 | | Journal (article/letter/editorial) | | at occurrence scale. For example, in the Azegour skarn (Morocco) the δ98MoNIST varies from -0.60 to 0.42‰...transition metals such as Fe, Cu, and Zn (Zhu et al., 2002). Moisotope applications were mainly developed...in oceans MA (Barling et al., 2001; Siebert et al., 2003; Arnold et al., 2004), and for investigating...Markl et al., 2006; TE Borrok et al., 2008; Mathur et al. 2013; Mo isotopes: Neubert et al., 2011; Chappaz...Chappaz et al., 2012; Lane CE P et al., 2013). Molybdenum is used for alloying steel to increase strength |  | | Book | | convert, refine and treat whatever you want to mine. From the initial evaluation and planning to the...Lebanon 29 31 8 Libya 32 35 9 10 Mauritania Morocco 11 12 Saudi Arabia Somalia 13. Sudan 9 36...spelling has been used: Abu instead of Abou, Bou Al instead of El Gabal instead of Jebel, Gebel, Djebel...Dhahab; Hofrat An Nahas has been changed to Hofrat Al Nahas, etc. MINERAL RESOURCES OF THE ARAB COUNTRIES...Solomon's mines are nothing but an ancient copper mine exploited by the ancient Egyptians. A temple dedicated |  | | Report (issue) | | and recommendations for the cobalt mission to Morocco sponsored by The Trade and Development Program...and Development Program and the Government of Morocco This report is preliminary and has not been reviewed....................................... 18 SIROUA REGION COBALT OCCURRENCES ..............................ILLUSTRATIONS Figure 1. Index map of areas visited showing Morocco.................. 2a 2. Generalized setting of...AND RECOMMENDATIONS FOR THE COBALT MISSION TO MOROCCO SPONSORED BY THE TRADE AND DEVELOPMENT PROGRAM |  | | Journal (article/letter/editorial) | | (CaMoO,), is the molybdenum analogue of scheelite. Tungsten commonly substitutes for molybdenum in powellite...and variable amounts of tungsten (Hurlbut 1982). According to Hurlbut, tungsten is concentrated in yellow-brown...accessory mineral in contact-metamorphic or skarn-type tungsten deposits, often as a pseudomorphous replacement...Transbaikalia, and Russia; Turkey; Azegour, Morocco; and the better known tungsten districts of the United States...White Pine districts, Nevada, and the Pine Creek mine of the Bishop district, Inyo County, California |  | | Journal (article/letter/editorial) | | study of the molybdenum, tungsten, and copper deposits of Azegour in Morocco. On leaving the Ecole des...St. Etienne, he joined the GeologicalService of Morocco where he occupied the post of head of the service...excursion into the Moroccan South. During his time in Morocco he was also Professor of Mineralogy at the Ecole...Ecole des Mines in Rabat. His love of Morocco, which he consideredas his second homeland, led him to undertake...gatheredin an exhaustive work on the Mineralogy of Morocco, of which the first volume is shortly to be published |  | | Journal (article/letter/editorial) | | geographicalareas(e.g.Marmadov, 1965;Vorma et al., 1966;Khurshudyan et al., 1969), but may give a general idea...chalcopyrite (Wright, 1915). 2Hr U.S.N.M.96611\ Santa Niio Mine, Patagonia Mts., 2Ht U.S.N.M. 9749U Santa Cruz Co...Chalcopyrite is found in massive ore (Kirkemo et al.. 1965,pp. 14-16). U.S.N.M. 97990 Mojave Co., Arizona...about this specimen Harvardunnumbered Kenawyer Mine, King's River Catryon, Fresno Co., Calif. 2Ht ...moll'bdenite are known from this region. Tbis specimen is probabiy from the Alpine Mine, south of Lake Tahoe, where |  | | Journal (article/letter/editorial) | | signatures (Brennecka et al., 2010; Keegan et al., 2008; Uvarova et al., 2014; Wallenius et al., 2006), radiometric...methods (Eppich et al., 2013; Morgenstern et al., 2002; Pointurier et al., 2013; Varga et al., 2015), oxygen...(Fayek et al., 2011a, b), lead and strontium isotopes (Keegan et al., 2008; Švedkauskaitė-LeGore et al., 2007)...2007), sulphur isotopes (Han et al., 2013), anions (Keegan et al., 2012), as well as rare earth elements...elements (Fryer and Taylor, 1987; Mercadier et al., 2011; Varga et al., 2010). Yet, many caveats in nuclear forensics |  | | Journal (article/letter/editorial) | | sulfide ore in the Western Copper area, Morenci mine, Arizona—Benjamin N. Schumer, Ralph J. Stegen, Mark...Konstantin D. Litasov Direct dating of hydrothermal tungsten mineralization using in situ wolframite U-Pb chronology...granitoids in the Duobaoshan ore field, Heilongjiang Province, northeast China— Chao Zhao, Ke-Zhang Qin, Guo-Xue...significance of multistage granites in Shimensi tungsten polymetallic deposit, Dahutang giant ore field...Re-Os) and genesis of the Mo-W Azegour skarn deposit (High-Atlas, Morocco)—Éric Marcoux, Noémie Breillat |  | | Report (volume) | | industries. Fluorspar veins are worked in Egypt, Morocco, and