Morena Zone, Portugal). Chemie Erde Geochemistry (2014), http://dx.doi...study conducted in the Pavia pluton (western OMZ, Portugal) and whose main purpose is to reconstruct its...in the western limit of the OMZ (Évora Massif, Portugal). It is an east-west elongated body of tonalitic |  | | Catalog/List | | Nant Francon formation small 2x3 inch £15 32 MUSCOVITE variety GILBERTITE ,quite attractive, rich yellow...mauve mass on Ix half inch matrix Folgosinho Gouveia Portugal £6 39 FLUOCERITE one or two pink spots in...lx2 £4 ALMANDINE pegmatite coarse microcline, Muscovite and some small garnets _g_uite an atj;r_a. Q.tive |
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Gouveia, Guarda, Portugal