 | | Journal (article/letter/editorial) | | University of São Paulo, São Paulo CEP 05508-080, Brazil; srfvlach@usp.br; Tel.: +55-11-97413-5902 Citation:...from the Corupá Pluton of “A-type” granites and syenites in Graciosa Province, Southern Brazil, and are...granite from Graciosa Province, South-Southeastern Brazil [30] is described. Morphological, textural, geochemical...Characterization The studied rock came from the Corupá Pluton (Figure 1), a Neoproterozoic (ca. 580 Ma, [25...Graciosa Province, South-Southeastern Brazil [30]. The pluton has a crescent outline and intrudes Archaean |  | | Journal (article/letter/editorial) | | along the northwestern margin of the Strange Lake pluton, contains a lens-shaped, pegmatite-rich domain...Geologic Setting and Lithology The Strange Lake pluton Strange Lake is a ~6-km-wide, mid-Proterozoic (1240...1989; Miller et al., 1997) peralkaline granitic pluton 6240000 6242000 located in northeastern Canada...along the border between Quebec and Labrador. The pluton consists of anorogenic (A-type) granites surrounded...exploitation, such as the peralkaline granitic pluton at Strange Lake (Salvi and Williams-Jones, 2006; |  | | Journal (article/letter/editorial) | | Department of Earth Sciences, University of Pisa, Via Santa Maria 53, 56126 Pisa, Italy; sergio.rocchi@unipi...metasomatizing fluids from an external source. The granitic pluton underwent intense metasomatism during post-magmatic...metasomatic event characterized by circulation of K-rich and Ca(-Mg)-rich fluids. A potassic metasomatic...major element mobilization and crystallization of K-feldspar, phlogopite, chlorite, titanite, and rutile.... The process resulted in significant gain of K, Rb, Ba, and Sr, accompanied by loss of Fe and Na, with |  | Uher, Pavel, Ondrejka, Martin, Bačík, Peter, Broska, Igor, Konečný, Patrik (2015) Britholite, monazite, REE carbonates, and calcite: Products of hydrothermal alteration of allanite and apatite in A-type granite from Stupné, Western Carpathians, Slovakia. Lithos, 236. 212-225 doi:10.1016/j.lithos.2015.09.005 | Journal (article/letter/editorial) | | 2009). The investigated rock represents alkali-feldspar biotite granite, which belongs to the Upohlav...(Sr Lα), PbCO3 (Pb Mα), albite (Na Kα), orthoclase (K Kα), LiF (F Kα), and NaCl (Cl Kα). Numerous mutual...with the following standards: orthoclase (Si Kα, K Kα), TiO2 (Ti Kα), Al2O3 (Al Kα), chromite or metallic...investigated cobble (BP-2 sample) represents alkali-feldspar biotite granite with medium-grained hypidiomorphic...anhedral to subhedral quartz (34.3); perthitic K-feldspar (most likely orthoclase) to hyalophane, Or82 |  | | Journal (issue) | | Mozambique ruby update • Multi-color-zoned quartz from Brazil • New sources of Nigerian sapphire • CVD-grown...the near-colorless range: 21% D–F, 67% G–J, and 10% K–N (Eaton-Magaña and Shigley, 2016). Figure 3. Left:...diamonds. G&G, Vol. 52, No. 2, pp. 195–196. Watanabe K., Lawson S.C., Isoya J., Kanda H., Sato Y. (1997)...DE COCHE Costa Rica Panama Venezuela Colombia Brazil Ecuador El Amparo Chacopata Taguapire Araya ...United Kingdom, p. 309. Kessrapong P., Lawanwong K., Sturman N. (2017) Pinctada maculata (pipi) bead-cultured |
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