| | Report (chapter) | setting of the Guelb Moghrein Fe oxide âCu â Auâ Co mineralization, Akjoujt area, Mauritania JOCHEN KOLB1...Denmark (e-mail: jkol@geus.dk) Abstract: The Guelb Moghrein Fe oxideâ CuâAu âCo deposit is located at the...western boundary of the West African craton in NW Mauritania. The wall rocks to the mineralization represent...stratigraphic base; (2) tholeiitic andesitesâ basalts (Akjoujt meta-basalt unit). The trace element signature...the mineralization, forms a tectonic lens in the Akjoujt metabasalt unit. It can be defined by the high | | | Journal (article/letter/editorial) | oxideâCuâAuâCo mineralization at the Guelb Moghrein deposit, Akjoujt area, Mauritania Received: 3 June 2005 / Accepted:...March 2006 # Springer-Verlag 2006 Abstract The Guelb Moghrein Fe oxideâCuâAuâCo deposit, with a total resource...FeâCoâNi arsenides, arsenopyrite, cobaltite, uraninite, and BiâAuâAgâTe minerals. In contact with wall...chlorite, calcite, albite, and quartz. The Guelb Moghrein ore body is structurally controlled by shear...rocks, metacarbonates, and the Guelb Moghrein ore body of the Akjoujt metabasalt unit in the footwall | | | Report (issue) | 31 Mt at 0.12% Guelb Moghrein (Mauritania) 24 Mt at 0.14% mgt cob cpy Guelb Moghrein (Kirschbaum, 2011)...minor amounts of pyrite, sphalerite, galena. (2) Uraniniteâquartz. (3) Native silver with NiâCo arsenide...1139/e86-145.) Kirschbaum, M.J., 2011, Geology of the Guelb Moghrein iron oxide copper-gold deposit: Unpublished | | | Journal (article/letter/editorial) | 1994). Other minor vein constituents include uraninite and light rare earth element (LREE)-bearing minerals:...contained uranium and LREE minerals, including uraninite and allanite (Bley et al., 2003). Even 14 years...al., 2015); Bi, Co, Ni, and LREEs at Guelb Moghrein, Mauritania (Kirschbaum and Hitzman, 2016); Zn at...2016, Guelb Moghrein: An unusual carbonate-hosted iron oxide copper-gold deposit in Mauritania, northwest...1993, Geology and metallogeny of the Burgas ore region: Sofia, University of Mining and Geology St. Ivan | | | Report (issue) | Petroleum, Energy and Mines, Islamic Republic of Mauritania Second Projet de Renforcement Institutionnel...(PRISM-II) Uranium in the Islamic Republic of Mauritania: Phase V, Deliverable 81 By Gregory L. Fernette...L., 2015, Uranium in the Islamic Republic of Mauritania (phase V, deliverable 81), chap. N of Taylor... Uranium in the Islamic Republic of Mauritania Summary Mauritania has 80 known uranium mineral occurrences...eight types of uranium deposits are recognized in Mauritania. These deposit types include: calcrete, granite-hosted | | | Report (issue) | Petroleum, Energy and Mines, Islamic Republic of Mauritania Second Projet de Renforcement Institutionnel...(PRISM-II) Uranium in the Islamic Republic of Mauritania: Phase V, Deliverable 81 By Gregory L. Fernette...L., 2015, Uranium in the Islamic Republic of Mauritania (phase V, deliverable 81), chap. N of Taylor... Uranium in the Islamic Republic of Mauritania Summary Mauritania has 80 known uranium mineral occurrences...eight types of uranium deposits are recognized in Mauritania. These deposit types include: calcrete, granite-hosted | | | Journal (article/letter/editorial) | and Richard A. Brooker Vol. 101, No. 6, 2016 Uraninite from the Olympic Dam IOCG-U-Ag deposit: Linking...Bystrinskoe Cu-Au-Fe deposit (Eastern Trans-Baikal Region): Russiaâs first example of a skarn-porphyry ore-forming...No. 4, 2015 Chemical compositions of natural