 | | 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, |  | | 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 Hydrogeochemistry and Microbiology of Acid Mine Waters D. Kirk Nordstrom a a U.S. Geological...in the Hydrogeochemistry and Microbiology of Acid Mine Waters, International Geology Review, 42:6, 499-515...in the Hydrogeochemistry and Microbiology of Acid Mine Waters D. KIRK NORDSTROM U.S. Geological Survey...to the hydrogeochemistry and microbiology of acid mine waters and associated tailings and waste-rock waters...microorganisms and their function and ecology in mine-waste environments. A broad diversity of green algae |  | | Journal (article/letter/editorial) | | dissolution: I. The thermodynamics and kinetics of hematite dissolution in bicarbonate solutions at T = 25°C...of hematite dissolution in bicarbonate solutions under constant pC0,. The solubility of hematite is increased...through this work). The rate of dissolution of hematite is enhanced in bicarbonate solutions. This rate...dissolution of hematite in bicarbonate solutions indicate that the dissolution of hematite is surface controlled...measured in groundwaters from the Pocos de Caldas complex in Brazil. INTRODUCI’ION During the past years |  | | Journal (article/letter/editorial) | | sandstone above the redox front in the Osamu Utsumi uranium deposit in Brazil (Read, 1992; Waber et al., 1992)...uranium on ferrihydrite (Ulrich et al., 2006) and hematite (Bargar et al., 1999) show evidence for a U–C...analogous feature in the spectrum of UO2 2þ on hematite as resulting from a U–C scattering in a ternary...associated with Si, Al, Fe gels in a granitic uranium mine. Chem. Geol. 158, 81–103. Allen P. G., Bucher J...uranium(VI)-carbonato adsorption complexes on hematite. Environ. Sci. Technol. 33, 2481–2484. Bargar |  | | Journal (article/letter/editorial) | | by alkaline volcanic rock in the Poços de Caldas, Brazil. One rare study of a granite-hosted uranium...kaolinite, chlorite, pyrite, fine-grained quartz, hematite, fluorite and calcite. In addition, an alkali-metasomatism...are: pyrite, chalcopyrite, galena, sphalerite and hematite. The gangue minerals are: microcrystalline-quartz...ores and the granite is in the form of dispersed hematite 321 and Fe-oxyhydroxides, resulting in a characteristically...Testing of geochemical models in the Poços de Caldas analogue study. Nagra Tech. Rep., NTB 90-29rSKB |  | | 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 |  | | Journal (article/letter/editorial) | | S406Ao; TC: Room) une Patterns: H 330664 FelOs Hematite syn (WL: 1.5406 Ao) G 29-0713 FeO(OH) Goethite...Diffractograms of a coprecipitated at 3% of uranium. The hematite (a-Fe20J) and goethite (mFeOOH) patterns are also...pattern of hematite (a-F%O,) . In the last diffractogram obtained (d) the pattern of hematite is clearly...been previously established. During the Pqos de Caldas analogue project (Bruno et al., 1992a), the decrease...predicted uranium concentrations at the Pocos de Caldas site (see Fig. 9). A similar approach has been |  | | Journal (article/letter/editorial) | | orange clayey soil that contains quartz, kaolinite, hematite and calcite, and is located 0.3 m above the present-day...transuranic actinide elements: an investigation in Minas Gerais, Brazil. Environ. Geol. Water Sci. 6, 1 – 9. Eugster...from the Osamu Utsumi mine and Morro do Ferro analogue study sites, Pocß os de Caldas, Brazil. J. Geochem...Behaviour of the rare earth elements in ochreous mine drainage: a laboratory and field study. PhD thesis...G., 2001. Water – rock interaction in an acidic mine discharge as indicated by rare earth element patterns |  | | 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) | | Conference Abstracts 2010 Reductive dissolution of hematite nanoparticles with ascorbic acid T. ECHIGO1, D... we have studied the reductive dissolution of hematite by ascorbate using two types of nanoparticles...revealed that the 7 nm hematite crystals are pseudo-hexagonal plates, and the 25 nm hematite crystals have diamond...connection to Iron chemistry in a former uranium mine — Lake Tranebärssjön F. EDBERG1*, A.F. ANDERSSON2...Centro Hospitalar das Caldas da Rainha, R. Diário de Notícias, 2500-176 Caldas da Rainha, Portugal The |  | | Journal (article/letter/editorial) | | ore-forming minerals are boehmite, kaolinite and hematite with nearly monomineralic white boehmitic bauxites...le. The main minerals of bauxite are boehmite, hematite and kaolinite. Illite occurs in the less altered...completely. Pseudomorphic replacement of pyrite with hematite is typical. Sometimes, such a pseudomorph can...rocks and soils from the Maicuru complex, Para, Brazil. J. Geochem. Expl., 47, 165 82. Ansheles, O.M....