 | Gomes, Celso de Barros, Comin-Chiaramonti, Piero, Azzone, Rogério Guitarrari, Ruberti, Excelso, Rojas, Gaston Eduardo Enrich (2018) Cretaceous carbonatites of the southeastern Brazilian Platform: a review. Brazilian Journal of Geology, 48 (2) 317-345 doi:10.1590/2317-4889201820170123 | Journal (article/letter/editorial) | | Universidade de São Paulo – USP, São Paulo (SP), Brazil. E-mails: cgomes@usp.br, rgazzone@usp.br, exrubert@usp...carbonatite occurrences of different regions of Brazil, Paraguay and Bolivia. Locality Occurrence Petrography...Petrography Mineralogy Age References BRAZIL Ribeira Valley 1 Barra do Itapirapuã Dike, vein, breccia..., Flo, Op (Hm, Il), Ch n.d. 75, 76 15 Araxá (Barreiro) Stock, dike Mg-ca, Ca-ca, Fe-ca Gl, Py,...Toniolo et al. (2013); 76, Monteiro et al. (2016); Araxá: 77, Issa Filho et al. (1984); 78, Traversa et al |  | | Report (issue) | | led by, in decreasing order of reserves, China, Brazil, Australia, and India (Gambogi, 2015). Australia...Western Australia, Australia, and Araxá in the State of Minas Gerais, Brazil). The principal REE minerals...(bastnaesite, parisite, synchysite), hydrated carbonates (ancylite), and phosphates (monazite). Less abundant REE...fluorite, strontianite, barite, and hematite. Ancylite is an indicator of secondary carbonate hydrothermal...20° 10° 0° 10° 20° 30° 40° 50° 60° 80° Araxá Buena Norte mining district Zandkopsdrift Lofdal |  | | Journal (article/letter/editorial) | | minerals include albite and minor epididymite and ancylite-(Ce). Octahedral crystals of “endeiolite” are...Lueshe (Zaire) and bariopyrochlore from Minas Gerais (Brazil), which are excellent examples of secondary...pyrochloregroup minerals from the Lueshe and Araxá (Barreiro) carbonatites by 57Fe Mössbauer spectroscopy |  | Cooper, Alan F., Collins, Alice K., Palin, J. Michael, Spratt, John (2015) Mineralogical evolution and REE mobility during crystallisation of ancylite-bearing ferrocarbonatite, Haast River, New Zealand. Lithos, 216. 324-337 doi:10.1016/j.lithos.2015.01.005 | Journal (article/letter/editorial) | | evolution and REE mobility during crystallisation of ancylite-bearing ferrocarbonatite, Haast River, New Zealand...Keywords: Ferrocarbonatites Hydrothermal alteration Ancylite LREE depletion Lamprophyre-tinguaite association...contain interstitial patches dominated by calcite–ancylite–barite–monazite– thorite–albite–aeschynite–analcime...interaction with hydrothermal fluids. Late stage ancylite-rich segregations have elevated 87Sr/86Sr compositions...Paterson, 1993). This contribution describes an ancylite-bearing carbonatite (OU 81155), and explores the |  | | Journal (issue) | | witness. 2 FINE MINERALS AND GEMSTONES direct from Brazil OCEANSIDE GEM IMPORTS, INC. 426 M arion Street..................5 Brian Lloyd Locality— Minas Gerais, Brazil: A Response..................................... 10 A lv a ro Lucio Calcian Ancylite From Pennsylvania: N e w D a t a .......................very large and colourful am ethyst group from Brazil at $336 ( £ 140). This low price was m ore than...Alvaro Lucio Caiza Postal 1286 Belo Horizonte, Brazil s a mineral collector living in Belo H orizonte |  | | Journal (article/letter/editorial) | | intrusive magma. At Haast River, recently described ancylite-bearing ferrocarbonatites (Cooper et al., 2015)...be calcite produced by exsolution. Patches of ancylite-calcite-barite-analcime-albite-muscovite-thorite-Nb-rutile-...an PT important component of the late-stage ancylite-monazite-barite-calcite-aeschynite segregations...87Sr/86Sr ratios of 0.70365- PT 0.70366 but the ancylite and associated Sr calcite in late stage segregations...Swarm (Barreiro and Cooper, 1987). In contrast to these low isotope ratios, Sr-calcite and ancylite in the |  | Prokopyev, Ilya R., Doroshkevich, Anna G., Sergeev, Sergey A., Ernst, Richard