 | | Journal (article/letter/editorial) | | and syenites of the Graciosa Province, southern Brazil Silvio R.F. Vlach a,⁎, Guilherme A.R. Gualda b...A-type rocks of the Graciosa Province, southern Brazil. Allanite–(Ce) is the main REE phase in the granites...syenites of the Graciosa A-type Province in southern Brazil. This contribution is aimed at characterizing the...recorded in some of the plutons (e.g. Morro Redondo Pluton) as limited occurrences of basic-intermediate and...plutons of the Graciosa A-type Province (southern Brazil) included in the present study — 1: Serra da Graciosa |  | | Journal (article/letter/editorial) | | Graciosa A-type granites and syenites (southern Brazil) from zircon U-Pb geochronology, chemistry, and...Graciosa A-type granites and syenites (southern Brazil) from zircon U-Pb geochronology, chemistry, and...Graciosa A-type granites and syenites (southern Brazil) from zircon U-Pb geochronology, chemistry, and...Grande do Norte, SC (1) Natal, RN 59078-970, Brazil. Department of Civil and Environmental Engineering...author CE PT E-mail addresses: ED 05508-080, Brazil. frederico@geologia.ufrn.br (F.C.J. Vilalva) simonetti |  | | 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) | | 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...event led to the complete replacement of magmatic biotite, plagioclase, and ilmenite, promoting major element...Campiglia andschematic (B) schematic geological [1]).pluton The Figure 1. (A) Location map of the areaarea...(after(after [1]). The pluton roof morphology is also reported (grey lines). (C) Cordierite‐biotite (Crd‐Bt) vs |  | | Journal (article/letter/editorial) | | MORRO REDONDO COMPLEX, GRACIOSA PROVINCE, SOUTHERN BRAZIL: OCCURRENCE AND COMPOSITIONAL DATA Frederico C...Universidade de São Paulo, São Paulo SP 05508-080, Brazil Antonio SIMONETTI Department of Civil Engineering...Morro Redondo Complex, Graciosa Province (Southern Brazil). Nacareniobsite-(Ce) compositions are very close...granites, Morro Redondo Complex, Graciosa Province, Brazil Introduction Nacareniobsite-(Ce), a sorosilicate...peralkaline granites from the complexes of Morro Redondo, Brazil (Vlach & Vilalva 2007) and Ambohimirahavavy, Madagascar |  | 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) | | allanite crystals. Moreover, primary magmatic biotite (annite) was partly transformed to acicular stilpnomelane...The investigated rock represents alkali-feldspar biotite granite, which belongs to the Upohlav type of Permian...cobble (BP-2 sample) represents alkali-feldspar biotite granite with medium-grained hypidiomorphic equigranular...K-feldspar exsolution lamellae—antiperthite (23.5), biotite (4.9), and epidote group minerals (0.2). Late anhedral...anhedral to subhedral intersticial Fe-rich biotite (annite) aggregates exhibit distinct pleochroism, |
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