 | | Journal (article/letter/editorial) | | ANALOGUE STUDIES: GEOLOGY AND MINERALOGY OF MORRO DO FERRO, BRAZIL P.M.C. B A R R E T T O a n d K. F U J I...Brazilian Nuclear Energy Commission (CNEN), Rio de Janeiro (Brazil) (Accepted for publication January 15, 1986)...analogue studies: Geology and mineralogy of Morro do Ferro, Brazil. In: N.A. Chapman and J.A.T. Smellie (Guest-Editors)...understanding of the Th- and REE-rich orebody at Morro do Ferro as a possible natural analogue for a radioactive...long period of time. The Morro do Ferro in the State of Minas Gerais, Brazil, could be a suitable analogue |  | Gomes, Celso de Barros, Azzone, Rogério Guitarrari, Rojas, Gaston Eduardo Enrich, Guarino, Vincenza, Ruberti, Excelso (2021) Agpaitic Alkaline Rocks in Southern Brazilian Platform: A Review. Minerals, 11 (9) 934 doi:10.3390/min11090934 | Journal (article/letter/editorial) | | Rocks in Southern Brazilian Platform: A Review Celso de Barros Gomes 1, *, Rogério Guitarrari Azzone 1 ,... University of São Paulo, São Paulo 05508-080, Brazil; rgazzone@usp.br (R.G.A.); gastonenrich@usp.br...occurrences located in southern Brazil and at the border between Brazil and Paraguay. All the Brazilian...Triassic. The most significant occurrence is Poços de Caldas, the largest alkaline massif in South America...main to late-magmatic Main References 1 Poços de Caldas 79–87 (Ar-Ar, K-Ar) 2 Itatiaia 67.5–71 |  | Andersen, Allen K., Clark, James G., Larson, Peter B., Donovan, John J. (2017) REE fractionation, mineral speciation, and supergene enrichment of the Bear Lodge carbonatites, Wyoming, USA. Ore Geology Reviews, 89. 780-807 doi:10.1016/j.oregeorev.2017.06.025 | Journal (article/letter/editorial) | | lateritically weathered carbonatite at Araxá and Catalão I, Brazil and Mt. Weld, Australia (cf., Zaitsev et al., 1998;...Juquiá, Brazil; Bayan Obo, China; Karonge, Burundi; and the Barra do Itapirapuã carbonatite, Brazil, among...et al., 1997): 2REE3+ ↔ (Th,U)4+ + (Ca,Sr)2+ (cheralite/brabantite–type) (1) REE3+ + P5+ ↔ (Th,U)4+...crystals are smaller, lack the clear hexagonal form, and do not experience degradation due to dehydration during...leaching during alteration and ion exchange processes do not typically affect the ratio of B-site cations |  | | 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...monazite xenotime Th-crandalite brockite brabantite cheralite eylettersite kivuite karnasurtite fenghuangite |  | | Report (issue) | | PLURINATIONAL STATE OF BOSNIA AND HERZEGOVINA BOTSWANA BRAZIL BRUNEI DARUSSALAM BULGARIA BURKINA FASO BURUNDI...particular the contributions of the late R. Villas-Boas (Brazil). The IAEA officers responsible for this publication...remain the responsibility of the contributors and do not necessarily represent the views of the IAEA or.............................................. 39 BRAZIL .................................................Gondwana supercontinent and which are now found in the Brazil Shield, southern and eastern Africa, Madagascar |  | | Report (volume) | | Cerphosphohuttonite- - - (Th, Ce) (Si, P)0 4 • l.SH20 - Cheralite - - - - - (Ca, Ce, Th) (P, Si)04- - - - Chernovite...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 |  | | 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 |  | | 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 (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 | | behaviour but sufficiently significant fractionations do occur, which have proved to be of great importance...ions can occupy six-fold co-ordination sites but do so only rarely in minerals. Normally the co-ordination...Experimental determinations do not suffer from the same associated uncertainties as do those from natural systems...on element distribution. The experiments, however, do not reproduce all the conditions prevailing during...geochimique des gisements d e fluorine bases sur l'etude de la distribution des lanthanides — application au |  | | Book | | totally disrupted at this stage, most mafic magmas do not show isotopic signatures indicative of interaction...fi/en/bedrock.html). Jatulian sedimentary and volcanic rocks do not host notable syngenetic metal enrichment in Finland...~2000 Ma CLGB and Kainuu belt banded iron formations do not fit with any major peak of BIF occurrence in...basic intrusions in Finland. Bulletin de la Commission Géologique de Finlande 209, 54. 64 CHAPTER 2 SYNTHESIS...Mineral Deposits: Research and Exploration—Where Do They Meet? Proceedings of the Fourth Biennial SGA |
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