 | | 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 |  | 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...sphalerite, pyrite and chalcopyrite as well as pitchblende, pyrite, carbonates and barite. The exhaustive |  | | 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) | | by alkaline volcanic rock in the Poços de Caldas, Brazil. One rare study of a granite-hosted uranium...Žveins, lens.. The primary uranium mineral is pitchblende, which occurs as impregnations in the host granite...respectively, using the U–Pb method on the sooty pitchblende. These ages represent the time of the three emplacement...brecciation. Metallic minerals associated with pitchblende are: pyrite, chalcopyrite, galena, sphalerite...Testing of geochemical models in the Poços de Caldas analogue study. Nagra Tech. Rep., NTB 90-29rSKB |  | | Book | | ........................................... 25 Brazil ................................................. and by the early part of the 18th centu ry pitchblende was recognized by the miners as a distinct substance...produced "uranium" powder in 1789 by reducing pitchblende with charcoa l. This p roduct was assumed to...and G. Bemont isolated the element radium from pitchblende mined at Jachymov. Later work by Ernest Rutherford...uranium if higher prices justify reprocessing the mine tailings to recover some of the uranium that was |  | | Report (issue) | | Nancy, France michel.cuney@g2r.uhp-nancy.fr the pitchblende led to the discovery of Po and Ra shortly thereafter...precipitated a yellow compound by dissolving pitchblende in nitric acid and neutralizing the solution...(Becquerel 1896). Realization that U isolated from pitchblende was less radioactive than Short course co-sponsored...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 |  | | 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...truncation relations among the veins indicate that pitchblende and uraninite as main U minerals had been repeatedly...with variable mineral assemblages including pitchblende, Fe-sulfides, quartz, carbonates, and/or REE...The main U-bearing minerals in the veins are pitchblende and torbenite at depth and autunite and Pb-metaautunite...structurally late N-S striking veins at South Terras Mine (LeBoutillier, 2002) hosted in grey and brown slate |  | | 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 ................................but also in vein and veinlike-type deposits. "Pitchblende" is used for U0 2 + x varieties of micro- or...Uraninite Pitchblende or or Euhedral (subhedral) uraninite Colloform uraninite Sooty pitchblende or Sooty...press; Ramdohr 1980, and Sect. 2.3.1). The term pitchblende has been maintained for traditional reasons. |  | | Journal (article/letter/editorial) | | Phosphophyllite Phosphosiderite Piemontite Pimelite Pitchblende Plancheite Platinum Plumbogummite Polhemusite...hanging wall. During a subsequent mining period, the mine was re-opened to recover sideritic parts of the...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...conglomerate-hosted U deposits of the Randtype at Jacobina, Brazil (pers. com. P. Laznicka). Chromium-bearing garnet | | | Journal (article/letter/editorial) | | Phosphophyllite Phosphosiderite Piemontite Pimelite Pitchblende Plancheite Platinum Plumbogummite Polhemusite...hanging wall. During a subsequent mining period, the mine was re-opened to recover sideritic parts of the...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...conglomerate-hosted U deposits of the Randtype at Jacobina, Brazil (pers. com. P. Laznicka). Chromium-bearing garnet |  | | 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 |  | | Report (volume) | | Environmental issues such as coping with uranium mine and mill tailings and other uranium-contaminated...Berlin, as part of his investigation of the pitchblende from Erzgebirge of Saxony. The dark metallic...Curie's research revealed radioactivity from pitchblende, "chalcolite" (= torbemite), autunite, monazite...became highly probable that the high activity of pitchblende, chalcolite and autunite was related to the presence...new elements, polonium and radium, from the pitchblende ores of Joachimstahl. The Curies used standard |  | | Book | | Palacz Z. (1986) Evidence from the Parana of South Brazil for a continental contribution to Dupal basalts...in harzburgite xenoliths from the Roberts Victor mine, S. Africa (Stachel et al., 1998). Also shown is...in lherzolite xenoliths from the Roberts Victor mine, S. Africa (Stachel et al., 1998). Shaded field... Although generally forming less than 1 wt.% of mine production, fibrous diamonds can represent up to...Xenoliths, Proc. 5th Int. Kimberlite Conf., Araxa, Brazil. CPRM. Spec. References Publ. 1/a (eds. H. O |
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