 | | Report (chapter) | | and durability of granite stones in Braga monuments (NW Portugal) J. M. S. M A T I A S & C. A. S. A L...E S University o f Minho, CCA/CT, Gualtar, 4710 Braga, Portugal (e-maik juana_matias@hotmaiL com) Abstract:...forms that affect granite stones in Braga monuments. Braga (NW Portugal, Fig. 1) is located in the Central...ATLANTIC OCEAN Fig. 1. Location of the town of Braga. of Hercynian age. There are also Palaeozoic m...and identify decay patterns of granite stones in Braga monuments; (ii) to discuss stone susceptibility |  | | Journal (article/letter/editorial) | | aplite–pegmatite in the Gouveia area, central Portugal ANA M. R. NEIVA1,*, CARLOS L. GOMES2 and PAULO...Centre, University of Coimbra, 3030–790 Coimbra, Portugal *Corresponding author, e-mail: neiva@dct.uc.pt...Research Centre, University of Minho, Gualtar, 4710–057 Braga, Portugal 3 LNEG National Laboratory of Energy...Apartado 1089, 4466–956 S. Mamede de Infesta, Portugal ct ed pr Abstract: Columbite-group minerals...aplite–pegmatite dykes and sills from central Portugal, which have been studied in the last few years |  | 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) | | 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 União Temporária de Empresas IGME-LNEG-IIA...IGME-LNEG-IIA, 4466-956 S. Mamede de Infesta, Portugal e CEMMPRE, Department of Geology, University of...Trás-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, 4710‑057 Braga, Portugal...from Alijó-Sanfins and Rebordelo (Trás-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: 3–5...respectively. Standards used were orthoclase (Si, Al, K), albite (Na), apatite (Ca), MgO (Mg), Fe2O3 (Fe), bustamite...References for granite/tourmaline compositions Portugal (TM) Alijó-Sanfins Rebordelo Variscan Variscan |  | | Journal (article/letter/editorial) | | lepidolite dominated units and complex multistage albite + lepidolite units correspond to replacement units...Miarolitic pockets containing quartz, tourmaline, albite and interstitial muscovite occur in the inner intermediate...rock occurs and consists of quartz, K-feldspar, albite, tourmaline and oriented almandine-spessartine...of hydrothermal assemblages either with mainly albite or mainly lepidolite. They occur in the southern...and display pseudomorphic textures. Two types of albite-rich replacement units and two other types of lepidolite-rich |  | Lemos, Mariana, Valente, Teresa, Reis, Paula Marinho, Fonseca, Rita, Delbem, Itamar, Ventura, Juliana, Magalhães, Marcus (2020) Mineralogical and Geochemical Characterization of Gold Mining Tailings and Their Potential to Generate Acid Mine Drainage (Minas Gerais, Brazil) Minerals, 11 (1) 39 doi:10.3390/min11010039 | Journal (article/letter/editorial) | | University of Minho, Campus de Gualtar, Universidade do Minho, 4710-057 Braga, Portugal; id8548@alunos.uminho...Santiago, Universidade de Aveiro, 3810-193 Aveiro, Portugal Institute of Earth Sciences, Pole of University...of Évora, University of Évora, 7000-345 Évora, Portugal; rfonseca@uevora.pt Microscopy Center, Universidade...(Wt%) Quartz SiO2 15.6 55.8 Feldspar Group Albite Anorthite K feldspar NaAlSi3 O8 CaAl2 Si2 O8 KAlSi3 |  | | Journal (article/letter/editorial) | | coarse-grained quartz, orthoclase, microcline and albite, less abundant muscovite, biotite, pinkish andalusite...syenogranites and monzogranites. Feldspars have albite and orthoclase end-members. Coexisting amphiboles...pedogeochemical prospecting in the Agrochão-Murçós area (NE Portugal) M. ELISA P. GOMES12* AND PAULO J.C. FAVAS13 ...Trás-os-Montes e Alto Douro, 5001-801 Vila Real, Portugal; *correspondence: mgomes@utad.pt 2 Geosciences...elements in soils of the Agrochão-Murçós area (NE Portugal) were determined in order to define potential |  | | Book | | among silicate rocks. 1 Mineral syn1bols: A b - albite, A c t - actinolite, A,1d - andalusite, A11dr ~...2 H 2S 0 ° ° ° Muscovite Potassium feldspar Albite Phlogopite Annite Clinochlore ° ° Epidote Calcite...of polassium feldspar and sirnilar behavior ·of albite are characterized by the same features as that... biotite and chlorite, potassiu1n feldspar and albite, etc.). It is a mineral with the highest degree...quartz-biotite-microcline, quartz-biotite-albite, quartz-chlorite-albite and other 1netasomatites, usually confined |
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