 | | Journal (article/letter/editorial) | | INTRA-INTRUSIVE URANIUM DEPOSITS OF PO .COS DE CALDAS, BRAZIL F.E. DE V. LAPIDO LOUREIRO and R.C. DOS SANTOS...NUCLEBRAS, Rua Ga. Polidoro-Bota[ogo, Rio de Janeiro (Brazil) (Received February 24, 1986; revised and accepted...intra-intrusive uranium deposits of Poqos de Caldas, Brazil. In: J.W. Gabelman (Editor), Unconventional..., 3: 227-240. The alkaline complex of Poqos de Caldas is notable for its large size (1000 km 2), wide...The principal ore bodies are located at the Osamu Utsumi Mine, while smaller deposits of probable economic |  | | Journal (article/letter/editorial) | | within six natural analogue studies: PocĂ os de Caldas, Cigar Lake, Maqarin, El Berrocal, Oklo and Palmottu...undertaken in the following systems: PocĂ os de Caldas (Brazil), a Mesozoic volcanic ring-structure hosting...methodology of the BPM exercises, from the PocĂ os de Caldas to the Oklo and Palmottu projects, has not varied...included in this revision: PocĂos de Caldas: SKB (Sweden), KTH (Sweden), PSI (Switzerland)...model the U/Fe association was done in PocĂ os de Caldas by assuming the coprecipitation of U3O8 with Fe(OH)3 |  | Bruno, J, Duro, L, de Pablo, J, Casas, I, Ayora, C, Delgado, J, Gimeno, M.J, Peña, J, Linklater, C, PĂ©rez del Villar, L, GĂłmez, P (1998) Estimation of the concentrations of trace metals in natural systems. Chemical Geology, 151 (1) 277-291 doi:10.1016/s0009-2541(98)00085-0 | Journal (article/letter/editorial) | | approaches to El Berrocal ĆŸSpain / and Poços de Caldas ĆŸBrazil / J. Bruno a,) , L. Duro a , J. de Pablo...methodology to the El Berrocal ĆœSpain. and Poços de Caldas ĆœBrazil. sites. Trace metals under investigation...oxyhydroxides Ćœboth in El Berrocal and in Poços de Caldas., Ćœ2. the interaction of barium and manganese with...association between strontium and fluorite in Poços de Caldas. In most cases, the results were in good agreement...to perform our analyses Ćœsee Fig. 4.. Poços de Caldas ĆœBrazil.. This system presents distinctive peculiarities |  | | Journal (article/letter/editorial) | | 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 M O R I...Nuclear Energy Commission (CNEN), Rio de Janeiro (Brazil) (Accepted for publication January 15, 1986) Abstract...studies: Geology and mineralogy of Morro do Ferro, Brazil. In: N.A. Chapman and J.A.T. Smellie (Guest-Editors)...time. The Morro do Ferro in the State of Minas Gerais, Brazil, could be a suitable analogue for certain...association with other research institutions in Brazil. This joint project entitled "Mobility of Thorium |  | Gomes, Celso de Barros, Azzone, RogĂ©rio 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) | | University of SĂŁo Paulo, SĂŁo 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....and rinkite, rather than simple minerals such as zircon and ilmenite [1,2]. This term was first proposed...the miaskitic types characteristically contain zircon, baddeleyite and titanite, whereas the agpaitic |  | | Journal (article/letter/editorial) | | by alkaline volcanic rock in the Poços de Caldas, Brazil. One rare study of a granite-hosted uranium...granite and uraniferous accessory minerals such as zircon, sphene, allanite and apatite, which commonly occur...Testing of geochemical models in the Poços de Caldas analogue study. Nagra Tech. Rep., NTB 90-29rSKB...Shea, M.E., Smellie, J.A.T., 1992b. The Poços De Caldas: an introduction and a summary of its implications...redox front and U movement in a uranium mine at Poços de Caldas. Radiochim. Acta 52r53, 445â451. Cross |  | Thompson, R. N., Gibson, S. A., Mitchell, J. G., Dickin, A. P., Leonardos, O. H., Brod, J. A., Greenwood, J. C. (1998) Migrating Cretaceous-Eocene Magmatismin the Serra do Mar Alkaline Province,SE Brazil: Melts from the Deflected