 | | Journal (article/letter/editorial) | | iron-formations are enriched in magnetite, martite and hematite rarely goethite and SiO2 mainly in the form of...the oxide facies comprising the magnetite and hematite subfacies. In the magnetite-free silicate facies...magnetite in the form of porphyroblasts, whereas hematite is mainly of secondary origin due to the formation...either from the replacement of magnetite (not of hematite) or from Fe-rich descending solutions. The analytical...magnetite) and the recrystallization of martite into hematite, field IIa (magnetite – silicate facies) grades |  | | Journal (article/letter/editorial) | | Minerals (1984) 19, 843-856 CHARACTERIZATION OF ITAKPE AND AGBAJA ( N I G E R I A N ) IRON ORES F. A....F . R . S A L E * Delta Steel Complex, Warri, Nigeria, and *Department of Metallurgy and Materials Science...1984) A B S T R A C T : Two iron ore samples from Nigeria have been examined using TG, DTA, EGA, XRD, and...and optical and electron microscopy. Itakpe iron ore is hematite-rich, this mineral being intergrown with...alumina, silica and phosphorus as major impurities. Itakpe is typical of a rich ore formed by magmatic segregation |  | | Journal (article/letter/editorial) | | The Kakun Igneous Cumulate Magnetite Deposit, SW Nigeria A. E. Annor ~ and A. Mficke 2 1Department of Geology...Mineral Sciences, University of Ilorin, Ilorin, Nigeria 2 Mineralogisch-Petrologisches Institut der Georg-August...Precambrian iron deposit in Kakun, southwestern Nigeria is presented and a genetic model is advanced. The...magmatische Cumulat-Ma#netit Lagerstfttte yon Kakun, SW Nigeria Es werden feldgeologische und mineralogische Informationen...einer prgkambrischen Eisenlagerst/itte in Siidwest-Nigeria prfisentiert, und ein genetisches Model vorgestellt |  | | Book | | George Obaje Geology and Mineral Resources of Nigeria 123 Prof. Nuhu George Obaje Nasarawa State University...University Dept. Geology & Mining Keffi Nigeria nobaje@yahoo.com ISSN 0930-0317 ISBN 978-3-540-92684-9...Resources of Nigeria are very few and mostly not accessible in Libraries and Bookshops in Nigeria. This book...activities in the Geology and Mineral Resources of Nigeria. The author has brought together several published...students of geology in tertiary institutions in Nigeria and abroad. Additional insights were also provided |  | | Journal (article/letter/editorial) | | Department of Geology, University of Ibadan, Ibadan/Nigeria. Band 69, Heft 2, 1980,Seite 411--428 411 Aufs~itze...two regions: east of the craton in Togo-Benin-Nigeria, and west of the craton along a coastal belt extending...Ma respectively from gneisses in southwestern Nigeria. Within the Nigerian-Dahomeyan basement, a series...western Liberia, Ivory Coast, Togo, Benin and Nigeria (Fig. 2). They are most commonly infolded within...values. Within the schist belt of northwestern Nigeria (Fig. 8) asbestiferous anthophyllate occurs as |  | | Journal (article/letter/editorial) | | preserved, but primary Fe-silicates, hydrohematite or hematite were converted into magnetite, quartz and silicates...Al, Si, K, Ca), TiO2 (Ti), almandine (Mn) and hematite (Fe). The amphibole analyses (Tabs 2 and 3) were...end-members – pyrophanite, geikielite, “perovskite”, hematite and eskolaite. 4. Petrography 4.1. Rocks of...contain fine, nearly sub-microscopic exsolutions of hematite and corundum and may be replaced by titanite....chlorite, feldspar (albite and K-feldspar), ilmenite, hematite (all in grains c. 5 to 10 μm across) and apatite |  | | Journal (article/letter/editorial) | | IOTs are shown in Figure 1, and included quartz, hematite, and magnetite. After analyzing the iron phases...the total iron was in the form of magnetite or hematite (Table 2), whereas Minerals 2019, 9, 232 3...the total iron was in the form of magnetite or hematite (Table 2), whereas 37.31 wt % of the total iron...0.06 0.10 0.03 P 0.03 1-Quartz 2-Magnetite 3-Hematite 4-Chlorite 5- Hornblende 1 54 Na 2O 0.32 0.32...content/wt % 18.12 2.29 Fraction/wt % 18.12 Hematite and Hematite and Limonite Iron Iron Iron Carbonate Iron |  | | Journal (article/letter/editorial) | | Sludge Flocculation Process-Examples from Omarska Mine Ljiljana Tankosić 1, *, Pavle Tančić 2 1 2 3...quartz; less clay minerals; and minor magnetite, hematite, clinochlore and todorokite. They have quite similar...Prijedor and Banja Luka [1,2]. Iron ore from Omarska mine was previously assigned as limonite ore in association...of the two principal iron ores (the other being hematite, Fe2 O3 ), and has been mined for the production... Minerals 2018, 8, 119 2 of 19 contents of hematite, magnetite, feldspars, amphiboles, chloritoid |  | Bullock, Liam, Parnell, John, Perez, Magali, Feldmann, Joerg, Armstrong, Joseph (2017) Selenium and Other Trace Element Mobility in Waste Products and Weathered Sediments at Parys Mountain Copper Mine, Anglesey, UK. Minerals, 7 (11) 229 doi:10.3390/min7110229 | Journal (article/letter/editorial) | | and Weathered Sediments at Parys Mountain Copper Mine, Anglesey, UK Liam A. Bullock 1, * ID , John Parnell...North Wales) hosts exposed pyritic bedrock, solid mine waste spoil heaps, and acid