 | | Report (issue) | | BR-76 MINISTERIO DAS MIMAS E ENERGIA COMPANHIA DE PESQUISA DE RECURSOS MINERAIS UNITED STATES DEPARTMENT...REPORT Brazil Investigations (IR)BR-76 NIOBIUM (COLUMBIUM) AND TANTALUM RESOURCES OF BRAZIL U. S. Geological... NIOBIUM (COLUMBIUM) AND TANTALUM RESOURCES OF BRAZIL By Max G. White U.S. Geological Survey CONTENTS...Distribution of alkalic intrusives in Southern Brazil .. 16 Alkalic intrusions in the western side of...geologic setting of deposits .............. 24 Minas Gerais ...................................... 24 Bahia |  | | Journal (article/letter/editorial) | | within six natural analogue studies: Pocß os de Caldas, Cigar Lake, Maqarin, El Berrocal, Oklo and Palmottu...undertaken in the following systems: Pocß os de Caldas (Brazil), a Mesozoic volcanic ring-structure hosting...methodology of the BPM exercises, from the Pocß os de Caldas to the Oklo and Palmottu projects, has not varied...included in this revision: Pocßos de Caldas: SKB (Sweden), KTH (Sweden), PSI (Switzerland)...model the U/Fe association was done in Pocß os de Caldas by assuming the coprecipitation of U3O8 with Fe(OH)3 |  | Fernandes, Alexandre Martins, Conceição, Fabiano Tomazini da, Spatti Junior, Eder Paulo, Sardinha, Diego de Souza, Mortatti, Jeferson (2016) Chemical weathering rates and atmospheric/soil CO2 consumption of igneous and metamorphic rocks under tropical climate in southeastern Brazil. Chemical Geology, 443. 54-66 doi:10.1016/j.chemgeo.2016.09.008 | Journal (article/letter/editorial) | | metamorphic rocks under tropical climate in southeastern Brazil Alexandre Martins Fernandes, Fabiano Tomazini da...da Conceição, Eder Paulo Spatti Junior, Diego de Souza Sardinha, Jeferson Mortatti PII: DOI: Reference:...Conceição, Fabiano Tomazini, Spatti Junior, Eder Paulo, de Souza Sardinha, Diego, Mortatti, Jeferson, Chemical...metamorphic rocks under tropical climate in southeastern Brazil, Chemical Geology (2016), doi: 10.1016/j.chemgeo...tropical climate in southeastern SC RI P T Brazil NU Alexandre Martins Fernandes1, Fabiano Tomazini |  | Ferreira, Raianny Carolini Ramos, Pinheiro, Marco Aurélio Piacentini, Magalhães, Joana Reis, Novo, Tiago Amâncio, Schorscher, Johann Hans Daniel, Queiroga, Gláucia (2020) Physical volcanology and petrogenesis of the Archean Quebra Osso komatiite flow field, Rio das Velhas greenstone belt, Quadrilátero Ferrífero (Brazil). Lithos, 370. 105626pp. doi:10.1016/j.lithos.2020.105626 | Journal (article/letter/editorial) | | Velhas Greenstone Belt, Quadrilátero Ferrífero (Brazil) Raianny Carolini Ramos Ferreira, Marco Aurélio...Velhas Greenstone Belt, Quadrilátero Ferrífero (Brazil), LITHOS (2020), https://doi.org/ 10.1016/j.lithos...Velhas Greenstone Belt, Quadrilátero Ferrífero (Brazil) Raianny Carolini Ramos Ferreiraa,b,* raianny.ferreira@cprm...aGeological Survey of Brazil, Av. Brasil 1731, CEP 30140-002, Belo Horizonte, MG, Brazil f de Pesquisa Manoel...Costa, Instituto de Geociências, Universidade oo bCentro Federal de Minas Gerais (CPMTC-IGC-UFMG) |  | | Report (issue) | | PLURINATIONAL STATE OF BOSNIA AND HERZEGOVINA BOTSWANA BRAZIL BRUNEI DARUSSALAM BULGARIA BURKINA FASO BURUNDI...remain the responsibility of the contributors and do not necessarily represent the views of the IAEA or....................................... 38 6.4.3. Brazil..................................................most frequent concentrations of thorium in monazite do not exceed 10%. Other common minerals, however lower...specific circumstances, thorium may form deposits that do not contain uranium or only in very small amounts |  | | Journal (article/letter/editorial) | | protocontinent in the south São Francisco craton, Brazil Mariana Brando Soares, Atlas Vasconcelos Corrêa...protocontinent in the south São Francisco craton, Brazil, Gondwana Research(2019), https://doi.org/10.1016/j...protocontinent in the south São Francisco craton, Brazil Mariana Brando Soares1, Atlas Vasconcelos Corrêa...Programa de Pós-Graduação em Geologia (PPGL), Instituto de Geociências, Universidade Federal do Rio de Janeiro...Janeiro, Brazil. 