 | de Lira Santos, Lauro Cézar M., Lages, Geysson A., Caxito, Fabrício A., Dantas, Elton L., Cawood, Peter A., Lima, Haroldo M., da Cruz Lima, Felipe J. (2022) Isotopic and geochemical constraints for a Paleoproterozoic accretionary orogen in the Borborema Province, NE Brazil: Implications for reconstructing Nuna/Columbia. Geoscience Frontiers, 13 (5) 101167 doi:10.1016/j.gsf.2021.101167 | Journal (article/letter/editorial) | | accretionary orogen in the Borborema Province, NE Brazil: Implications for reconstructing Nuna/Columbia...Nuna/Columbia Lauro Cézar M. de Lira Santos a,⁎, Geysson A. Lages b, Fabrício A. Caxito c, Elton L. Dantas d, Peter...Recife, PE, Brazil Serviço Geológico do Brasil - CPRM, Av. Sul, Afogados, Recife, PE, Brazil c CPMTC, Instituto... Antônio Carlos, Pampulha, Belo Horizonte, MG, Brazil d Instituto de Geociências, Universidade de Brasília...Universitário Darcy Ribeiro, Asa Norte, Brasília, DF, Brazil e School of Earth, Atmosphere and Environment, |  | Guarino, Vincenza, Gennaro, Roberto de', Melluso, Leone, Ruberti, Excelso, Azzone, Rogério G. (2019) The Transition from Miaskitic to Agpaitic Rocks, as Highlighted by the Accessory Phase Assemblages in the Passa Quatro Alkaline Complex (SouthEastern Brazil) The Canadian Mineralogist, 57 (3) 339-361 doi:10.3749/canmin.1800073 | Journal (article/letter/editorial) | | THE PASSA QUATRO ALKALINE COMPLEX (SOUTHEASTERN BRAZIL) VINCENZA GUARINO§, ROBERTO DE’ GENNARO, AND...São Paulo, Rua do Lago 562, 05508-080 São Paulo, Brazil ABSTRACT The Passa Quatro alkaline complex is...Cretaceous to Paleogene Igneous Province of southeastern Brazil. It is composed mainly of nepheline syenites and...Quatro, Brazil. INTRODUCTION The Mesozoic to Cenozoic alkaline magmatism of southern Brazil crops out...complexes. Two important magmatic provinces in southern Brazil are the Alto Paranaı́ba and Serra do Mar. The rocks |  | | Book | | until he managed to reach the land of his dreams, Brazil. A specialist in the field of geology and mineralogy...crystals and the remarkable mineral treasures of Brazil, as well as the incredible adventures and difficulties...UNIQUE MINERALS IN WORLD MUSEUMS GEM TREASURES OF BRAZIL Cyan Magenta Yellow Black 1 Delev Ilia Deleff...UNIQUE MINERALS IN WORLD MUSEUMS GEM TREASURES OF BRAZIL SOFIA–MOSCOW 2004 3 Cyan Magenta Yellow Black...MINERAL TREASURES OF BRAZIL 76 85 AN OUTLINE OF THE MINERAL RESOURCES OF BRAZIL ORIGIN OF GIANT CRYSTALS |  | | Book | | BARTORELLI ::• . . .. MINERALS & PRECIOUS STONES OF BRAZIL Sponsored by: VALE MINISTER.IO DA CULTURA ©...Brasileira do Livro, SP, Brazil) Cornejo, Carlos .Minerals & precious stones of Brazil. Carlos Cornejo, Andrea...3. Minerals - Brazil 4. Minerals- Classification 5. Mineralogy 6. Mineralogy - Brazil - History 7. Precious...Precious stones - Brazil I. Bartorelli, Andrea. II. Title. 09-10025 Cover photograph: Crystal of brazilianite...Landmann. CDD-549 Indexes for systematic catalog: 1. Brazil: Minerals and precious stones: Mineralogy and gemology |  | | Book | | .......................................... 