drainage (ochre sediment)...across bedrock and weathered deposits. Man-made mine waste deposits show enrichment of As, Bi, Cu, Sb...Sulphide-mineral oxidation within current and former mine sites is a significant environmental threat faced...bedrock, smelt materials, weathering soils, and acid mine drainage (ochre) sediments, (2) identification of |  | Konečný, P., Kohút, M., Rojkovič, I., Siman, P. (2011) Petrology and monazite dating of the Fe-rich gneisses from Kokava (Veporic Unit, Western Carpathians, Slovakia): Devonian sediments supplied from Gondwanan-sources metamorphosed in the Variscan times. Journal of GEOsciences, 56 (2) 181-200 | Journal (article/letter/editorial) | | Kα), Al2O3 (Al Kα), MgO (Mg Kα), TiO2 (Ti Kα), hematite (Fe Kα), rhodonite (Mn Kα), chromite (Cr Kα),...ferric iron concentrations corresponding to a low hematite mole fraction (X hem 0.002–0.015). The highest...of end members rhomboedral oxide cubic oxide Hematite Geikielite Pyrophanite Galaxite Ulvöspinel Hercynite...facies (with mineral assemblage magnetite, martite, hematite and quartz), b) silicate facies without magnetite...with uncertain origin should be classified as the Itakpe Hill type (Mücke 2003). Low bulk Ca contents expressed |  | | Book | | Mauritania Mauritius Morocco Mozambique Namibia Niger Nigeria Reunion (France) Rwanda São Thomé & Príncipe Senegal... Guinea, Guinea-Bissau, Ivory Coast, Liberia, Nigeria, Rwanda, São Tomé and Principe, Sierra Leone, Somalia...have alongstrike facies variations from chert-hematite/magnetite associations into carbonates and sulphides...extracted from the Ouenza Mine in the east of the country, where the hematite ore is ranging from 53-60%...mining operations are still artisanal. The El Abed Mine near the AlgerianMoroccan border has yielded a production |  | | Book (edition) | | Linopolis, Brazil, H Page 13: Gold, 35 mm.Eagle's est Mine, California, G Publi!>hed by Grdllit.u.o. Stefanikova43...Rice, Dolores co., both Colorado, at the Questa mine, Taos co., New 1994. Abernathyite K2[(UOJ 2l(AsO_J2]•6HzO...Harding Co .. South Dakota. and at the Fuemrole No2 mine, Emery co .. Utah. Also at Menzenschwand Scbwarzwald...mainly in crystals to 5 cm at the Himmelsftirst mine, Freiberg, both Saxony, Germany. In the subtropical...rocks and chromite deposits, e.g. at the Soridag mine, Guleman dist., Elazig vilayet, Turkey. In dark |  | | Report (issue) | | 113 Namibia . . . . . . . . . . . . . . . . 119 Nigeria . . . . . . . . . . . . . . . . 129 Senegal, The...of diversified experience in mineral exploration, mine design, development, and operations, as well as...diamonds in Angola, petroleum in the Congo and Nigeria, gold in Ghana, bauxite in Guinea, uranium in ...titanium, uranium, vanadium, vermiculite, and zircon. Nigeria and Libya were the largest producers of crude petroleum...billion, followed by Algeria at $42 billion and Nigeria at $35 billion. All tons are metric in this report |  | | Journal (volume) | | Mexico. Eight-sided crystals from the Traversella mine, Piedmont, Italy. .&. crystals. It can also be...of the main oxides on the Earth 's surface and hematite is one of the most widespread minerals in the...materials, such as plants, A group of crystals: hematite ...available. The main source was once the Kongsberg Mine in Norway, but this closed in 1956. Man has, however...Clear crystals of anglesite on galena found in a mine near Cagliari, Sardinia. ► Anglesite crystals on |  | | Book | | abundant in arsenopyriterich samples from Wongabah Mine, characteristically forming aggregates of fibrous...(1986) of a fresh euhedral crystal from the Kaneuchi Mine, Kyoto Prefecture, shows only slight compositional...paragenesis. Microscopic observations (from the Faraday Mine) show the structural interrelationship between uraninite...and Ririwai Young granitic complexes of Northern Nigeria. These complexes are associated with Sn-Nb mineralization...Anorogenic magmatic granitic complex, northern Nigeria. According to Imeokparia (1985), the mineralization |  | | Report (issue) | | highest-lying diamond pipe. Commissioning Letseng mine at 10 500 feet during the last two years has called...Whatever you're mining, wherever you're mining, mine it on Bridgestones Bridgestones — for all the variables...Operating conditions differ enormously from mine to mine. Not only are there variations in the kind of...Whatever you’re mining, wherever you’re mining, mine it on Bridgestones. iaaseinn Money — BRIDGE STONE...Togo New Zealand Trinidad and Nicaragua Niger Nigeria Tobago Tunisia Turkey Upper Volta United States |  | | Book | | 447 467 491 Company Index 503 Tables: World Mine Production of Gold, Silver and Base Metals 5A2...Mining OFFICES: 5011 Meadowood Way Paradise Peak Mine Suite 300 (100% FMC Gold) * Sales Reno, Nevada...Elko, Nevada (303) 292-7500 Royal Mountain King Mine (100% FMC Gold) Copperopolis, California Beartrack...because Escondida, the world's third-largest copper mine, high in the mountains of Chile's Atacama desert...underground and opencast mining, oil and gas mining ® mine construction, development, modernization ® complete |
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