uraniniteâPaul Alexandre, Kurt Kyser, Daniel Layton-Matthews...Daniel OzdĂn, and Michal JĂĄnoĆĄĂk Sector zoning in uraniniteâPaul Alexandre, Ron Peterson, and Brian Joy 1...oxidized and reduced granitoids from the Uetsu region, NE Japanâ Yuya Izumino, Teruyuki Maruoka, and | | Acosta-Gongora, P., Gleeson, S. A., Samson, I. M., Ootes, L., Corriveau, L. (2015) Gold Refining by Bismuth Melts in the Iron Oxide-Dominated NICO Au-Co-Bi ( Cu W) Deposit, NWT, Canada. Economic Geology, 110 (2) 291-314 doi:10.2113/econgeo.110.2.291 | Journal (article/letter/editorial) | States; Kuusamo schist belt, Finland; Guelb Moghrein deposit, Mauritania), suggests that Bi and Te could have...(Vanhanen, 2001), and the Cu-Au-Co ± Ni-Bi-Te-Ag Guelb Moghrein deposit (Kolb et al., 2006). These are atypical...minerals here are chalcopyrite, molybdenite, and uraninite. The Southern Breccia has not been affected by...oxide-Cu-Au-Co mineralization at the Guelb Moghrein deposit, Akjoujt area, Mauritania: Mineralium Deposita, v. 41...radiogenic isotopy of the Guelb Moghrein iron oxide-copper-gold-cobalt deposit, Mauritania: Ph.D. thesis, Aachen | | | Journal (article/letter/editorial) | AlemĂŁo/IgarapĂ© Bahia, Brazil; Khetri, India; Guelb Moghrein, Mauritania; Dahongshan, China; Sin Quyen, Vietnam)...Uranium in IOCG deposits generally occurs as uraninite, although brannerite and coffinite have also been...Geochemistry of the Estrela granite complex, Carajas region, Brazil: An example of an Archean A-type granitoid:... P.A., 2005, Uranium deposits of the Mount Isa region and their relationship to deformation, metamorphism | | | Journal (article/letter/editorial) | found next to ferrocolumbite, which also encloses uraninite grains. Pointed bipyramidal torbernite, dark green...an oriented overgrowth of octahedral and cubic uraninite onto Nb-Ta oxides (Fig. 6b,c). In the second mineral...widespread and known to be a host of uraninite (Fig. 6). Octahedral uraninite crystals are found TABLE 1. Composition...6. Ferrocolumbite and uraninite (U) under the SEM-EDX. (a) Octahedral uraninite in pegmatitic quartz.... (b) Intergrowth of uraninite and ferrocolumbite. (c) Single cube-shaped crystal surrounded by ferrocolumbite | | Acosta-GĂłngora, P., Gleeson, S.A., Samson, I.M., Corriveau, L., Ootes, L., Taylor, B.E., Creaser, R.A., Muehlenbachs, K. (2015) Genesis of the Paleoproterozoic NICO iron oxideâcobaltâgoldâbismuth deposit, Northwest Territories, Canada: Evidence from isotope geochemistry and fluid inclusions. Precambrian Research, 268. 168-193 doi:10.1016/j.precamres.2015.06.007 | Journal (article/letter/editorial) | Cobalt belt (Slack, 2012) and the AuâCuâCoâBiâTeâAg Guelb deposit (e.g., Kolb et al., 2006). At NICO, mapping...alteration assemblages (magnetiteâKfeldspar ± biotiteâuraniniteâchalcopyriteâmolybdeniteâarsenopyrite), rates...âźm) euhedral laths that co-precipitated with uraniniteâilmenite ± pyriteâchalcopyrite within a magnetiteâKfeldspar...S.A., (Johnson et al., 2012), and the Guelb deposit, Mauritania (Sakellaris, 2007; Fig. 7B). However,...oxideâCuâAuâCo-mineralization at Guelb Moghrein deposit, Akjoujt area, Mauritania. Miner. Depos. 41, 68â81, | | | Book | deposits in Morocco, Algeria, Tunisia, Mali, Mauritania, Egypt, Sudan, and Eritrea. Originally our goal...the setting and origin of major deposits in the region, together with information on tonnages and grades...comparisons and contrasts with MVT deposits in the region. The last part is focused on sediment-hosted iron...deposits of the Fâderik-ZouĂ©rate iron district in Mauritania, and presents the results of new airborne geophysical...Tunisia, and Comparisons with MVT Deposits in the Region . . . . . . . . . . 