167 Brazil..................................................particular of Africa, the U.S.S.R., Canada and Brazil, much of it inspired by the search for exploitable...Montreal area of Canada and for central Coais, Brazil. N11111ber and na111e Each occurrence has been...a n;:itional number, for example Jacupiranga is Brazil 88. This is followed by the preferred name of the...pseudoleucites (30%) up to 4 cm in diameter and orthoclase phen ocrysts ( 1 0 %) up to 1 cm, in a groundmass |  | | Journal (article/letter/editorial) | | 10-14 FEBRUARY 4, 1896 DECOMPOSITION OF ROCKS IN BRAZIL BY JOHN C. BRANNER (R ead before the Society August... 256 J. C. BRANNER— DECOMPOSITION OF ROCKS IN BRAZIL. Page Rainfall........................................ 313 I n tro du ction . i In writing of Brazil, Louis Agassiz* says that— “ The decomposition...the decomposition .—Disintegration of rocks in Brazil is both profound and widespread. The working out...feature of the geology from the equator * Journal in Brazil, 89.- Am. Jour. Sci., 2d ser., vol. xlt 1865, p |  | Souza Neto, João Adauto, Legrand, Jean Michel, Volfinger, Marcel, Pascal, Marie-Lola, Sonnet, Philippe (2008) W–Au skarns in the Neo-Proterozoic Seridó Mobile Belt, Borborema Province in northeastern Brazil: an overview with emphasis on the Bonfim deposit. Mineralium Deposita, 43 (2) 185-205 doi:10.1007/s00126-007-0155-1 | Journal (article/letter/editorial) | | Mobile Belt, Borborema Province in northeastern Brazil: an overview with emphasis on the Bonfim deposit...located in the Borborema Province in northeastern Brazil and consists of a gneiss basement (Archean to Paleo-Proterozoic)...s/n, Cidade Universitária, CEP 50.740-530 Recife, Brazil e-mail: adauto@ufpe.br J. M. Legrand Departamento...Universitário, Lagoa Nova, CEP 59.072-970 Natal, Brazil M. Volfinger : M.-L. Pascal Centre de Recherches...Bonfim . Borborema Province . Seridó Mobile Belt . Brazil Introduction Skarn deposits host a large variety |  | Giovannini, Arthur L., Mitchell, Roger H., Bastos Neto, Artur C., Moura, Candido A.V., Pereira, Vitor P., Porto, Claudio G. (2020) Mineralogy and geochemistry of the Morro dos Seis Lagos siderite carbonatite, Amazonas, Brazil. Lithos, 360. 105433 doi:10.1016/j.lithos.2020.105433 | Journal (article/letter/editorial) | | dos Seis Lagos siderite carbonatite, Amazonas, Brazil Arthur L. Giovannini a,⁎, Roger H. Mitchell b,...Bento Gonçalves 9500, Porto Alegre 91501-970, RS, Brazil Department of Geology, Lakehead University, 955...Avenida Victor Barreto 2288, Canoas 92010-000, RS, Brazil d Instituto de Geociências, Universidade Federal...Federal do Pará, Rua Augusto Corrêa 1, Belém, PA, Brazil e Instituto de Geociências, Universidade Federal...Bento Gonçalves 9500, Porto Alegre 91501-970, RS, Brazil f Companhia de Pesquisa de Recursos Minerais CPRM |  | Lustrino, Michele, Melluso, Leone, Brotzu, Pietro, Gomes, Celso B., Morbidelli, Lucio, Muzio, Rossana, Ruberti, Excelso, Tassinari, Colombo C.G. (2005) Petrogenesis of the early Cretaceous Valle Chico igneous complex (SE Uruguay): Relationships with Paraná–Etendeka magmatism. Lithos, 82 (3) 407-434 doi:10.1016/j.lithos.2004.07.004 | Journal (article/letter/editorial) | | Cidade Universitária, CEP 05508-900, São Paulo, Brazil e Departamento de Geologia, Instituto de Geologia...the south American plate, mostly concentrated in Brazil (Serra Geral Formation; Piccirillo and Melfi, 1988;...products mostly occur in the Paraná basin (N95% in Brazil; b5% in Uruguay), whereas the