 | | Journal (article/letter/editorial) | | apliteāpegmatite in the Gouveia area, central Portugal ANA M. R. NEIVA1,*, CARLOS L. GOMES2 and PAULO...Centre, University of Coimbra, 3030ā790 Coimbra, Portugal *Corresponding author, e-mail: neiva@dct.uc.pt...Research Centre, University of Minho, Gualtar, 4710ā057 Braga, Portugal 3 LNEG National Laboratory of Energy...Apartado 1089, 4466ā956 S. Mamede de Infesta, Portugal ct ed pr Abstract: Columbite-group minerals...apliteāpegmatite dykes and sills from central Portugal, which have been studied in the last few years |  | | Journal (article/letter/editorial) | | compositional trend beginning with magmatic schorl from the line rock, schorl, elbaite and āļ¬uor-elbaiteā from the...conservation and migration took place in the magma. Schorl crystals from the line rock are oscillatory zoned...diffuse through liquid. Some individual crystals of schorl and āļ¬uor-elbaiteā or only of āļ¬uor-elbaiteā from...bulk magma. The main substitution mechanism in schorl and āļ¬uor-elbaiteā is (Li1.5Al1.5)(Fe2+)-3 at the...substitution in this tourmaline is FeMgā1. Key words: schorl, elbaite, liddicoatite, zoned crystals, granitic |  | Neiva, Ana Margarida Ribeiro, Gomes, Carlos Leal, Silva, Paulo Bravo, Gomes, Maria Elisa Preto, dos Santos, AntĆ³nio 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) | | minerals from the Gravanho-Gouveia area in Central Portugal Ana Margarida Ribeiro Neivaa,b, , Carlos Leal...Aveiro, Portugal Department of Earth Sciences, University of Coimbra, 3030-790, Coimbra, Portugal c Department...Earth Sciences, University of Minho, Gualtar, 4710-057, Braga, Portugal d UniĆ£o TemporĆ”ria de Empresas IGME-LNEG-IIA...IGME-LNEG-IIA, 4466-956 S. Mamede de Infesta, Portugal e CEMMPRE, Department of Geology, University of...TrĆ”s-os-Montes e Alto Douro, 5000-911, Vila Real, Portugal b ARTICLE INFO ABSTRACT Keywords: Variscan |  | | Journal (article/letter/editorial) | | Lisbon, Portugal 2 ICT Research Centre/Universidade do Minho, Campus de Gualtar, 4710ā057 Braga, Portugal...from AlijĆ³-Sanfins and Rebordelo (TrĆ”s-os-Montes, Portugal), and from the Alamo Complex and several Araya-type...Nacional de Energia e Geologia (S. Mamede de Infesta, Portugal), under the following analytical conditions: 3ā5...References for granite/tourmaline compositions Portugal (TM) AlijĆ³-Sanfins Rebordelo Variscan Variscan...granites M granites BM granites Leucogranites Portugal (CIZ) Spain (CIZ) SW England South Africa Rwanda |
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Gualtar, Braga, Braga, Portugal