 | | Report (issue) | | the Departmento National da Produ^ao Mineral of Brazil under the auspices of the Agency for International...Ferrifero, Minas Gerais, Brazil By NORMAN HERZ REGIONAL GEOLOGY OF THE QUADRILATERO FERRIFERO, MINAS GERAIS...GERAIS, BRAZIL GEOLOGICAL SURVEY PROFESSIONAL Prepared in cooperation with the Departmento Nacional da Produqao...Produqao Mineral of Brazil under the auspices of the Agency for International Development of the United...Ferrifero, Minas Gerais, Brazil. (Regional geology of the Quadrilatero Ferrifero, Minas Gerais, Brazil) (Geological |  | | Report (issue) | | and Ore Deposits of the Alegria District, Minas Gerais, Brazil GEOLOGICAL SURVEY PROFESSIONAL PAPER 341-J...the Departamento National da Producao Mineral of Brazil under the auspices of the Agency for International...District, Minas Gerais, Brazil By CHARLES H. MAXWELL GEOLOGY AND MINERAL RESOURCES OF PARTS OF MINAS GERAIS...GERAIS, BRAZIL GEOLOGICAL SURVEY PROFESSIONAL PAPER 341-J Prepared in cooperation with the Departamento...Departamento National da Producao Mineral of Brazil under the auspices of the Agency for International Development |  | | Journal (issue) | | iridescence observed in “rainbow” hematite from Minas Gerais, Brazil. 40 DNA Techniques Applied to the Identification...as untreated • Cat’s-eye demantoid and brown andradite with horsetail inclusions • Unusual orange py...iridescence in metamorphic “rainbow” hematite from Brazil. The authors use electron microscopy, atomic force...colored by GR1 defects have been alluvial deposits in Brazil, Guyana, Venezuela, Zimbabwe, the Central African...never graded by GIA), and the 5.03 ct Aurora Green (Brazil), which sold at auction in 2016 for more than US |  | | Journal (issue) | | mining-themed park was approved in 2000, and the Minas de Almadén y Arrayanes The Mineralogical Record...of the mines has been the responsibility of the Minas de Almadén y Arrayanes (MAYASA), a State-owned company...was at that time Governor of the Almadén mines (Barreiro, 1992). From 1776 to 1784, King Carlos III commissioned...others, several specimens of cinnabar from Almadén (Barreiro, 1992). In 1791, the Assistant Director of the...de otros. En Madrid. En la Imprenta del Reyno. BARREIRO, A. J. (1992) El Museo Nacional de Ciencias Naturales |  | | Book | | BARTORELLI ::• . . .. MINERALS & PRECIOUS STONES OF BRAZIL Sponsored by: VALE MINISTER.IO DA CULTURA ©...Lavra do Sapo, Ferruginha, Conselheiro Pena, Minas Gerais. Collection of Alvaro Lucio. Photograph taken...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 |  | Pons, J. M., Franchini, M., Meinert, L., Recio, C., Etcheverry, R. (2009) Iron Skarns of the Vegas Peladas District, Mendoza, Argentina. Economic Geology, 104 (2) 157-184 doi:10.2113/gsecongeo.104.2.157 | Journal (article/letter/editorial) | | Peladas glacial valley on the northeast slope of Las Minas Hill at an 70º 60º MENDOZA 34º Atuel Basin...formations. These units crop out to the northeast of Las Minas Hill on both sides of the Vegas Peladas Creek (Fig...Tordillo Formation Analyzed samples Cerro de las Minas (3806m) Vp10 Mapped contact Auquilco Formation...granodiorite plutons that form the Cerro de las Minas Hill, a granite pluton emplaced in the periphery...Tecnologia Nuclear (CDTN, CNEN, Belo Horizonte, Brazil, using a Jeol-JXA- 8900 RL WD/ED microprobe), at |  | Čopjaková, R., Škoda, R., Vašinová