felsic volcanic rocks...around the Paraná–Etendeka igneous province in Brazil, Bolivia, Paraguay, Uruguay, Angola and Namibia...and Punta del Este and rift-type basins (e.g., Santa Lucia basin)) is the first evidence of such a reactivation |  | Lanier, G., John, E. C., Swensen, A. J., Reid, J., Bard, C. E., Caddey, S. W., Wilson, J. C. (1978) General geology of the Bingham Mine, Bingham Canyon, Utah. Economic Geology, 73 (7) 1228-1241 doi:10.2113/gsecongeo.73.7.1228 | Journal (article/letter/editorial) | | appearance and parallel alignment. Groundmass orthoclase and plagioclasehave a tendencvto separateinto...mm 1)lagioclase grains with nilnor orthoclase, Phlogopite, orthoclase,quartz, some apatite. and l•i{,tite...sageneticrutile makes up a small 0.02 to 0.08 mm quartzand orthoclase grainswhich percentageof the rock. The mode of...biotite b/o<•preexlshng mafic * (1i) quartz-orthoclase-phlagopitezone sui...'•:•'::•:' sericite zone Porphyries I quartz-orthoclase-bioti zone actinolite-chlor zone calcite-ch zone |  | | Journal (issue) | | of granite-pegmatites and formed in them large orthoclase blocks with the nests of gemmy moonstone. Gemstones...Manganotantalite Marialite Microcline Muscovite Orthoclase Phenakite Pollucite Pyrochlore Quartz Scheelite...Crystal 25x 17x 17mm. J& 60/13411. Agate (onyx) ?Brazil]. 6x 5 CM.N2 636/3292. Hofmann collection. All...Hungary, the Harz, Italy, Tirol, Saxony, Switzerland, Brazil, North America, Sitka Island, and Manila (Philippines)...80- L a Paz 81- Moctezuma 82- L o s Lamentos 83- Santa Eulalia; Naica 84- Ojuela mine, Mapimi 85- Cosala |  | | Book | | gysinite-(Nd) and other rare minerals from [the Santa Lucia and Sa Duchessa mines,] Sardinia [Italy] (by...crandallite from the Alto Benedeto pegmatite, Parai'ba, Brazil (by J.P. Cassedanne & L. Barreto) 22: 183-185 ALTO...Burian goyazite from [Alto Bernardino, Paraiba,] Brazil (by J. S. White, Jr.) 12:379 ALUMOHYDROCALCITE...muscovite from the Ze Pinto prospect, Minas Gerais, Brazil 21:405-408 --with J.P. Cassedanne: Crystallized...Gerais, Brazil 21:409-412 --with J. P. Cassedanne: The Jaguara~u pegmatite, Minas Gerais, Brazil 25:165-170 |  | | Journal (article/letter/editorial) | | merenskyite (Cabri, 1976) and may contain Pt and orthoclase in the NaA1SiaOa-KA1SiaO8 system(CarNi substituting...of the last decimalplace. the StillwaterassemJ)lages wereformedat a higher Conclusions temperaturethan |  | Domènech, Cristina, Villanova-de-Benavent, Cristina, Proenza, Joaquín A., Tauler, Esperança, Lara, Laura, Galí, Salvador, Soler, Josep M., Campeny, Marc, Ibañez-Insa, Jordi (2022) Co–Mn Mineralisations in the Ni Laterite Deposits of Loma Caribe (Dominican Republic) and Loma de Hierro (Venezuela) Minerals, 12 (8) 927 doi:10.3390/min12080927 | Journal (article/letter/editorial) | | Australia, New Caledonia, Indonesia, the Philippines, Brazil, Cameroon, Greece and the Caribbean region ([2...used were: wollastonite (Si, Ca), corundum (Al), orthoclase (K), hematite (Fe), periclase (Mg), rhodonite...Characterization of a Bauxite Ore from Lages, Santa Catarina, Brazil, for Refractory Production. Miner. Process |  | Thompson, R. N., Gibson, S. A., Mitchell, J. G., Dickin, A. P., Leonardos, O. H., Brod, J. A., Greenwood, J. C. (1998) Migrating Cretaceous-Eocene Magmatismin