2 - Departamento de Geologia, Instituto de Geociências, Universidade Federal do Rio de Janeiro |  | | 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...Programa de Pós-graduação em Geociências, Instituto de Geociências, Universidade Federal do Rio Grande...Grande do Sul. Avenida Bento Gonçalves 9500, Porto Alegre, 91501-970, RS, Brazil. ingrid.hadlich@ufrgs.br |  | | Journal (issue) | | (049)-5132-836716 e-mail: envgeo@freenet.de Anne Marie De Grosbois for submittal of items for: Views and news...York Skougstad MW, Fishman MJ, Friedman LC, Erdmann DE, Duncan SS (1979) Methods for determination of inorganic...in both creeks were dependent on the water pH and de- Department of Geology and Geophysics University...Interscience, New York Fiszman M, Pfeiffer WC, Drude de Lacerda L (1984) Comparison of methods used for extraction...Sepetiba Bay, Environ Technol Lett Galan sedi- RJ (Brazil). 5:567-575 E, Gomez-Ariza JL, Gonzalez 1, |  | | Book (edition) | | Salinas, Peru, H Variscite, xx 5 mm, Iturnbiara, Brazil, H Rhodocbrosite, polished, 50 mm, Capillitas,... China, H Page 1: MuscO\ite. 45 mm, Linopolis, Brazil, H Page 2: Vivianite, I 00 mm, Huanzala, Bolivia...Ethiopia, G Page 12: Brazilianite, 35 mm, Linopolis, Brazil, H Page 13: Gold, 35 mm.Eagle's est Mine, California..."Dana's System of Mineralogy•· ( 1944, I 951, 1962). de Fourestier (1999) and Strunz and Nickel (2001). Mi11eral...ASG -Archives de Science Geneve BM - Bulletin de la Societe fram;aise de mineralogie et de cristallographie |  | | Report (issue) | | (Australia) Pervomayskoye (Ukraine), Lagoa Real (Brazil), Valhalla (Australia) Pribram , Jachymov (Czech...(and other) rocks and commonly contain deposits that do not fit into other types, and have origins that are...examples of this deposit type are Lagoa Real in Brazil, Zheltye Vody deposit in Ukraine and Valhalla in...fertilizers by several countries and most countries do not report U from phosphorite as a resource. (8)...of Th include Australia, USA, Turkey, India and Brazil, although most countries have not been diligent |  | | Book | | present level of exposure. Even when veins 1008 do occur within or in the proximity of a "granite",... because most postmagmatic hydrothermal deposits do occur in the proximity, in the aureole of igneous...Paredes J.) in Bellido and de Montreuil (1972). Abbreviations: CP=Cerro de Pasco; M=Morococha; Ml=Mala...around the Andean Batholith of Peru (Bellido and de Montreuil, 1972; Putzer, 1976; Hollister, 1978) is...major Pb,Zn,Ag replacements and veins (e.g. Cerro de Pasco, Casapalca; Chapter 26), all marked by intensive |  | | Book (edition) | | International Symposium on Carbonatites in Pocos de Caldas, Brazil for which this writer was keynote speaker... 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...Survey and H. S. de Schmid (1912) Figure 12-4 : Canadian Geological Survey and H. S. de Schmid (1912) Figure |  | | Book | | A. F. Corey, M. S. Corey, R. 'l\T. Deane, A. P. De Carvalho, L. F. Dellwig, M. Deul, S. B. Dickinson... . . . . . . . . . . . . . . . . . . . . . . . Brazil . . . . . . . . . . . . . . . . . . . . . . . ......... . ..... . ........ . ................ . Brazil ...... . .... .... ............... .. ....... ...all com.ets are turned from the, sun. I do not knoiv why they do this, whether it is etiquette among thern...oxides, hydroxides, oxygen salts, and silicates. They do not occur naturally as native elements, sul:6des |  | | Book | | present level of exposure. Even when veins 1008 do occur within or in the proximity of a "granite",... because most postmagmatic hydrothermal deposits do occur in the proximity, in the aureole of igneous...Paredes J.) in Bellido and de Montreuil (1972). Abbreviations: CP=Cerro de Pasco; M=Morococha; Ml=Mala...around the Andean Batholith of Peru (Bellido and de Montreuil, 1972; Putzer, 1976; Hollister, 1978) is...major Pb,Zn,Ag replacements and veins (e.g. Cerro de Pasco, Casapalca; Chapter 26), all marked by intensive |  | | Book (edition) | | es: CW DB DE DG DJ DK DM DO DP DS EB EO EE FM GD GG GH GM Arnold Hampson David Baker Ben De Witt William... All faces or other surfaces on a given mineral do not necessarily exhibit the same luster. Some minerals...more references where all references are inadequate, do not contain good bibliographies, or are in conflict...CLASS: 4/mmm SPACE GROUP: P4/ncc; P4/nmm(Pseudo) Ve De LATTICE CONSTANTS: Ga tae 9908 3 STRONGEST DIFFRACTION...in a calcite matrix Mendoza, Argentina. at Cerro de Cacheuta, SELECTED REFERENCE: Deer, Howie, and Zussman | | | Book (edition) | | Tsurneb, Namibia, (lower, right) gold, Amazonas, Brazil All specimens from the collection of Eugene and...figure caption code. Arnold Hampson David Baker Ben De Witt William Larson Carlos Barbosa Cal and Kerith...Mines cw Charles and Marcelle Weber DB Dan Behnke DE Demetrios Pohl DG Richard Graeme DJ D. K. Jones Douglas...Douglas K. Miller DK Arizona-Sonora Desert DM Museum DO = "Donald Olson Delma Perry DP DS David Shannon EB...forth. All faces or other surfaces on a given mineral do not necessarily exhibit the same Juster. Some minerals |  | | Book | | perspective of the modeling specialty, and some that do are so terse and technical as to discourage the average...Géologique at Ecole Nationale Supérieure des Mines de Paris in Fontainebleau, France. I began writing...(eetince iNivaw the Senne 270 ae ’ i cee eaean de lai : : JOT- i : aie, Pidtcade sae Pee HT...equivalent to the equilibrium constant approach, and do not discuss them as a separate group. 6 GEOCHEMICAL...thermodynamic basis for the equations I derive, but do not attempt a complete development of the field of |  | | Journal (article/letter/editorial) | | composition Line Sanbornite Sanidine, orthoclase, microcline Santafeite Santanaite Saponite Sapphirine Sarabauite...orientation of individual veins is often seen, they do not show up in platform sediments far off the uplifted...control on the aerial extension of these veins which do not reach very deep into the host rock underneath...which sometimes are enriched in inorganic compounds do not directly fit in this differentiation scheme and...classification scheme like this, these man-made raw materials do not fit in, even if they are primarily derived from | | | Journal (article/letter/editorial) | | composition Line Sanbornite Sanidine, orthoclase, microcline Santafeite Santanaite Saponite Sapphirine Sarabauite...orientation of individual veins is often seen, they do not show up in platform sediments far off the uplifted...control on the aerial extension of these veins which do not reach very deep into the host rock underneath...which sometimes are enriched in inorganic compounds do not directly fit