Trindade Mantle Plume?. Journal of Petrology, 39 (8) 1493-1526 doi:10.1093/petroj/39.8.1493 | Journal (article/letter/editorial) | | Magmatism in the Serra do Mar Alkaline Province, SE Brazil: Melts from the Deflected Trindade Mantle Plume...UNIVERSIDADE DE BRASIÌLIA, 70910 BRASIÌLIA DF, BRAZIL RECEIVED JULY 30, 1997; REVISED TYPESCRIPT ACCEPTED...volcanic remnants, and dyke swarms along coastal SE Brazil. The igneous rocks are emplaced into metamorphics...migrated progressively ~500 km ESE, from Poços de Caldas to Cabo Frio, between ~80 and 55 Ma. It is inferred...mantle plume impacted at ~85 Ma beneath interior SE Brazil where the lithosphere was too thick (>150 km), |  | | Journal (article/letter/editorial) | | biotite (10%) and accessory grains of apatite, zircon and hornblende. Microcrystalline quartz is a common...muscovite and vermiculite. Accessory grains of apatite, zircon and hornblende are present and appear unaltered...accessory (0.5 wt.%) REE-rich apatite (Fig. 4). Zircon grains were too small for laser ablation analysis...South pan may reflect a relatively high zircon content as zircon is known to have a strong HREE enrichment...transuranic actinide elements: an investigation in Minas Gerais, Brazil. Environ. Geol. Water Sci. 6, 1 â 9. Eugster |  | | Book | | ........................................... 25 Brazil .................................................uranium if higher prices justify reprocessing the mine tailings to recover some of the uranium that was...wastewater during environmental reclamation at a mine that has ceased production. The following statistical...Canada South Africa Namibia Russian Federation Niger Brazil Uzbekistan Ukraine Mongolia $40/kgU < $80/ kgU...operations. 9 In Central and South America, Brazil was the only country producing in 2001 and 2002 |  | | Journal (article/letter/editorial) | | galena, apatite, ilmenite, monazite, xenotime, zircon, columbite, pyrochlore, chromite, bastnaesite and...stoichiometric zircon and xenotime with the formation of metamict solid solution of zircon and xenotime:...xenotime: altered zircon rims also bear large amounts of Sc (up to 3.5 wt.%), Fe, Ca and Al in the form of as...mineralogy, trace elements, leucoxene, crandallite, zircon, xenotime, pyrochlore, galena. * E-mail: c.stanley@nhm...ects the presence of minerals such as âleucoxeneâ, zircon, columbite and pyrochlore. Elements without any |  | | Journal (article/letter/editorial) | | a guide in the exploration of this pre-magmatic zircon geochemical dataset in an attempt to elucidate...comparison of whole rock isotopic and premagmatic zircon chemistry. Geochronology of pre-magmatic zircons...isotopically distinct crustal components, which contain zircon populations with distinctive REE signatures. Goldschmidt...connection to Iron chemistry in a former uranium mine â Lake TranebĂ€rssjön F. EDBERG1*, A.F. ANDERSSON2...Centro Hospitalar das Caldas da Rainha, R. DiĂĄrio de NotĂcias, 2500-176 Caldas da Rainha, Portugal The |  | | Report (issue) | | engineered. Once an ore deposit is discovered, a mine is developed and U extracted by a variety of mining...(Australia) Pervomayskoye (Ukraine), Lagoa Real (Brazil), Valhalla (Australia) Pribram , Jachymov (Czech...examples of this deposit type are Lagoa Real in Brazil, Zheltye Vody deposit in Ukraine and Valhalla in...gold mining. In Namibia, the large Rössing open cut mine has been in operation since 1976, and currently...production through the Akouta underground mine and Arlit open pit mine. China had U mines fully operational |  | | Journal (article/letter/editorial) | | feldspar. Micron accessory minerals such as monazite, zircon, pyrite, marcasite, Fe oxides and Ti oxides have...siltstones imply that accessory minerals, such as zircon and Nb-bearing * Corresponding