the Serra do Mar Alkaline Province,SE Brazil: Melts from the Deflected Trindade Mantle Plume?. Journal of Petrology, 39 (8) 1493-1526 doi:10.1093/petroj/39.8.1493 | Journal (article/letter/editorial) | | Magmatism in the Serra do Mar Alkaline Province, SE Brazil: Melts from the Deflected Trindade Mantle Plume...UNIVERSIDADE DE BRASÍLIA, 70910 BRASÍLIA DF, BRAZIL RECEIVED JULY 30, 1997; REVISED TYPESCRIPT ACCEPTED...volcanic remnants, and dyke swarms along coastal SE Brazil. The igneous rocks are emplaced into metamorphics...mantle plume impacted at ~85 Ma beneath interior SE Brazil where the lithosphere was too thick (>150 km),...together with strongly alkaline magmatism at Lages, southern Brazil, a site of localized rifting. After ~80 |  | Kanouo, Nguo Sylvestre, Lentz, David Richard, Zaw, Khin, Makoundi, Charles, Basua, Emmanuel Afanga Archelaus, Yongué, Rose Fouateu, Njonfang, Emmanuel (2021) New Insights into Pre-to-Post Ediacaran Zircon Fingerprinting of the Mamfe PanAfrican Basement, SW Cameroon: A Possible Link with Rocks in SE Nigeria and the Borborema Province of NE Brazil. Minerals, 11 (9) 943 doi:10.3390/min11090943 | Journal (article/letter/editorial) | | in SE Nigeria and the Borborema Province of NE Brazil Nguo Sylvestre Kanouo 1, *, David Richard Lentz...in SE Nigeria and the Borborema Province of NE Brazil. Minerals 2021, 11, 943. https://doi.org/10.3390/min11090943...Belt, SE Nigeria, and the Borborema Province of NE Brazil. Separated zircons from Araru black to whitish...magmatism in the Borborema Province in the NE of Brazil. These ages date collisional phases between the...Velhos orogeny in the Borborema Province in NE Brazil, with Early Tonian crustal rifting, magmatism, |  | | Journal (article/letter/editorial) | | Preto, Dept. de Geologia, 35400-000, Ouro Preto-MG, Brazil. 1339 1340 R. V. Santos and R. N. Clayton 55°...Rocks. FIG. 1. Location of alkaline complexes in Brazil. M O R B ) . In o r d e r to a d d r e s s s o...o n s o f five c a r b o n a t i t e s f r o m Brazil ( J a c u p i r a n g a , Araxfi, Tapira, Catal~o...phonolite (Santos, 1988; Santos and Dardenne, 1988). Orthoclase-bearing fenites in Mato Preto resemble similar...Potassium-argon age studies of alkaline rocks from southern Brazil. Geochim. Cosmochim. Acta 31, 117-142. Baeker M |  | | Book | | each of which contains quartz, plagioclase, and orthoclase, are andalusitecordierite-biotite and cordierite-hypersthene-...associations sil1imanite-n1uscovite and sillimanite-orthoclase, the latter representing the peak of metamorphism...Labradorite-hornblende-diopside. 4. Pelitic: Quartz-andesine-orthoclase-biotite-sillimanite (-almandine or cordierite)...sillimanite, and of almandine. But the assen1blage orthoclase-sillimanite-ahnadine is found only in the highest...Typically the variance is 2; but there are so1ne assemb lages which represent univariant equilibrium. 