E., Ponomarev, Jean D., Redina, Anna A., Chebotarev, Dmitry A., Nikolenko, Anna M., Dultsev, Vladislav F., Moroz, Tatyana N., Minakov, Alexey V. (2019) Petrography, mineralogy and SIMS U-Pb geochronology of 1.9–1.8 Ga carbonatites and associated alkaline rocks of the Central-Aldan magnesiocarbonatite province (South Yakutia, Russia) Mineralogy and Petrology, 113 (3) 329-352 doi:10.1007/s00710-019-00661-3 | Journal (article/letter/editorial) | | xenotime-(Y), rutile-(Nb), barite-(Sr), anhydrite, ancylite-(Ce) and rare sulphide mineral phases. Alkaline...siderite, carbonates and hydrocarbonates of REE - ancylite-(Ce) (?), haematite and rare sulfides as pyrite...respectively; SrO is below detection limit (Table 3). Ancylite-(Ce) (?) Chlorite, epidote, amphibole, talc, muscovite...magnesiocarbonatites. Anhydrite and carbonates of REE - ancylite-(Ce) (?) occur as single small grains up to 3–5...micrograins of anhydrite and carbonates of REE (ancylite-(Ce)). The second generation of the monazite-(Ce) |  | | Journal (article/letter/editorial) | | Cooper 1971). More recently, U–Pb and Rb–Sr ages (Barreiro & Cooper 1987, Cooper et al. 1987) and K–Ar studies...Institution of Washington, using techniques outlined by Barreiro & Cooper (1987). Mineral Chemistry Representative...strontianite, Sr–Fe-bearing dolomite, ancylite-(Ce) and ancylite-(La), fergusonite-(Ce) and fergusonite(Nd)...in patterns of magnesian carbonatite at Juquia, Brazil (Beccaluva et al. 1992). The low LREE contents...Sr–Nd–Pb isotope ratios have been determined by Barreiro & Cooper (1987). Dykes from the Haast River segment |  | | Journal (article/letter/editorial) | | Subbotin et al., 1999) and Barra do Itapirapuã, Brazil (Andrade et al., 1999). With the exception of Mountain...calcioburbankite and carbocernaite and hydrous carbonate ancylite –(Ce). The phosphate, monazite – (Ce), is a major...assemblage of various rare earth minerals, including ancylite – (Ce), synchysite –(Ce), monazite– (Ce) and other...of secondary minerals have been established (1) ancylite-(Ce) + strontianite + baryte and (2) synchysite-(Ce)...after burbankite/calcioburbankite, followed by ancylite – (Ce) and alstonite, olekminskite, baryte and |  | Smith, M.P., Moore, K., Kavecsánszki, D., Finch, A.A., Kynicky, J., Wall, F. (2016) From mantle to critical zone: A review of large and giant sized deposits of the rare earth elements. Geoscience Frontiers, 7 (3) 315-334 doi:10.1016/j.gsf.2015.12.006 | Journal (article/letter/editorial) | | alteration to produce secondary AC C fluorcarbonates, ancylite-(Ce) and monazite-(Ce). REE mineralisation in...(Moore et al., 2015). ACCEPTED MANUSCRIPT Araxá – Araxá is a carbonatite intrusion-hosted deposit, which...forms part of the Alto Paranaiba Province, Southern Brazil (Traversa et al., 2000). It consists of a 4.5 km...intruding Proterozoic schists and quartzites of the Araxá Group. It has 2.5 km wide, fenite aureole (Traversa...references in Traversa et al., 2000). Pyrochlore from Araxá supplies the bulk of the World’s niobium. There |  | | Journal (article/letter/editorial) | | calcite (15–95 vol.%), subordinate hydroxylapatite, ancylite-(Ce), calcioancylite-(Ce), and minor burbankite...compositions. Crystallization of ancylite-(Ce) and calcio-ancylite-(Ce) is related to low-temperature...of contamination. Keywords: calcite, ancylite-(Ce), calcio-ancylite-(Ce), burbankite, khanneshite, nyerereite...d’hydroxylapatite, d’ancylite-(Ce) et de calcio-ancylite-(Ce), ainsi que des quantités mineures de burbankite...cristallisation de l’ancylite-(Ce) et de la calcio-ancylite-(Ce) est liée aux processus hydrothermaux à faible |  | | Journal (article/letter/editorial) | | County, Montana, where it occurs with aeschynite, ancylite, baryte, sodic amphibole and monazite (Heinrich...intrusion of mantle-derived lamprophyric magmas (Barreiro and Cooper, 1987) is thought to relate to tensional...apatite. Contrib. Mineral. Petrol., 93, 491-503. Barreiro, B.A. and Cooper, A.F. (1987) A Sr, Nd, and Pb...Roy. Soc. New Zealand, 23, 313-36. Cooper, A.F., Barreiro, B.A., Kimbrough, D.L. and Mattinson, J.M. (1987) |  | | Book (edition) | | International Symposium on Carbonatites in Pocos de Caldas, Brazil for which this writer was keynote speaker. The... Pakistan, Quebec, Finland, Guyana, Venezuela, Brazil, Paraguay, Angola and South-West Africa, i.a. Carbonatites...Quebec and Araxa, Brazil) and important sources of P, Ti, Cu and CaCO; (Jacupiranga, Brazil). In addition...Carbonatites of the World United States Canada Brazil Greenland, Europe, and the U.S.S.R. Africa India...Algoma-Sudbury districts of Ontario (Parsons, 1961). For Brazil few detailed reports are available, but summaries | | | Report (issue) | | Paulista phosphate deposit in Pernambuco State, Brazil, in Notholt, A.J.G., Sheldon, R.P., and Davidson...adjacente incluindo depósitos minerais: Brasilia, Brazil, Departamento Nacional da Producao Mineral, p....1989a, The Jacupiranga apatite deposit, Sao Paulo, Brazil, in Notholt, A.J.G., Sheldon, R.P., and Davidson...1989b, The Ipanema phosphate deposit, Sao Paulo, Brazil, in Notholt, A.J.G., Sheldon, R.P., and Davidson...of Catalao I ultramafic alkaline complex, Goias, Brazil, in Notholt, A.J.G., Sheldon, R.P., and Davidson |  | Tay, Stephanie L., Scott, James M., Palmer, Marshall C., Reid, Malcolm R., Stirling, Claudine H. (2021) Occurrence, geochemistry and provenance of REE-bearing minerals in marine placers on the West Coast of the South Island, New Zealand. New Zealand Journal of Geology and Geophysics, 64 (1). 89-106 doi:10.1080/00288306.2020.1736585 | Journal (article/letter/editorial) | | the carbonatites include apatite, aeschynite, ancylite-(Ce), daqingshanite-(Ce), fergusonite, monazite-(Ce)...Society of New Zealand. 19:73–112. Cooper AF, Barreiro BA, Kimbrough DL, Mattinson JM. 1987. Lamprophyre...evolution and REE mobility during crystallisation of ancylite-bearing ferrocarbonatite, Haast River, New Zealand |  | | 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...chlore. Flu orite, vermiculite, synchisite and ancylite have been iden tified. Fig. 25. Main lapis /a211/i |  | | Report (issue) | | rare-earth elements, and antimony in China; niobium in Brazil; and platinum-group elements in South Africa and...chart showing niobium resources and reserves in Brazil, Canada, and the United States...................industrialization in large developing countries, such as Brazil, China, and India. In addition, the development...cobalt (Democratic Republic of the Congo), niobium (Brazil), and platinum (South Africa), are also considered...Zhayrem (Gauert, 2001). 80° Neuquen-Mendoza Araxá Camamu 0° Jameson Land basin Jbel Irhoud 45° |  | | Book | | Ten-fold coordination is known in carbonates like ancylite SrCe(C0 3 ) 2 (OH).H 2 0, burbankite (Na,Ca)a(Sr...1959). Other Carbonates, like synchisite-(Y) or ancylite, can be derived from pre-existing REE minerals;...secondary minerals. Most common arecarbonatessuch as ancylite and bastnaesite (also found as primary minerals)...deposited in the sedimentary basin of Curitiba, Brazil (Cesbron et al. 1979) is still problematical considering...REE patterns of lanthanide-(Nd) frorn Curitiba, Brazil (a) and lanthanide-(Ce) frorn Britannia Mine, UK |  | | Book | | . . . . . . . . . . . . . . . . . . . . . . . Brazil . . . . . . . . . . . . . . . . . . . . . . . ......... . ..... . ........ . ................ . Brazil ...... . .... .... ............... .. ....... ...southern Norway; northern Karelia, U.S.S.R.; Brazil, in Minas Gerais at Brejauba and Engenho Central, in Paraiba...Finland, and Alto do Giz, Rio Grande do Norte, Brazil), on tantalite (Main Tantalite Dike, Strelley,...related type of occurrence is at Barreiro, Araxa, Nlinas Gerais, Brazil, in a calcite vein cutting an alkalic |  | | Journal (article/letter/editorial) | | Li2Al2(Si2O6)2·2(H2O) 10 42 15 Analcime Anatase Ancylite Andalusite Anglesite Anhydrite Anilite Ankerite...gold-bearing quartz veins in the southern Para State, Brazil (Angelica et al., 1997). Chromium muscovite named...conglomerate-hosted U deposits of the Randtype at Jacobina, Brazil (pers. com. P. Laznicka). Chromium-bearing garnet...Canada, Dore Lake, Australia, Campo Formoso, Bahia-Brazil) (Barnes and Francis, 1995; Leinonen, 1998; Kojonen...ultrabasic rocks such as in the Bacuri Complex-Amapa, Brazil (Spier and Filho, 2001). Further sites are found | | | Journal (article/letter/editorial) | | Li2Al2(Si2O6)2·2(H2O) 10 42 15 Analcime Anatase Ancylite Andalusite Anglesite Anhydrite Anilite Ankerite...gold-bearing quartz veins in the southern Para State, Brazil (Angelica et al., 1997). Chromium muscovite named...conglomerate-hosted U deposits of the Randtype at Jacobina, Brazil (pers. com. P. Laznicka). Chromium-bearing garnet...Canada, Dore Lake, Australia, Campo Formoso, Bahia-Brazil) (Barnes and Francis, 1995; Leinonen, 1998; Kojonen...ultrabasic rocks such as in the Bacuri Complex-Amapa, Brazil (Spier and Filho, 2001). Further sites are found |  | | Journal (volume) | | Myanmar Emeralds from the Piteiras mine, Minas Gerais State, Brazil: genetic implications from fluid inclusion...Piteiras mine in Itabira is located in the Minas Gerais State, Brazil and produces gem quality emeralds. Ultramafic...property. “Gem-quality” alexandrite specimens from Brazil, India, Madagascar, Russia, Sri Lanka, and Tanzania...sources. Alexandrite samples from the Hematita mines (Brazil) have typically high Sn (up to 2294 ppm) concentrations...showing LA-ICP-MS data [ppm] for alexandrites from Brazil (BZ), Madagascar (MAD), Russia, Sri Lanka, and |  | | Report (issue) | | Liberia, Sierra Leone, South-West Africa, Tanzania, Brazil, Guyana, India, Indonesia, and Venezuela. Diamond... Mining Engineering, 1971, Alcoa jungle lab in Brazil for aluminum exploration: Mining Eng., v. 23, no...deposits. Arsenical gold deposits __ United States, Brazil, Canada, Republic of South Africa, Australia, U...the Nova Lima and Rio Acima quadrangles, Minas Gerais, Brazil: U.S. Geol. Survey Prof· Paper 341-A, 67...been imported, three-fourths of it coming from Brazil, the Republic of South Africa, India, Argentina |  | Kogel, Jessica Elzea, Trivedi, Nikhil C., Barker, James M., Krukowski, Stanley T. - Eds. (2006) Industrial Minerals and Rocks (7th ed.) Society for Mining, Metallurgy, and Exploration, Inc., Littleton, CO. | Book (edition) | | concentrat ed in southern Africa, the Siberian Platform, Brazil, and Western Australia. Ages range from Precambrian...associated with pegmatites in locations such as Brazil, the former U.S.S.R., and western Canada, pro duction...Venezuela, Guyana, Surinam, Guiana, and parts of Brazil and Colombia) • Northern Brazilian Shield Province...coming from Australia, Guinea, Jamaica, China, and Brazil. Nonmetallurgical grades used for refractories...specific deposits in China, Australia, Guinea, Brazil, Guyana, and Suriname. Fluorspar Manganese Lithium |  | | Report (issue) | | R., Fitton, J.G., George, R., Smith, R., and Barreiro, B., 2000, Two mantle plumes beneath the East... R., Fitton, J.G., George, R., Smith, M., and Barreiro, B., 2000, Two mantle plumes beneath East African... R., Fitton, J.G., George, R., Smith, M., and Barreiro, B., 2000, Two mantle plumes beneath the East... R., Fitton, J.G., George, R., Smith, M., and Barreiro, B., 2000, Two mantle plume beneath East African...São Paulo, Rua do Lago 562, 05508-080 São Paulo, Brazil ABSTRACT Post-Paleozoic magmatism in Angola and |
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