497 Sophie DecrĂ©e, Christian | | Oberthur, T., Melcher, F., Henjes-Kunst, F., Gerdes, A., Stein, H., Zimmerman, A., El Ghorfi, M. (2009) HERCYNIAN AGE OF THE COBALT-NICKEL-ARSENIDE-(GOLD) ORES, BOU AZZER, ANTI-ATLAS, MOROCCO: Re-Os, Sm-Nd, AND U-Pb AGE DETERMINATIONS. Economic Geology, 104 (7) 1065-1079 doi:10.2113/econgeo.104.7.1065 | Journal (article/letter/editorial) | Department of Geosciences, Colorado State University, Fort Collins, CO 80523-1482 USA and Geological Survey...mineralogically hosted by brannerite and lesser uraninite (pitchblende). El Ghorfi (2006) noted that high...Witwatersrand, South Africa), where it formed from uraninite and TiO2 phases following the so-called âPronto-reactionâ...Recognition of Archean IOCG mineralization at Guelb Moghrein, Mauritania: Terra Nova, v. 18, p. 345â352. Melcher...accretionary tectonics in the Bou Azzer-El Graara region, Anti-Atlas, Morocco: Geology, v. l7, p. 1107â1110 | | Dill, H. G., Melcher, F., Gerdes, A., Weber, B. (2008) THE ORIGIN AND ZONING OF HYPOGENE AND SUPERGENE Fe-Mn-Mg-Sc-U-REE PHOSPHATE MINERALIZATION FROM THE NEWLY DISCOVERED TRUTZHOFMUHLE APLITE, HAGENDORF PEGMATITE PROVINCE, GERMANY. The Canadian Mineralogist, 46 (5) 1131-1157 doi:10.3749/canmin.46.5.1131 | Journal (article/letter/editorial) | inclusions in columbite-(Fe), and associated with uraninite. In comparison with neighboring pegmatites, sulfur-bearing...compared to the pegmatites around Hagendorf. Uraninite formed during the emplacement of the aplite together...mineralogist columbite-(Fe) carrying inclusions of uraninite and barite are assumed to form part of the early...attributed to the youngest granitic activity in this region (Wendt et al. 1994). The early magmatic stage I...recognition of Archean IOCG mineralization at Guelb Moghrein, Mauritania. Terra Nova 18, 345-352. Melcher, F. | | Van Lichtervelde, Marieke, GrandâHomme, Alexis, de Saint-Blanquat, Michel, Olivier, Philippe, Gerdes, Axel, Paquette, Jean-Louis, Melgarejo, Joan Carles, Druguet, Elena, Alfonso, Pura (2017) U-Pb geochronology on zircon and columbite-group minerals of the Cap de Creus pegmatites, NE Spain. Mineralogy and Petrology, 111 (1) 1-21 doi:10.1007/s00710-016-0455-1 | Journal (article/letter/editorial) | units as well as wolframite, Sc-rich rutile and uraninite. The internal structure of type III pegmatites...minerals of the columbite group, cassiterite and uraninite. Type IV pegmatites are the most evolved in the...ÎŒm), but they were highly metamict and rich in uraninite inclusions, and displayed uninterpretable ages...granites associated with pegmatites in the Albera region, also dated at 298.5 Ma, is an evidence that peraluminous...recognition of Archean IOCG mineralization at Guelb Moghrein, Mauritania. Terra Nova. 18:345â352 Millonig LJ, | | | Report (issue) | Taylor and others, 2013). Large deposits in this region from which byproduct cobalt is currently or has...gold, with concentrations in some deposits of uraninite, bastnĂ€site (or bastnaesite), monazite, cobaltite...safflorite, skutterudite, gersdorffite, niccolite, uraninite, arsenopyrite, pyrite, pyrrhotite, sphalerite...vein deposits have been those in the Erzgebirge region of the Czech Republic and Germany (Hermann, 2005)...occur in Pliocene alkaline basalts of the Calatrava region in central Spain (Crespo