... ) 3 F 2 , occurs in a hydrothermal vein crosscutting a metarhyolite of the Rio dos Remédios Group, at the Mula mine, Tapera village, Novo Horizonte county, Bahia, Brazil, associated with hematite, rutile, almeidaite, fluocerite-(Ce), brockite, monazite-(La), rhabdophane-(La) and bastnäsite-(La...

...; Luiz C. A. de Oliveira; José D. Ardisson Abstract Almeidaite (IMA 2013-020), ideally Pb(Mn,Y)Zn 2 (Ti,Fe 3+ ) 18 O 36 (O,OH) 2 , from Novo Horizonte, Bahia, Brazil, occurs in association with quartz, rutile, anatase, hematite, kaolinite, muscovite, xenotime-(Y) and bastnaesite-(La). Almeidaite forms...

...Ricardo Landim Bormann de Borges; Marcel Carvalho de Jesus; Ricardo Costa Rodrigues de Camargo; Francisco de Assis Ribeiro dos Santos Abstract Samples of honey, called marmeleiro honey by its producers, from the state of Piauí, Brazil, were analysed to study their pollen contents. Samples were...

... of the Campos Novos reservoir. Between 19 June and 26 November 2006, the reservoir was emptied due to geotechnical problems in a deviation tunnel, during which almost no events were recorded. The largest RTS earthquake ever observed in Brazil, m b  4.2 (VI–VII) in 1974, was not strong enough...

... from Serra Verde that is composed of multiple smaller grains was also obtained. Two euhedral xenotime crystals from Novo Horizonte, Brazil, measured 2.25 × 0.75 × 0.75 cm (sample C) and 2.5 × 1.4 × 1 cm (sample J) and were dark purple in color with patches of transparency. The xenotime sample from...

...L. D. Mouro; A. C. S. Fernandes; D. W. Rogerio; V. M. Fonseca Abstract The first-described articulated Permian sponge from Brazil, representing Hexactinellida, has been recovered from the Lontras Shale in the Campáleo outcrop (Permian, Asselian–Sakmarian), Rio do Sul Formation, Mafra, in southern...

... of the Amazon craton in Brazil. The unusual low-temperature hydrothermal mineralization at Serra Pelada is epigenetic, hosted by metasedimentary rocks of the Águas Claras Formation and structurally localized in the Serra Pelada overturned syncline. The orebodies are controlled by the intersection of subvertical...

... Horizonte, Companhia de Pesquisa de Recursos Minerais (CPRM) , 589 p. Barros , M.A.S. A , Chemale Jr. , F. , Nardi , L.V.S. , and Lima , E.F. , 2009 , Paleoproterozoic bimodal postcollisional magmatism in the southwestern Amazonian craton, Mato Grosso, Brazil: Geochemistry...

... 1989 ) in xenotime (analysis with an electronic microprobe, this work) and albite-enriched granite (analyses by ICP–MS, in Pires 2010 ). TABLE 2 CRYSTALLOGRAPHIC PARAMETERS OF XENOTIME FROM THE PEGMATITIC ALBITE-ENRICHED GRANITE AND FROM NOVO HORIZONTE Sample 2 σ Novo Horizonte...

...Sérgio Dias-da-Silva; Sean Patrick Modesto; Cesar Leandro Schultz Abstract We describe a large, fragmentary procolophonid skull and three large vertebrae from the Sanga do Cabral Formation, Paraná Basin, Lower Triassic of Brazil. Cranial and dental morphology allow us to refer the skull...

... on the Carajás region, the largest mineral province in Brazil. One of these surveys covered the area of Canaã dos Carajás, where 257 soil samples, including 32 duplicate samples, were collected from the B-horizon of soils within an area of c. 3500 km 2 . The <0.177 mm fraction of these samples was ground...

... of South America and Africa began about 130 m.y. ago ( Maxwell et al. , 1970 ). Actual rifting, or at least invasion of the sea, may have begun earlier, as indicated by the existence of Tithonian marine strata south of Sao Salvador, Brazil (L. de Loczy, personal commun.), but the main separation probably...

... Leste—Província Pegmatítica Oriental . Belo Horizonte , CPRM , 223 pp. (in Portuguese). Pedrosa-Soares A.C. Campos C.M. Noce C.M. Silva L.C. Novo T.A. Roncato J. Medeiros S.M. Castañeda C. Queiroga G.N. Dantas E. Dussin I.A. Alkmim F. ( 2011...

... depósitos minerais , 1 ed., v. 1 : São Leopoldo, Unisinos , p. 63 – 91 . Lindenmayer , Z.G. , and Teixeira , J.B.G. , 1999 , Ore genesis at the Salobo copper deposit, Serra dos Carajás , in Silva , M.G. , and Misi , A. , eds., Base metal deposits of Brazil: Belo Horizonte...

... . Pedrosa-Soares A. C. De Campos C. P. Noce C. Silva L. C. Novo T. Roncato J. Medeiros S. Castañeda C. Queiroga G. Dantas E. Dussin I. Alkmim F. F. , 2011 , Late Neoproterozoic-Cambrian granitic magmatism in the Araçuaí orogen (Brazil), the Eastern Brazilian...

...’ in organic-rich shales presently being targeted using innovative horizontal drilling and fracing (fracturing) technologies. The Cabanillas Group was named and described by Newell (1949 , p. 32) for olive and black shales exposed in the banks of the Cabanillas River, near the towns of Julica...

... Horizonte in Brazil and found that synthetic YPO 4 has a unit cell that is practically indistinguishable from the Brazilian samples. Although the natural xenotime-(Y) studied by Mogilevsky et al. ( 2006 ) has a composition in which 24 mol.% Y is replaced by other REE cations, the difference...

... to a specimen represented by skull and lower jaw fragments, plus carapace and some limb elements from the Morro do Chaves Formation, Early Cretaceous (Barremian) of Estado de Alagoas, Brazil, ( Gallo et al., 2009 ). Recently, it has been proposed that Pelomedusoides (Podocnemidoidea, Pelomedusidae...