(1996) Zirconium mobility in bauxites of Southern Brazil. J. South Amer. Earth Sci., 9: 161 70. Mordberg |  | | 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...at about 2,200,000 t U , and which occurs in a hematite-rich granite breccia complex in the Gawler Craton...complex is barren hematite– quartz breccia, flanked to the east and west by zones of hematite-rich breccia |  | | Journal (issue) | | study conducted in and around one of the chromite mine of the valley reveals that the concentration of...varying between 0.02 mg/l and (Cr 0.12 mg/l in mine effluents and 0.03 Central Mining Research Institute... the water samples of ground and surface water, mine effluents and R. K. Tiwary which is in the downstream...clearly shows that the soil lying in the vicinity of mine waste dump shows highest concentration of Cr*®....areas. Keywords Chromite Hexavalent chromium mine waste - Leachate - Groundwater modeling Contaminant |  | | Journal (article/letter/editorial) | | showed the presence of opaque minerals, such as hematite, goethite and pyrite, and transparent resistant...The Macuapanim Island point bar, Solimões River, Brazil. J. Sediment. Petrol. 60, 827 – 842. Johnsson,...from the Osamu Utsumi mine and Morro do Ferro analogue study sites, Poços de Caldas, Brazil. J. Geochim |  | | 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) | | contains gibbsite (60-90 vol%), quartz (530 vol%), hematite (5-10 vol%), goethite (<5 vol%), and locally,...Venezuela, and to its personnel in the Los Pijiguaos mine for access to the bauxite deposit and field assistance...theory with application to the Osamu Utsumi uramium mine, Pocos de Caldas, Brazil. J. Geochem. Explor. 45, |  | | 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) | | Hawleyite Heazlewoodite Hectorite Hedenbergite Hematite Hemihedrite Hemimorphite Hercynite Herzenbergite...hanging wall. During a subsequent mining period, the mine was re-opened to recover sideritic parts of the...consist mainly of the minerals kaolinite, goethite, hematite and gibbsite. Latite is an extrusive rock, with...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) | | Hawleyite Heazlewoodite Hectorite Hedenbergite Hematite Hemihedrite Hemimorphite Hercynite Herzenbergite...hanging wall. During a subsequent mining period, the mine was re-opened to recover sideritic parts of the...consist mainly of the minerals kaolinite, goethite, hematite and gibbsite. Latite is an extrusive rock, with...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 |  | | 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) | | were obtained in experiments on Eu sorption to hematite, amorphous Fe hydroxide, quartz, and goethite...in Model Systems. IV. Kinetics of Detachment of Hematite Particles from Steel,” J. Colloid Interface Sci...Suspended Particles and Colloids in Waters from Osamu Utsumi Mine and Morro de Ferro Analogue Study Sites,” |  | | Journal (article/letter/editorial) | | metamorphic, and magmatic deposits of the Ukraine, Brazil, and Namibia, and some IOCG and breccia deposits...assemblages, (i) quartzpolymetallic-sulfides, quartz-hematite, quartz-carbonate-uraninite, (ii) polymetalli...dolomite-uraninite-fluorite, fluorite-quartz, (iii) quartz-hematite-baryte, and (iv) BiCoNi-uraninite, and Fe-Mn-quartz...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 |  | | 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 |  | | Report (volume) | | Environmental issues such as coping with uranium mine and mill tailings and other uranium-contaminated...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...Mascarenhas YP 1991 Phurcalite from Perus, Sao Paulo, Brazil, and redetermination of its crystal structure....the most important U mineral at the Ningyo-toge mine in Japan, where it was first discovered (Muto et |
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