and Lunar, 1997). These | | | Journal (article/letter/editorial) | data of quartz from the granitic plutons from this region possess high salinity fluids, which recommend the...analysis; Geological Survey of India (GSI), Western Region, Jaipur for support in the field areas. Mr. I.... 1997. The Precambrian geology of the Aravalli region, southern Rajasthan and northeastern Gujarat. Mem...of magnetite from Fe(âCu) deposits in the Hami Region, Eastern Tianshan Orogenic Belt, NW China. Acta...studies on iron oxideâCuâAu deposits in the Kolari region, northern Finland. Ore Geol. Rev. 30, 75â105. | | Sindern, Sven, Gerdes, Axel, Ronkin, Yuri L., Dziggel, Annika, Hetzel, Ralf, Schulte, Bernd Aloys (2012) Monazite stability, composition and geochronology as tracers of Paleoproterozoic events at the eastern margin of the East European Craton (Taratash complex, Middle Urals) Lithos, 132. 82-97 doi:10.1016/j.lithos.2011.11.017 | Journal (article/letter/editorial) | Harlov, D.E., 2008. Metasomatic thorite and uraninite inclusions in xenotime and monazite from granitic...recognition of Archean IOCG mineralization at Guelb Moghrein, Mauritania. Terra Nova 18, 345â352. Millonig, L | | | Journal (article/letter/editorial) | eastern Mediterranean is reported to be in the region ca. 1 â 7 ppm. Here we present the occurrence of...the deep-water distribution of these gases in the region of a recently discovered hydrothermal vent at 8°17...in the plume. The distribution of methane in the region varied temporally, but during the first week of...tracers to estimate rates of methane oxidation in the region and of plume dispersion according to a Gaussian...a low degree of partial melting at their source region in the mantle. Beneath the ocean basins, the presence | | | Journal (article/letter/editorial) | These, and probably the deposits of the East Sayan region (e.g. Zun Holba, Sora, Aksug), are part of the...formed, potentially at a similar time, but this region is dominated by deformation and plutonism associated...km along the eastern Asian Pacific margin. This region of lithosphere loss has a remarkable association...formation. The Kupol epithermal gold deposit Chukotka Region, NE Russia H. C. Golden 11/13 Proletarskaya Street...(ELIP>6105 km2; TLIP52?56105 km2). In the Norilâsk region of the SLIP the basalts stand up as mesas above | | | Book | ("solutions", "melts", and " v a p o r s ' " in this region are not sharply distinguishable). However, this...fluid (supercritical), pass below 400 °C into the region of liquid aqueous solutions. At the same time their...Chemnitz, and several of the veins of the Freiberg region are distinguished by predominant lead-zinc ores...mine, Blind River, Ontario RAMDOHB Grains of uraninite (not well rounded), in part with traces of crystal...Cassiterite . . . Pyrolusite and Psilomelane . . Uraninite . . . . Hematite . . . . Maghemite . . . Ilmenite | | | Report (issue) | array occupies the site of a former landfill at Fort Carson, Colorado. Tellurium is a critical component...production for the period 2006â10, by country or region and amount.......................................showing selenium concentrations in coal samples, by region of the United States.............................tellurium refinery production in 2013, by country or region..................................................485 p. Sears, Louis, 2011, Jargon alertâUtility: Region Focus (Federal Reserve Bank of Richmond), v. 15 |
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