South Africa, but manto fluorspar deposits...much more productive in South Africa, Kenya, and Morocco. Pipelike bodies of fluorspar have been worked...carbonatites are reported from Angola, Kenya, Morocco, Mozambique, Namibia, South Africa, Tanzania, and...of our African imports in 1977) and in Kenya, Morocco, and Tunisia. From 1975 through 1977 imports of...with major fault zones in the Atlas Mountains of Morocco and Tunisia. As shown in table 1, all types of |  | | Book | | accompañan han sido preparadas con objeto de auxiliar al geólogo economista en los estudios de depósitos minerales...material impreso es disponible con objeto de permitir al estudiante de depósitos de mineral, obtener un claro...grupo de notas debe servir para presentar al estudiante, el grupo al cual el deposito pertence asi como también...deposits by continents and countries is as follows: Morocco 3 Nigeria 1 Rhodesia 4 South Africa 20 South West...16802 30 June 1975 AFRICA MOROCCO AZEGOVR Late Paleozoic Molybdenum^ Tungsten, Copper, Lead, Zinc Hypothermal-2 |  | | Journal (issue) | | member, is a less s table and rare silicate miner al in which all the magnesium has been replaced by ferrous...enstatite from the Harz Mountains in the Eitel region of Germany. F A C T Enstatite may occur in all...mineral species in 1 797 and named a�er Aragon, the region of Spain in which it was first identified. • ...(Australia); Con Mine, Yellowknife, Northern Territories and Quebec (Canada); Azegour (Morocco); Raade (Norway);...• G R O U N D W O R K • ON T E AR I 73 E AL TRAI L: A • MINERAL RESOURCES Argentina is extremely |  | | Journal (article/letter/editorial) | | Molybdenum Selected References TUNGSTEN General Information Genetic Types of Tungsten-Ore Deposits, Metallogenic...Metallogenic Provinces and Epochs Description of Tungsten Deposits The scheelite deposits in skarns Deposits...and greisens Generalizations and Indications of Tungsten Selected References 63 63 64 65 67 68 68 68 69...References TUNGSTEN 83 84 85 86 87 88 88 89 91 97 98 99 General Information Genetic Types of Tungsten-Ore...Metallogenic Provinces and Epochs Description of Tungsten Deposits The scheelite deposits in slcarns Deposits |  | | Book | | of Earth Sciences Mohammed Ist University Oujda Morocco ISSN 2365-0559 Mineral Resource Reviews ISBN 978-3-319-31731-1...data on diverse types of metallic deposits in Morocco, Algeria, Tunisia, Mali, Mauritania, Egypt, Sudan...the setting and origin of major deposits in the region, together with information on tonnages and grades...epithermal gold-silver, (13) skarn and replacement tungsten, tin, and/or base-metals, (14) residual manganese...polymetallic tungsten-gold and lead-zinc-silver deposits of the Tighza district of Morocco, proposing links |  | | Journal (article/letter/editorial) | | Contaminant geochemistry and migration in three different mine sites in Finland – Comparison of anthropogenic and...geochemistry and transport in soil at three different mine sites in Finland: Suurikuusikko, Siilinjärvi and...harmful elements in mine wastes and waters must be considered in risk assessment of mine sites. When evaluating...the environmental effects of mines. [1] Amend et al. (2011) GCA 75, 5736 - 5748. DOI:10.1180/minmag...crystalline microbial !-MnO2 described by Villalobos et al. [1]. However, the origin of the birnessite in Priddy |  | | Report (issue) | | , 1953, Beryllium deposits of the Mount Antero region, Chaffee County, Colorado: U.S. Geological Survey...Bulletin *XID Anderson, A. L.» 1948, Tungsten mineralization at the Ima mine* Blue Wing district, Lemhi County...Tertiary igneous rocks, eastern Basin and Range Province, western Utah, eastern Nevada, and vicinity, U...mineral resources of a portion of the Silver City region, Owyhee County, Idaho: Idaho Bureau of tfines and...uranium mineralization at the tfidniaht uranium mine, Stevens County, Washington: Cheney, Eastern Washington |  | | Report (issue) | | Poland Spain Union of Soviet Socialist Republics Morocco Republic of South Africa Republic of the Sudan...wollastonite zone, Lappeenranta ·. IV 1. Fox Knoll Mine, Willsboro, New York 2. Wollastonite processing...conditions of high humidity such as obtain in the mine (see Plate IV, fig. 1). It is believed that underground...the processing plant, just over one mile from the mine, is completely mechanised throughout (see Plate...1 t GARNET AND DIOPSIDE \ll ATTRITION MILL '1, Al R SEP ARA TO RS Fig. J. WOLLASTONITE WOLLASTONITE |  | | Book | | the microscope can be used. For routine work, a tungsten filament lamp operated by a rheostat is adequate...within it. Samples which have been collected in a mine or open pit exhibit more abundant reflections as...1^650 Neutral glass (NG1) Silicon carbide (SiC) Tungsten carbide (WC) 4.4 21.9 45.5 4.3 20.9 44.5 4...the sample from an external light source, e.g. a tungsten light bulb, excluding both polars. Normally a...minerals. 