Galiová, M., Novák, M. (2013) Distributions of Y + REE and Sc in tourmaline and their implications for the melt evolution; examples from NYF pegmatites of the Třebíč Pluton, Moldanubian Zone, Czech Republic. Journal of GEOsciences, 58 (2) 113-131 | Journal (article/letter/editorial) | | sanidine (Si, Al, K), albite (Na), olivine (Mg), andradite (Ca, Fe), Mn2SiO4 (Mn), anatase (Ti), topaz (F)...zoned fibrous tourmaline, Cruzeiro Mine, Minas Gerais, Brazil: a record of evolving magmatic and hydrothermal...granitic pegmatite dykes of the Cruzeiro Mine, Minas Gerais, Brazil. Canad Mineral 36: 415–431 Förster H-J (2006)...layers in the São José do Barreiro Area, NE Ribeira Belt, southern Brazil. Geol USP Sér cient São Paulo |  | | Journal (article/letter/editorial) | | Madeira Sn-Nb-Ta world-class deposit (Pitinga, Brazil) Ingrid.W. Hadlich, Artur C. Bastos Neto, Nilson...Madeira Sn-Nb-Ta world-class deposit (Pitinga, Brazil), Ore Geology Reviews (2019), doi: https://doi...Madeira Sn-Nb-Ta world-class deposit (Pitinga, Brazil). Ingrid. W. HADLICH1, Artur C. BASTOS NETO2, Nilson...Bento Gonçalves 9500, Porto Alegre, 91501-970, RS, Brazil. ingrid.hadlich@ufrgs.br. 2 Instituto de Geociências...Bento Gonçalves 9500, 91501-970, Porto Alegre, RS, Brazil. artur.bastos@ufrgs.br, vitor.pereira@ufrgs.br |  | | Journal (article/letter/editorial) | | peninisula, Russia (Borodin and Pavlenko 1974). In Brazil, Filho et al. (1984) describe glimmerites containing...rather trivial; an exception is formation of Ti-andradite, in fenites at the Rainy Creek complex, Montana...of the Barreiro carbonatitic complex, Araxa MG, Brazil. In: Carbonatitic complexes of Brazil: geology...Brasileira de Metalurgia e Mineracao, Sao PauIo, Brazil, p 44 Gittins J, Allen CR, Cooper AF (1965) Phlogopitization...geochemical studies of alkaline rocks from continental Brazil. 3. Fenitization ofjacupirangite by carbonatite |  | Dewolf, C.P., Zeissler, C.J., Halliday, A.N., Mezger, K., Essene, E.J. (1996) The role of inclusions in U-Pb and Sm-Nd garnet geochronology: Stepwise dissolution experiments and trace uranium mapping by fission track analysis. Geochimica et Cosmochimica Acta, 60 (1) 121-134 doi:10.1016/0016-7037(95)00367-3 | Journal (article/letter/editorial) | | premetamorphic lead signature (Parrish, 1990; Smith and Barreiro, 1990). Schematic fields for monazite, zircon...the octahedral site (Novak and Gibbs, 1971). In andradite rich garnets, the substitution of Fe+’ for Al...demonstrates that in some garnets (e.g., the grossular-andradite sample CS ) , uranium is hosted within the garnet...the grossular-andradite garnets from Cascade Slide is most likely related to andradite solid solution...Wyoming. J. Petrol. 32, 241-273. Smith H. A. and Barreiro B. (1990) Monazite U-Pb dating of staurolite grade |  | | Journal (article/letter/editorial) | | domain, see, e.g., Gómez ACCEPTED MANUSCRIPT Barreiro et al., 2007). The main target of our work was...Marcos, 2001; Piçarra et al., 2006; Gómez AC CE P Barreiro et al., 2007). The parautochthon represents an...al., 1996; Llana-Fúnez and Marcos, 2002; Gómez Barreiro et al., 2007). Similar to the MTU, the parautochthon...abandoned the northern margin of Gondwana (Gómez Barreiro et al., 2007) and is exposed in a few places at...orogeny caused metamorphism (385–280 Ma) (Gómez Barreiro et al., 2007). SC in northwestern Spain, however |  | | Journal (article/letter/editorial) | | spessartine (XMn) versus that of grossular (+ andradite) as XCa. The solid lines show the chemical trends...Alm54Prp20Grs25Sps1 (Gt4). There is almost no andradite component in garnet (Table 1) according to the...EMP in terms of molar fractions of grossular (+ andradite) as XCa and spessartine (XMn) versus that of pyrope...isopleths of the garnet components grossular (+andradite), pyrope, and spessartine for a composition of...531–543. Díez Fernández, R., Castiñeiras, P., & Barreiro, J.G. (2012b): Age constraints on Lower Paleozoic |  | | Book | | 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...and muscovite from the Ze Pinto prospect, Minas Gerais, Brazil 21:405-408 --with J.P. Cassedanne: Crystallized...Pitora, Minas Gerais, Brazil 21:409-412 --with J. P. Cassedanne: The Jaguara~u pegmatite, Minas Gerais, Brazil...and platinum from C6rrego Born Sucesso, Minas Gerais, Brazil 23:471-474 AMARGOSA DESERT Hydroboracite |  | | 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 |  | | Journal (article/letter/editorial) | | 5O% Jo Di Hd 5O% FIG.5. Top:Grossular (Gr)-andradite (Ad)-spessartine-almandine (Sps-Alm) diagramfor..."enriched" upper mantlein the senseof Tilton and Barreiro(1980). Thisuppermantlematerialisin itself probablythe...thesis, Univ. Liverpool, 239 p. Tilton, G. R., and Barreiro,B. A., 1980, Origin of lead in Andean -1987, Kuroko-type |  | 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 |  | | Journal (article/letter/editorial) | | 2008; Lanzirotti and Hanson, 1996; Smith and Barreiro, 1990; Spear and Pyle, 2002), however, studies...sanidine, Si — sanidine, Ca — CaTh(PO4)2, Fe — andradite, S — BaSO4, Sr — SrSO4, F — topaz) were used as...Parrish, 2003; Kingsbury et al., 1993; Smith and Barreiro, 1990). LowT monazite usually disappears during...Mineralogia Polonica 28, 208–210. Smith, H.A., Barreiro, B., 1990. Monazite U–Pb dating of staurolite |  | Lu, Wan-Jian, Zhang, Li, Chen, Hua-Yong, Han, Jin-Sheng, Jiang, Hong-Jun, Li, Deng-Feng, Fang, Jing, Wang, Cheng-Ming, Zheng, Yi, Tan, Zhi-Xiong (2018) Geology, fluid inclusion and isotope geochemistry of the Hongyuan reworked sediment-hosted Zn–Pb deposit: Metallogenic implications for Zn–Pb deposits in the Eastern Tianshan, NW China. Ore Geology Reviews, 100. 504-533 doi:10.1016/j.oregeorev.2017.01.004 | Journal (article/letter/editorial) | | low Mn, as evidenced by the high proportion of andradite (47.11 – 95.42 mole %) and grossularite (2.89...(Fe3+), which formed andradite-rich garnet. Zinc skarn contains usually andradite garnet, and the Hongyuan...mineral system (Meinert et al., 2005). The low-Mn andradite-rich garnets at Hongyuan are common in zinc skarn...e isomorphous series, commonly coexists with andradite in Ca-rich skarn deposits. The Hongyuan diopside...homogenized mantle- and upper crust reservoir (Barreiro and Clark 1984; Chiaradia and Fontboté 2003; Fang |  | Voudouris, Panagiotis, Mavrogonatos, Constantinos, Rieck, Branko, Kolitsch, Uwe, Spry, Paul, Scheffer, Christophe, Tarantola, Alexandre, Vanderhaeghe, Olivier, Galanos, Emmanouil, Melfos, Vasilios, Zaimis, Stefanos, Soukis, Konstantinos, Photiades, Adonis (2018) The Gersdorffite-Bismuthinite-Native Gold Association and the Skarn-Porphyry Mineralization in the Kamariza Mining District, Lavrion, Greece. Minerals, 8 (11) 531 doi:10.3390/min8110531 | Journal (article/letter/editorial) | | porphyry); (e) andradite (Adr), wollastonite (Wo), and apatite (Ap) as part of the in (e) andradite (Adr), wollastonite...garnetitic skarn, with Al2 O3 14.87 14.62 15.01 andradite, wollastonite, apatite, and magnetite being part...Kamariza (Figure 2c). It is a garnetitic skarn, with andradite, wollastonite, apatite, and magnetite being part...16 Stouraiti, C.; Mitropoulos, P.; Tarney, J.; Barreiro, B.; McGrath, A.M.; Baltatzis, E. Geochemistry |  | | Journal (article/letter/editorial) | | following multiple metamorphic reactions (Smith and Barreiro 1990; Kingsbury et al. 1993, Bingen et al. 1996;...of metamorphic monazite in pelites (Smith and Barreiro 1990). The regional metamorphic assemblage co...ratios. DeWolf et al. (1996) have shown that andradite-rich garnets may have higher concentrations of...Geochim Cosmochim Acta 57:4095–4102 Smith HA, Barreiro BA (1990) Monazite U-Pb dating of staurolite grade |  | | Journal (article/letter/editorial) | | rim with the spessartine (Sps) and grossular (+ andradite: ED Gro+Andr) components decreasing from 1 to...Alm89 Pyp5.5 Sps0.5 (stage II). The calculated andradite content is between 1.0-1.7 mol% (Table 2). Potassic...isopleths for the molar fractions of grossular (+ andradite) and pyrope of the inner (Sps0.6 Pyp4 Gros8.4... Castineiras, P., Fernandez-Suarez, J., Gomez Barreiro, J., Paquette, J.L., Peucat, J.J., Poujol, M....domains in the Nazaré Paulista migmatite, SE EP T Brazil. Chemical Geology 261, 271–285. Massonne, H.-J |  | | Book (volume) | | Universidad de Oviedo, Oviedo, Spain J. Gómez Barreiro Departamento de Geología, Universidad de Salamanca... Dias da Silva, E. González-Clavijo, J. Gómez Barreiro, and A. López-Carmona 2.1 Introduction . . . ...González-Clavijo, A. Díez-Montes, and J. Gómez-Barreiro 3.1 Introduction . . . . . . . . . . . . . . ... . . . . . . J. R. Martínez Catalán, J. Gómez Barreiro, Í. Dias da Silva, M. Chichorro, A. López-Carmona.... . . . . A. Azor, Í. Dias da Silva, J. Gómez Barreiro, E. González-Clavijo, J. R. Martínez Catalán, |  | Čopjaková, Renata, Škoda, Radek, Galiová, Michaela Vašinová, Novák, Milan, Cempírek, Jan (2015) Sc- and REE-rich tourmaline replaced by Sc-rich REE-bearing epidote-group mineral from the mixed (NYF+LCT) Kracovice pegmatite (Moldanubian Zone, Czech Republic) American Mineralogist, 100 (7) 1434-1451 doi:10.2138/am-2015-4863 | Journal (article/letter/editorial) | | sanidine (Si, Al, K), albite (Na), olivine (Mg), andradite (Ca, Fe), Mn2SiO4 (Mn), anatase (Ti), topaz (F)...Si Ka (sanidine), CaKa (wollastonite), FeKa (andradite), ScKa (ScVO4), SnLa (Sn), LaLa (LaPO4), CeLa...tourmaline” in granitic pegmatites from Northeastern Brazil. American Mineralogist, 49, 277–300. Bonazzi, P...layers in the São José do Barreiro Area, NE Ribeira Belt, Southern Brazil. Geologia USP Série Cietífica...Quintos pegmatite, Borborema pegmatite province, Brazil; redistribution of Cu, Mn, Fe and Zn in secondary |  | | Journal (article/letter/editorial) | | 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...member of the ugrandite s.s.s. (grossularite and andradite garnets) develops in a metamorphic environment | | | Journal (article/letter/editorial) | | 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...member of the ugrandite s.s.s. (grossularite and andradite garnets) develops in a metamorphic environment |
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