author. Tel.: +34...phases such as monazite, secondary phosphates, and zircon also contribute to the REE contents, although much...transparent resistant minerals, such as tourmaline, zircon and rutile. On the basis of these results, the...Several accessory minerals, such as monazite, rutile, zircon, tourmaline, pyrite and marcasite, as well as organic |  | | Journal (article/letter/editorial) | | elements in Cuporphyry mine tailings in the semiarid climate conditions of Sarcheshmeh mine in southeastern...elements in Cu-porphyry mine tailings in the semiarid climate conditions of Sarcheshmeh mine in southeastern...Elements in Cuporphyry Mine Tailings in the Semiarid Climate Conditions of Sarcheshmeh Mine in Southeastern...khorasani@uk.ac.ir IP T a US Abstract Sarcheshmeh mine is one of the largest Oligo-Miocene porphyry Cu...IP T substitution. CR Keywords: Sarcheshmeh mine tailings; REEs; semiarid climate; ionic potential |  | Gammons, Christopher H, Wood, Scott A, Jonas, James P, Madison, James P (2003) Geochemistry of the rare-earth elements and uranium in the acidic Berkeley Pit lake, Butte, Montana. Chemical Geology, 198 (3) 269-288 doi:10.1016/s0009-2541(03)00034-2 | Journal (article/letter/editorial) | | first REE data reported from a flooded open-pit mine. The results are discussed and placed within the...(2003) 269â288 bedrock and flooded underground mine workings (Duaime et al., 1998; Metesh and Duaime...gallons (>1.11 1011 l) of acidic and metal-rich mine water. The aqueous geochemistry of the Berkeley...phosphorus (Jonas, 2000). In the first 12 years of mine flooding, a large acidic springâknown as the Horseshoe...inputs, water ârock interaction along the submerged mine walls, and internal metal cycling (Gammons et al |  | | Journal (article/letter/editorial) | | the Halfmile Lake and Restigouche deposits and the mine waters (Fig. 4). Restigouche deposit surface waters...from the Halfmile Lake and Restigouche deposits and mine groundwaters (data from Table 1; Leybourne, 1998)...waters, (D) Restigouche deposit groundwaters, (E) mine groundwaters and (F) stream sediments from the Halfmile...the groundwaters and surface waters and for the mine waters. M.I. Leybourne et al. / Applied Geochemistry...ng/L in groundwater samples from the Heath Steele mine (Table 2; Fig. 5). The low- 708 M.I. Leybourne |  | Stille, P., Pierret, M.-C., Steinmann, M., Chabaux, F., Boutin, R., Aubert, D., Pourcelot, L., Morvan, G. (2009) Impact of atmospheric deposition, biogeochemical cycling and waterâmineral interaction on REE fractionation in acidic surface soils and soil water (the Strengbach case) Chemical Geology, 264 (1) 173-186 doi:10.1016/j.chemgeo.2009.03.005 | Journal (article/letter/editorial) | | soils in this catchment indicates that apatite and zircon are the most important phases controlling the Th...groundwaters from Osamu Utsumi mine and Morro do Ferro analogue study sites, Poços de Caldas, Brazil. J. Geochem |  | | Report (issue) | | literature. An example was with the Osamu Utsumi mine in Brazil. This deposit has been reported in the...the literature as Pocos de Caldas, Minas de Caldas and Cereado to name a few synonyms. Hopefully, most...design a similar database model for the CNEN in Brazil in 1983. Since that time, India has also developed...producer. Mine A mine is a deposit from which ore is currently being recovered. Depleted Mine A depleted...depleted mine is, a mine-out or depleted ore deposit with insufficient Reasonably Assured Resources recoverable |  | | Journal (article/letter/editorial) | | metamorphic, and magmatic deposits of the Ukraine, Brazil, and Namibia, and some IOCG and breccia deposits...noted that U- and-Th rich silicate minerals such as zircon, allanite, and U-rich thorite cummulate radiation...economic U mineralization