5.2 DESCRIPTIVE TEXTURES 5.2.1 5.2.1(a) 5.2.1(al) SINGLE GRAINS Internal Zoning Etching may or may |  | | Book | | reasons for the approach taken Mineral deposit or mine? A genetic model as the basis for exploration The...many geologists who have given their time during mine visits and responded to our queries. We have benefited...Decline Doline A downward inclined tunnel into a mine or potential ore body. A funnel-shaped depression...shaft excavated upwards for connecting levels in a mine or ore body. Ripping The removal of overburden...of the problems which face the mine geologist. The function of the mine geologist varies considerably |  | | Book | | 1-Ioggar . . . . . . Eglab, Yetti and Reguibat. Morocco . . . . . . . . . Niauritania and Spanish Sahara... Sketch 1nap of Rio de Oro-Reguibat-Dra-South Morocco. T,vo sections through the Dutch coal mining district...Western Desert of Egypt, Libya, Algeria and South Morocco. The data on the Western Desert, Libya and South...age determinations exist of the Pre-Cambrian in Morocco as a whole. Here, too, great variations in age...determinations is programmed. W. R. Muelberger et al. reported on this in Vol. 51/12 of the A. A. P. G |  | | Book | | were emplaced between 2000 and 1700 Ma (Vachette et al. 1975). These intrusions mark the end of the crustal...studied in Mauritania Adrar (Trompette 1973; Bronner et al. 1980). However, the borders of the basin were tectonized...the Da- homeyide orogen (Affaton 1975; Affaton et al. 1980). Finally, the Bove basin in Guinea (Villeneuve...postulated in South America (Brazilian belt, Lesquer et al. 1984). The Pharusian-Dahomeyide orogens are interpreted...oceanic closure and collision around 600 Ma (Black et al. 1979) between the West African passive margin and |  | | Journal (issue) | | crystals on quartz from an abandoned pyrophyllite mine near Snow Camp, Alamance County, North Carolina...it. The efforts of clubs to promote safety during mine and quarry visits should be stressed. As a good...assemble a suite of properly labelled specimens for the mine or quarry office. Many of us know of localities...col lection of these fine stibnites from this new mine near Felsobanya. The xls on these are much larger...classified according to the temperature at which tungsten would emit an essen tially identical light. Many |  | | Journal (issue) | | in each caption: Tămaș-Bădescu (2010), Ciobanu et al. (2004) and Wollmann (2010). 1. Brief History The...belonged to mining companies based in the Brad region. Today, it is owned by S.C. “MINVEST” S.A. Deva...more than 2000 year old mining activity in the region. 2. Collections and exhibitions The expositional...(about 80% of the specimens originate in the Brad region, especially Musariu and Brădişor deposits). The...metal gold pans, as well as a replica of the famous mine carriage which is considered to be the oldest of |  | | Journal (article/letter/editorial) | | Romer / Gondwana Research 24 (2013) 298–329 299 Province. The Permian convergence of Gondwana and Laurussia...evolution of the Central European Extensional Province (CEEP) (300–250 Ma) . . 4. Discussion . . . ....and parts of Morocco and Algeria to the north of the West-African Craton (Michard et al., 2010). In addition...(Stampfli et al., 2002). Parts of Anatolia (Okay et al., 2010) and the Caucasus (Mayringer et al., 2011) also...(e.g. Franke, 1989, 2000; Matte, 1991; Oncken et al., 1999). However, due to significant differences with |  | | Book (edition) | | 578; Nickel, 586; Chromium, 591; Molybdenum, 595; Tungsten, 598; Vanadium, 603; Cobalt, 606 15. Minor Metals...maintain ore reserves, and in the proper location of mine workings to avoid caving ground. In the future he...descriptions. He also tells us that Hannibal had a silver mine, named the Baebulo, in southern Spain, in a mountain...Aluminum Antimony Bismuth Cobalt Mercury Molybdenum Tungsten Ore Mineral Native gold Calaverite Sylvanite...amount of gold. For example, the Alaska Juneau gold mine mined with profit ores that contained only 0.00016 |  | | Journal (issue) | | JJ SYD)! te up in a wooden pail. Missouri lead mine about 1890. —_—— ; eee if atOT ace | | Horse...Rear-Dump Euclids are standard equipment on hundreds of mine, quarry, and construction jobs. For moving rock...tomorrows domand wo esi cnet scale THE Offices. MINE DEVELOPMENT & DIRECTORY at lt DORR Ass NUMBER...drills combined CP Diamond Drills in service. — one mine alone having over a hundred Cuicaco PNeumaric TOOL...Bilbao... ITALY: Forni Stein, Genoa. MOORE WHEN MINE YOU RAPID MELT... DEVELOPMENT & DIRECTORY |
|
