 | | Journal (article/letter/editorial) | | indicates that iron-formations are enriched in magnetite, martite and hematite rarely goethite and SiO2...comprising the magnetite and hematite subfacies. In the magnetite-free silicate facies, the magnetite – silicate...first Fe – oxide occurring in iron-formations is magnetite in the form of porphyroblasts, whereas hematite...formation of martite (= pseudomorphic oxidation of magnetite) and its subsequent recrystallization. Goethite...which originated either from the replacement of magnetite (not of hematite) or from Fe-rich descending solutions |  | | Journal (article/letter/editorial) | | Abuja, Nigeria; ** Department of Geology and Mining, Nasarawa State University, Keffi, Nigeria; ***Department...Sciences, Federal University of Petroleum, Effrun, Nigeria. Email: usbamalli@hotmail.com, alimoumouni2005@yahoo...2011. ABSTRACT The metallic mineral resources of Nigeria have not been fully appraised due to lack of sufficient...and documented. The metallic minerals found in Nigeria include iron ore (with over 3 billion metric tones)...Minerals, Technology, Nigeria 1. Introduction It has been proven that Nigeria is endowed with a lot |  | | 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...microscopy. Itakpe iron ore is hematite-rich, this mineral being intergrown with magnetite, and silica...goethite and magnetite, with alumina, silica and phosphorus as major impurities. Itakpe is typical of |  | | Journal (article/letter/editorial) | | for an Eburnean orogenic cycle in south-central Nigeria M. CAEN-VACHETrE Universit6 de Clermont-Ferrand...Faculty of Physical Sciences, University of Nigeria, Nsukka, Nigeria (Received for publication 16 January...oldest basement complex exposed in south-central Nigeria. They are metasediments derived from pelites, semipelites...INTRODUCTION THE CRYSTALLINEbasement complex of Nigeria is a Pan-African (600 _+ 150 Ma) mobile belt lying...metamorphic rocks with polycyclic deformation in Nigeria often yield a Pan-African isotopic age. It was |  | | Journal (article/letter/editorial) | | Austria The Kakun Igneous Cumulate Magnetite Deposit, SW Nigeria A. E. Annor ~ and A. Mficke 2 1Department...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...The Kakun deposit consists of titaniferous magnetite concentrated at the base of an amphibolite sheet...magmatische Cumulat-Ma#netit Lagerstfttte yon Kakun, SW Nigeria Es werden feldgeologische und mineralogische Informationen |  | | 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) | | Britain A new ore prospect in Kakun, Southwestern Nigeria - preliminary geological and magnetic studies A...llorin, Nigeria **I)eparmaent of Physics, University of Ilorin, P.M.B. 1515,Ilorin, Nigeria ***GeologicalSurvey...Department, Funtua, Nigeria ****Physics Department, Ahmandu Bello University, Zaria Nigeria *****Institute...segment of the Pre.cambrian basement complex of Nigeria. The ore outcrops at a point on the Westerly limb...o m p l e x of Nigeria (Fig. 1 i n s e t A) h a v e b e e n r e p o r t e d from Itakpe, A J a b a n o |  | | Journal (article/letter/editorial) | | Department of Geology, University of Ibadan, Ibadan/Nigeria. Band 69, Heft 2, 1980,Seite 411--428 411 Aufs~itze...ceintures orog6niques, tandis que les quartzites ~ magnetite et h~matite, de qualit~ m~diocre comme mineral...quartzo-feldspathic gneisses, extensive marie grannlites, magnetite quartzites and tale-silicate gneisses associated...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 |  | | Journal (article/letter/editorial) | | DOI: 10.3190/jgeosci.016 Original paper The magnetite mineralizations of the Desná Group in the Silesicum...Corresponding author Investigated were occurrences of magnetite-rich rocks (five of which are associated with...mineral (amphibole, biotite, garnet, chlorite, magnetite, ilmenite, carbonate, feldspar and apatite) analyses...This presumably led to progressive extraction of magnetite from the melt and its enrichment due to gravitational... apophyses, mainly composed of amphibole and magnetite, intruded in the gneisses of the Desná Group in |  | 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 |  | | Journal (article/letter/editorial) | | after the processing of iron minerals from Anshan magnetite quartzite, because iron recovery or reuse of these...Figure 1, and included quartz, hematite, and magnetite. After analyzing the iron phases, approximately...92 wt % of the total iron was in the form of magnetite or hematite (Table 2), whereas Minerals 2019...92 wt % of the total iron was in the form of magnetite or hematite (Table 2), whereas 37.31 wt % of the...0.34 0.13 0.06 0.10 0.03 P 0.03 1-Quartz 2-Magnetite 3-Hematite 4-Chlorite 5- Hornblende 1 54 Na |  | | Journal (article/letter/editorial) | | Sludge Flocculation Process-Examples from Omarska Mine Ljiljana Tankosić 1, *, Pavle Tančić 2 1 2 3...goethite and quartz; less clay minerals; and minor magnetite, hematite, clinochlore and todorokite. They have...Prijedor and Banja Luka [1,2]. Iron ore from Omarska mine was previously assigned as limonite ore in association...2018, 8, 119 2 of 19 contents of hematite, magnetite, feldspars, amphiboles, chloritoid, etc. Clay...19% to 54.71%. Processing of ore in the Omarska mine is carried out by the following methods: washing |  | 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) | | together with the mineral assemblage of almandine + magnetite + grunerite + ilmenite + quartz + apatite + allanite...characterized as Fe-rich grunerite–almandine, or magnetite–grunerite–almandine gneisses with a low Ca content...characteristically high Fe content is bound to magnetite, ilmenite, almandine and grunerite. High P and...images are as follows: garnet (30–35 vol. %), magnetite (20–25 vol. %), amphibole (15–20 vol. %), il184...gneisses. Ore minerals like magnetite and ilmenite are abundant. Magnetite (Fig. 2a–b) forms either isometric |  | | 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...alongstrike facies variations from chert-hematite/magnetite associations into carbonates and sulphides. Typical...consists of a range of aluminous metapelites, banded magnetite quartzites, leptynites and marbles commonly associated...Algeriaʼs iron ore output was extracted from the Ouenza Mine in the east of the country, where the hematite ore |  | | Book | | process. Recently, Vgenopoulos (1960) has described magnetite, rutile and ilmenite in quartz veins as being...this is not a decoloration margin but actually magnetite is formed as the result of a chromospinel reacting...earliest minerals to form being cited first: 1. Magnetite, ilmenite, chromite, haematite. 2. Cassiterite...crystallize, forming melts in nature are the oxides, magnetite, rutile, ilmenite and haematite and these minerals...olivine gabbro; 4. Anorthosite with ilmenite magnetite layers; 5. Quartz or granophyric bearing augite |  | | 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 |  | | 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 |  | | Journal (volume) | | Mexico. Eight-sided crystals from the Traversella mine, Piedmont, Italy. .&. crystals. It can also be...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...finest autunite crystals come from the Daybreak Mine, near Spokane in Washington State. In addition,...Mountains of Russia , in Mexico, Sri Lanka and Nigeria. There are colourless or pink crystals in rocks |  | | 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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