 | Brigatti, Maria Ranca, Malferrari, Daniele, Medici, Luca, Ottolini, Luisa, Poppi, Luciano (2004) Crystal chemistry of apatites from the Tapira carbonatite complex, Brazil. European Journal of Mineralogy, 16 (4) 677-685 doi:10.1127/0935-1221/2004/0016-0677 | Journal (article/letter/editorial) | | Crystal chemistry of apatites from the Tapira carbonatite complex, Brazil MARIA FRANCA BRIGATTI1,*, DANIELE...fluorapatite crystals from the Tapira alkaline carbonatitic complex (Brazil) was investigated by electron...the Tapira carbonatitic magma. The very low Cl/F ratio suggests that the crystallization of Tapira pluton...Stoppa & Liu, 1995; Pan & Fleet, 2002). The Tapira Complex is located in the southern part of a Late-Cretaceous...Late-Cretaceous, carbonatite-bearing alkaline plutonic complex which, together with kamafugites, lamproites and |  | | Journal (article/letter/editorial) | | significanceof Fe3+-richphlogopite from the Tapira carbonatitecomplex, Brazil M,c.RrA,Fuxcl Bnrclrrrrr Lucl Mnorcrrr...Fe3*-rich phlogopite from the Tapira alkaline-carbonatite complex (Brazil) to assessthe petrological significance...significance and genetic conditions ofthese rocks. The Tapira complex consistsofa layered intrusion composed mainly...the liquid. The crystal-structurerefinementsof Tapira phlogopite show that Fe3+substitutesfor Si in tetrahedral...composition (Donnay etal. 1964); (3) a ferphlogopite and biotite, are important phases in many KFe3+(Fe3+Si3)O,o(OH) |  | Barbosa, Elisa Soares Rocha, Brod, José Affonso, Junqueira-Brod, Tereza Cristina, Dantas, Elton Luiz, Cordeiro, Pedro Filipe de Oliveira, Gomide, Caroline Siqueira (2012) Bebedourite from its type area (Salitre I complex): A key petrogenetic series in the Late-Cretaceous Alto Paranaíba kamafugite–carbonatite–phoscorite association, Central Brazil. Lithos, 144. 56-72 doi:10.1016/j.lithos.2012.04.013 | Journal (article/letter/editorial) | | com/locate/lithos Bebedourite from its type area (Salitre I complex): A key petrogenetic series in the Late-Cretaceous...kamafugite–carbonatite–phoscorite association, Central Brazil Elisa Soares Rocha Barbosa a, b, c,⁎, José Affonso...Federal de Goiás (UFG), CEP 74.001-970, Goiânia, GO, Brazil Instituto de Geociências, Universidade de Brasília...Brasília, Campus Asa Norte, 70.910-900 Brasília, DF, Brazil CNPq - Conselho Nacional para o Desenvolvimento...Desenvolvimento Científico e Tecnológico, Brasília, DF, Brazil a r t i c l e i n f o Article history: Received 30 |  | | Journal (article/letter/editorial) | | THE ALTO PARANAÍBA IGNEOUS PROVINCE, SOUTHEASTERN BRAZIL MARIA FRANCA BRIGATTI§ Dipartimento di Scienze...the Alto Paranaíba Igneous Province (southeastern Brazil), were refined from single-crystal X-ray data in...structure, chemical composition, Alto Paranaíba, Brazil. SOMMAIRE Nous avons affiné la structure cristalline...alkalinecarbonatite rocks in the Alto Paranaíba Igneous Province, Brazil (APIP, Gibson et al. 1995) show a remarkable variation...2001) have focused on micas from the Tapira carbonatite complex and focused on the crystal chemistry |  | | Report (issue) | | ~dirondacks, New York -------------7. Between rutile and biotite in some gneisses from Mason Mountain, Macon County...important to the geochemistry of titanium are sphene, biotite, hornblende, and titan augite. Sphene (CaTiSiOs)...large number of igneous and metamorphic rocks. Biotite and hornblende contain relatively small amounts...common igneous rocks of calc-alkalic compositions, biotite has as much as 5.9 percent Ti02, and hornblende...Lyakhovich, 1970). In common metamorphic rocks, biotite contains as much a:;; 5 percent Ti02, and hornblende |  | Brigatti, Maria Franca, Affronte, Marco, Elmi, Chiara, Malferrari, Daniele, Laurora, Angela (2015) Trioctahedral Fe-rich micas: Relationships between magnetic behavior and crystal chemistry. American Mineralogist, 100 (10) 2231-2241 doi:10.2138/am-2015-5145 | Journal (article/letter/editorial) | | materials (Catalli et al. 2011; Hsu et al. 2010). When complex materials, such as minerals, are involved, magnetic...in Guidotti et al. (1988). Samples Tapira and Catalão are from Tapira and Catalão alkaline-carbonatite...the northeast border of the Paraná Basin (Brazil). Sample Tapira is from a Bebedeurite rock mainly composed...polyphasic Eurajoki stock, a rapakivi-granite complex in southwestern Finland. Lithian siderophyllite...study (Xref ) and chemical data (EPMA) Sample Tapira Albano Oquossoc Bryant Pond Catalão Eurajoki Chemical |  | Thompson, R., Smith, P., Gibson, S., Mattey, D., Dickin, A. (2002) Ankerite carbonatite from Swartbooisdrif, Namibia: the first evidence for magmatic ferrocarbonatite. Contributions to Mineralogy and Petrology, 143 (3) 377-396 doi:10.1007/s00410-002-0350-0 | Journal (article/letter/editorial) | | the 1,155-Ma anorthosite-leucotroctolite Kunene complex (Menge 1986; Alberti et al. 1999; Von Seckendorff...Radiometric ages of ca. 1,100 Ma have been obtained from biotite and zircon in Epembe alkaline rocks (quoted by...between carbonatite dykes and the surrounding Kunene-complex anorthosites. The carbonatites form a dense plexus...described sodalite, albite, analcite, cancrinite, biotite and riebeckite from the fenites. Von Seckendorff...(Smithies and Marsh 1998) and Barra do Itapirapuã, Brazil (Andrade et al. 1999). Siderite occurs in the Grønnedal-Iká |  | | Report (issue) | | Wyoming Foreign deposits Algeria Angola Australia Brazil Canada China Colombia Egypt Finland India 1 2...Israel 8 10 2 , Algeria. Angola. Australia, Brazil. Canada. China. Colombia. Egypt Finland India ...DEPOSIT INFORMATION :SIT NAME HARDEE PHOSPHATE COMPLEX F C c tate: Florida nation: usa surface type...REGISTER OF AUSTRALIAN MINING. 1980. D s 438 BRAZIL loc at i^_a wegener a l_deposii_information itataia...itataia deposit name: sequence number: brazil surface operation: latitude: s 04 deg 30 min 00 sec |  | | Journal (article/letter/editorial) | | cation- and anion-deficient varieties to layered complex derivatives (Mitchell, 2002). This classification...to occur in nature. Note that many of the more complex non-stoichiometric or layered derivatives of the...composition is on the phase transition temperatures of complex naturallyoccurring perovskite-group minerals. For...noted that peatite-(Y) and ramikite-(Y), both complex Na-Li ± Zr phosphate carbonate minerals, can be...Tausonite-strontian loparite from the Little Murun complex, Yakutia, Russia. Tausonite occurs in the core |
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