as most U is hosted in zircon, U-Th-Zr-silicophosphates, or niobates rather than...metamic minerals such as allanite, U-thorite, and zircon) (Förster et al., 2008; Cuney and Kyser, 2015;...lesser extent in monazite, xenotime, apatite, and zircon (e.g., Förster, 2010). Therefore, in some of these |  | | Journal (article/letter/editorial) | | te Xenotime-(Y) Zincite Zinckenite Zinnwaldite Zircon Zoisite (ortho/clinozoiste) Zunyite Bi2Te2S (Cu...hanging wall. During a subsequent mining period, the mine was re-opened to recover sideritic parts of the...rock-forming mineral besides microcline, biotite, calcite, zircon, aegirite, pyrochlore and apatite. Duricrusts containing...you look for a mine look near a mineâ. This includes the imperative âif you look for a mine look for smelting...gold-bearing quartz veins in the southern Para State, Brazil (Angelica et al., 1997). Chromium muscovite named | | | Journal (article/letter/editorial) | | te Xenotime-(Y) Zincite Zinckenite Zinnwaldite Zircon Zoisite (ortho/clinozoiste) Zunyite Bi2Te2S (Cu...hanging wall. During a subsequent mining period, the mine was re-opened to recover sideritic parts of the...rock-forming mineral besides microcline, biotite, calcite, zircon, aegirite, pyrochlore and apatite. Duricrusts containing...you look for a mine look near a mineâ. This includes the imperative âif you look for a mine look for smelting...gold-bearing quartz veins in the southern Para State, Brazil (Angelica et al., 1997). Chromium muscovite named |  | | Report (volume) | | shoreline placer Ti deposits 271 Zro 2 grades from zircon in shoreline placer Ti deposits 272 Ti02 grades...based on considerations that extend far beyond the mine itself, in some instances relating to the overall...subject, as in a scale model of the workings of a mine, to a unifying concept that explains or describes...government believed might someday be economic ta mine. Stratiform deposits of large areal extent, such...EXAMPLES High Plateau, Del Norte Cty, USCA Coto Mine, Luzon, PLPN (Wells and others, 1946) (LeBlanc |  | | Report (volume) | | Environmental issues such as coping with uranium mine and mill tailings and other uranium-contaminated...work on uranium-helium dating and by 1910 had used zircon in dating that produced ages of 321 million years...Honeyman 1989). Smellie I 994), Poyos de Caldas in Brazil (Chapman et al. 1990) and the Oklo natural...McKinley IG, Shea ME, Smellie JAT 1990 The Poc;os de Caldas Project: Summary and implications for radioactive...is apparent that coffinite is isostructural with zircon. Thus, coffinite is an orthosilicate with U4+ coordinated |  | | Journal (volume) | | management of nuclear waste...........ix Kelly, N.M.: Zircon â more than just a chronometer............................................319 EM61 Mineralogy of mine wastes and contaminated soil......................under extreme conditions. Elements 5 talks x Zircon â more than just a chronometer Biomineral attractions:...Ludwig Maximilians-UniversitĂ€t, MĂŒnchen, Germany Zircon (ZrSiO4) is a mineral of singular importance in...the conditions of its formation or alteration, zircon has become the foremost among our geochronometers |  | | Book | | Fritsche R (mineralogy), Fohse H. (general), Fuchs H. (Brazil), Grauch R (western USA), Gautier A. (breccia pipe...Granite-Related Vein Uranium Deposits: Schwartzwalder Mine, Front Range, USA ................................when analyzing pitchblende from the George Wagsfort mine at Johanngeorgenstadt, Sachsisches Erzgebirge (Saxonian...City area, Colorado. In Cornwall, the South Terras mine opened for uranium production in 1873. During the...century, most of it coming from the South Terras mine ilear St. Stephen (ca. 275 t). In Colorado, USA |
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