2. T he |  | | Journal (article/letter/editorial) | | villages lie to the west, and Esenkoy and Kavsut vil lages are located on the north of the town. In the 1 The...it predominantly contains quartz, oligoclase, orthoclase, micas, and lesser epidote and zircon [16]. The |  | | Journal (article/letter/editorial) | | rocks is generally microcline and uncommonly orthoclase; p erthitic in ter growths are rare. Oligodase...exposed near the main highway, between the vil lages of Jefferson Highland and Jefferson. All gradations...the porphyritic variety p otash feldspar (both orthoclase and microcline) is present in about the same...phenocrysts, is generally microcline and uncommonly orthoclase. Perthitic intergrowths with plagioclase are...terized by heterogeneity. The restriction of the orthoclase “phenocrysts” to definite bands in some localities |  | | Book | | glass. Number 1 Mineral Ta lc Number 6 Mineral Orthoclase 2 Gypsum 7 Quartz 3 Calcite 8 Topaz ...Africa), Golconda (India), Oiamontlna (Minas Gerais, Brazil) and Yakutia (Russia). C Colour: colourless,...Oklahoma and Kansas (USA), Broken Hill (Australia) and Santa Eulalia (Mexico); crystals are found at Pribram...chalcotrlcite; ruby copper is a gem-quality crystal found at Santa Rita (New Mexico, USA) and Onganyo (Namibia). It...include Val Malenco and Vesuvius (Italy), Bagagem (Brazil), Kaiserstuhl (Ge.rmany) and Quebec (Canada). | | | Book | | Number Mineral Ta lc Number 1 6 Mineral Orthoclase 2 Gypsum 7 Quartz 3 Calcite 8 Topaz ...Africa), Golconda (India), Oiamontlna (Minas Gerais, Brazil) and Yakutia (Russia). C Colour: colourless,...Oklahoma and Kansas (USA), Broken Hill (Australia) and Santa Eulalia (Mexico); crystals are found at Pribram...chalcotrlcite; ruby copper is a gem-quality crystal found at Santa Rita (New Mexico, USA) and Onganyo (Namibia). It...include Val Malenco and Vesuvius (Italy), Bagagem (Brazil), Kaiserstuhl (Ge.r many) and Quebec (Canada). |  | | Thesis/Dissertation | | and perthitic intergrowths mar¬ ginal to the orthoclase crystals are very pronounced* The content of...portion of the core consists almost entirely of orthoclase and quartz* The feldspar crystals are fractured...extensively kaolinizea. The fragmental rock consists of orthoclase and quartz, with a considerable amount of hematite...appearance. give epidote, P.P., visible in the orthoclase, to¬ the rock a red, white A small amount...and, cal cite fill a narrow fracture. Quartz, orthoclase and biotata are the other minerals visible^in |  | | Journal (article/letter/editorial) | | rocks. The thermal water becomes a mildly acid lages enveloping these hydraulic conduits. The alterfluid...persists to about 250 ft) illite, residual quartz, orthoclase and plagioc1ase as well as sporadic biotite....by the presence in the sample of all original orthoclase, some plagioclase, and sometimes even biotite)...alunite, residual quartz and a trace of residual orthoclase. No montmorillonite is present. Apparently, the...from the granodiorite prior to destruction of orthoclase. Additional possible explanations for these large |  | Drugova, G. M., Levchenkov, O. A., Morozova, I. M., Bogomolov, Ye. S., Verkhalo-Uzkiy, V. N., Yakovleva, S. Z., Berezhnaya, N. G. (1986) ROCK COMPOSITIONS AND AGES IN THE ANCIENT BASEMENT OF THE ALDAN SHIELD. International Geology Review, 28 (9) 1001-1020 doi:10.1080/00206818609466344 | Journal (article/letter/editorial) | | they have become enriched in potash feldspar (orthoclase-perthite) and have become of coarser grain size...serykh gneysov arkheya (Archean Grey-Gneiss Assemb lages) (pp.84-94): Nauka Press, Leningrad. 12. Lambert |
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