in this differentiation scheme and...classification scheme like this, these man-made raw materials do not fit in, even if they are primarily derived from |  | | Report (issue) | | Revision of the geology of diamond districts in Bahia, Brazil, by Max G. White and Charles T. Pierson _________...Bahia, Brazil, by D. D. Haynes and J. J,. Matzko_---364. Thorium and rare earths in the Po~tos de Caldas...Caldas zirconium district, Brazil, by Helmuth Wedow, Jr _____________ _ 365. Vegetation-free zone on dry...Eugenio Tavera Amezcua, Jesus Ojeda Rivera, Zoltan de Cserna, and Roger van Vloten--------------------...Carlson__ 391. Isostatic compensation in the Sangre de Cristo Mountains, New Mexico, by Gordon E. Andreasen |  | | Report (volume) | | Ce) Ti Oa - - - - - - - - - (Y, U)(Ti, Zr, Fe, Nb)dO, OH)a -· - - - - - - Cerian ferrian pyrochlore -...Cienc. Anais-Academia Brasileira de Ciencias, Anais. Rio de Janeiro, Brazil. Acad. Cienc. Lisboa, Cl. Sci...Sci. Mem.-Academia das Ciencias de Lisboa. Classe de Sciencias. Memorias. Lisbon, Portugal. Acad. Nat....Polonaise Sci. Bull., Ser. Sci. Geol. et Geog.-Bulletin de l'Academie Polonaise des Sciences, Serie des Sciences...Cl. Sci.-Academie Royale des Sciences de Belgique, Bulletin de Ia Classe des Sciences. Brussels, Belgium |  | | Book (edition) | | etc. All faces or other surfaces on a given mineral do not necessarily exhibit the sa1ne luster. Mode of...references where all references are inadequate or do not contajn good bibliographies or are in conflict...text. Our procedure was changed, in part, because we do not want to represent this book as the best reference...another matter: I do not quite know how my love for the microscope began, but I do know about the 1ninerals...intergrown with clausthalite in a calcite matrix at Cerro de Cacheu ta, Mendoza, Argentina. BEST REF. IN ENGLISH: |  | | Book | | editors Roland Oberhänsli, Potsdam, Germany Maarten J. de Wit, Port Elizabeth, South Africa François M. Roure...Paulo São Paulo Brazil Pedro Oyhantçabal Departamento de Geodinámica Interna Universidad de la República...Instituto de Geociencias Básicas, Aplicadas y Ambientales de Buenos Aires (IGEBA) CONICET-Universidad de Buenos...deposits in the Sierras v vi Preface Australes de Buenos Aires in Argentina and correlated them with...recognized similarities in the ‘old granites’ of Brazil and southern Africa. On the other hand, du Toit |  | | Report (issue) | | -----------------------------Mineral potential: 1Nhere do 1Ne stand? --------Lo1N-grade ores and the environment...civilization and standard of living? (2) how much of it do we have and to what extent is it economically and...our supply of any minerals unlimited? Of which ones do we have very little, or are we likely to run out...question to which the volume is directed : Where do we stand with regard to resources of each commodity...research along many lines. MINERAL POTENTIAL: WHERE DO WE STAND? Each chapter of the volume has its own |  | | Report (issue) | | countriesiron-ore deposits, Minas Gerias, Brazil ____________ Lead-zinc deposits, Bahia, Brazil _________________...that dips under the ore body at a low angle. Microcline in quartz veins, fluid-inclusion measurements...York Subsurface stratigraphic studies by Wallace de Witt, Jr., show that the Genesee, Sonyea, West Falls...and the gravel is removed only during floods that do not run off underground. Surface-water studies in...originally shale, sandy shale, and calcareous shale, and do not contain the large amount of greenstone and conglomeratic |
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