| | 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: 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 | | | Journal (article/letter/editorial) | in the recovery of rare earth elements from acid mine drainage through pH neutralization M.L.B. Moraes...in the recovery of rare earth elements from acid mine drainage through pH neutralization, Applied Geochemistry...the recovery of rare earth 2 elements from acid mine drainage through pH 3 neutralization 4 MORAES...ensure sustainable and affordable 20 supplies. Acid Mine Drainage (AMD) besides being one of the major 21... 29 The approach proposed herein employed acid mine water and 30 sediment sampling, ICP-OES, XRD, | | Bruno, J, Duro, L, de Pablo, J, Casas, I, Ayora, C, Delgado, J, Gimeno, M.J, Peña, J, Linklater, C, Pérez del Villar, L, Gómez, 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 žSpain / and Poços de Caldas žBrazil / J. Bruno a,) , L. Duro a , J. de Pablo...methodology to the El Berrocal ŽSpain. and Poços de Caldas ŽBrazil. sites. Trace metals under investigation...oxyhydroxides Žboth in El Berrocal and in Poços de Caldas., Ž2. 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 Žsee Fig. 4.. Poços de Caldas ŽBrazil.. 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, 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) | 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....to late-magmatic Main References 1 Poços de Caldas 79–87 (Ar-Ar, K-Ar) 2 Itatiaia 67.5–71.3 Ma...plutons. Main examples of these massifs are Poços de Caldas [14,42] and Itatiaia [15,43]. A small fraction | | | Journal (article/letter/editorial) | aluminum bearing rocks (Duggan et al., 1990), and in mine soils (Alvarez Rodrı́guez et al., 1996), bat guano...Chaı̈rat et al., 2007; Harouiya et al., 2007), monazite (Oelkers and Poitrasson, 2002; Seydoux-Guillaume...controlling solution phosphorus concentration in mine soils in Galicia, Spain. Sci. Total Environ. 180...the Osamu Utsumi mine and the Morro do Ferro analogue study sites, Pocßos de Caldas, Minas Gerais, Brazil...dissolution stoichiometry and rates of a natural monazite as a function of temperature from 50 to 230 °C | | | 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) | minerals are pyrite, galena, apatite, ilmenite, monazite, xenotime, zircon, columbite, pyrochlore, chromite...form of as yet unidentified inclusions of 1 2 mm. Monazite seems to be the least altered mineral of the profile...It re ects the presence of P-minerals such as monazite and xenotime. From these two groups, only Pb and...and quartz (terrigenous admixture). Ilmenite, monazite, xenotime, zircon, apatite, columbite, pyrochlore...substitute for Zr (Bárdossy and Panto, 1973). Monazite Monazite seems to be the least altered mineral of 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... The deposits occur as uraninite, brannerite, monazite and thorouraninite in basal Paleoproterozoic conglomerate...gold mining. In Namibia, the large Rössing open cut mine has been in operation since 1976, and currently | | | Journal (article/letter/editorial) | minor feldspar. Micron accessory minerals such as monazite, zircon, pyrite, marcasite, Fe oxides and Ti oxides...show. In addition, other accessory phases such as monazite, secondary phosphates, and zircon also contribute...white micas. Several accessory minerals, such as monazite, rutile, zircon, tourmaline, pyrite and marcasite...Chemical Geology 214 (2005) 1–19 rich phosphates (monazite-, florencite-type) and zircons (Fig. 3). Most...the REE distribution is minor. In this respect, monazite is one of the accessory heavy minerals observed | | 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) 269–288 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 spring—known as the Horseshoe...inputs, water –rock interaction along the submerged mine walls, and internal metal cycling (Gammons et al | | | 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 | | | Journal (article/letter/editorial) | a mountain stream in Montana that receives acid mine drainage in its headwaters. Three simultaneous 24-h...applications—for example, in watersheds draining abandoned mine lands—the potential exists to use REE concentration...the REE, as is the case for naturally occurring monazite minerals. The 24-h average concentration of each...Studies In a recent investigation of REE in acid mine waters, Verplanck et al. (2004) concluded that the...are strongly acidic in their headwaters owing to mine drainage, have abundant HFO formed by Fe2⫹ oxidation | | | 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 | | | Journal (article/letter/editorial) | and HREE’s (e.g., in apatite, biotite, allanite, monazite, all with their own solubilities) is overlooked...from the Osamu Utsumi mine and Morro do Ferro analogue study sites, Pocos de Calda, 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...granites contain U minerals, in particular uraninite, monazite, xenotime, allanite, and brabantite (Cuney and...uraninite, thorite, and to a lesser extent in monazite, xenotime, apatite, and zircon (e.g., Förster...structurally late N-S striking veins at South Terras Mine (LeBoutillier, 2002) hosted in grey and brown slate...Parana-Karoo basin of South Africa, Angola, and Brazil. Smaller basins in similar position are known from | | | Report (volume) | 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...DEPOSITS Name Ace of Spades Adobe Canyon Gp. Ajax Alice Mine Allan (Johnson) Alta Hill Althouse Alyce and Blue | | | Journal (article/letter/editorial) | Minnesotaite Mirabilite Molybdenite Molybdite Monazite Monetite Montmorillonite Montroseite Montroydite...hanging wall. During a subsequent mining period, the mine was re-opened to recover sideritic parts of the...In places, these minerals such as cassiterite, monazite or gold are concentrated in beds of varying thickness...you look for a mine look near a mine”. This includes the imperative “if 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) | Minnesotaite Mirabilite Molybdenite Molybdite Monazite Monetite Montmorillonite Montroseite Montroydite...hanging wall. During a subsequent mining period, the mine was re-opened to recover sideritic parts of the...In places, these minerals such as cassiterite, monazite or gold are concentrated in beds of varying thickness...you look for a mine look near a mine”. This includes the imperative “if 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 | | | 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 | | | Journal (volume) | .........................319 EM61 Mineralogy of mine wastes and contaminated soil......................and phases composition of flotation waste of Bor mine (Serbia) Cocić, M.1, Matović, B.2 & Logar, M.3*...Myanmar Emeralds from the Piteiras mine, Minas Gerais State, Brazil: genetic implications from fluid inclusion...France The Piteiras mine in Itabira is located in the Minas Gerais State, Brazil and produces gem quality...Temperature (oC) Koffiefontein mine 1087 (±15) 5.2 (±0.1) Finsch mine 1041 (±5) 5.0 (±0.1) The structural | | | Report (volume) | Environmental issues such as coping with uranium mine and mill tailings and other uranium-contaminated...pitchblende, "chalcolite" (= torbemite), autunite, monazite, thorite, "orangite," fergusonite, and "cleveite...was particularly difficult for minerals such as monazite. His frustration shows in his words in a letter...presence of the indicated quantities of uranium in monazite, which I mean to do even if it takes years to...Honeyman 1989). Smellie I 994), Poyos de Caldas in Brazil (Chapman et al. 1990) and the Oklo natural | | | Journal (issue) | the Coastal Zone of the State of Rio de Janeiro, Brazil D. C. Lauria - R. M. R. Almeida - 0. Sracek Abstract...the Buena Lagoon in the State of Rio de Janeiro, Brazil, has high salinity and low pH values. There is...light rare earth elements (LREEs) the leaching of monazite as a common Keywords geochemistry - Natural...Natural radioactive isotopes « Rio de Janeiro - Brazil that suggests source. Radium is present predominantly...the mobility of phosphate released by dissolving monazite is probably reduced due to its adsorption and |
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