| | Journal (article/letter/editorial) | A weathered skarn-type mineralization in Ivory Coast: The Ity gold deposit Didier Béziat a,⁎, Luc Siebenaller...Birimian Ivory Coast Gold mineralization Saprolitic zone Skarn a b s t r a c t Although the Ity deposit...operating mine in Ivory Coast, very few studies exist on this deposit. It is situated in Western Ivory Coast...Abidjan. The mine is presently operated and mined by SMI (Société des mines d'Ity — Society of Ity Mines),...in the Ity area form a cluster of mining operations of various sizes (Flotouo, Zia, Mont Ity), hosted | | | Journal (issue) | (Mon-Fri, 9am-5pm). Or write to: Back Issues Department, Treasures of the Eanh, Orbis Publishing Ltd...Chrome Diopside, Enstatite, Pearl Aragonite, Molybdenite DISCOVERY Organic Substances About the Consultant...477 7391 for details, or write to: Back Issues Department, Republican News Agency, PO Box 16034, Doornfontein...diopside. TYPE LOCALITY The classic source (type local ity) of this sub-species is in southern Steiermark (Austria)...and freshwater clams produce precious gem qual ity pearls. Pearls from other molluscs tend to be red | | | Journal (article/letter/editorial) | wishes to ob tain specimens from this famous local ity. Magnet Cove lies in southwestcentral Arkansas about...being conducted to determine the extent of a molybdenite deposit. Specimens of that mineral with pyrite...collectors. Many minerals reported from this local ity are present only in microscopic form or are materials...Sedimentary Rocks 1. 2. 3. 4. Calcite Hill Titanium Mine Molybdenite Prospect Brookite Prospect MAGNET 5. 6....E M B E R 1976 in the vicinity of the titanium mine. Specimens showing well developed crystal faces | | Le Mignot, Elodie, Reisberg, Laurie, André-Mayer, Anne-Sylvie, Bourassa, Yan, Fontaine, Arnaud, Miller, John (2017) Re-Os Geochronological Evidence for Multiple Paleoproterozoic Gold Events at the Scale of the West African Craton. Economic Geology, 112 (1) 145-168 doi:10.2113/econgeo.112.1.145 | Journal (article/letter/editorial) | SW Archean Paleoproterozoic Ity AS Bonikro Greenstones IVORY COAST Granitoids Detrital sediments...al. (2002) Regional Goren greenstone belt, Ivory Coast Ghana Damang, Ghana Obuasi-Bogoso, Burkina...90 1 289 000 mN + + + 280 291 71 S + Ivory Coast 00 738 500 mE TOGO 0° 740 000 mE GHANA...generation, which is the dominant vein type at the mine scale, 153 is represented by folded and boudinaged...Volcaniclastic rocks Basalts or Andesites Cape Coast Micaschists (> 3200 m) Volcaniclastic rocks Gabbros | | | Journal (article/letter/editorial) | Jingjuan Chang, and Bo Peng 257 Zircon U-Pb and molybdenite Re-Os geochronology of coppermolybdenum deposits...Dung Pham, and Thi Huong Ngo 69 Zircon U-Pb, molybdenite Re-Os and muscovite Ar-Ar isotopic dating of...Fang-Fang Hu, Wen-Gang Xu, and Bo-Jie Wen 252 Molybdenite Re-Os and U-Pb zircon dating and genesis of the...A weathered skarn-type mineralization in Ivory Coast: The Ity gold deposit—Didier Béziat, Luc Siebenaller...structure and lode gold system at the Central Manitoba mine trend, Rice Lake greenstone belt, Archean Superior | | | Journal (article/letter/editorial) | anhydrite-molybdenite (AM) veins of quartz + K-feldspar+ anhydrite + pyrite + biotite + molybdenite,(2) quartz-molybdenite...quartz-molybdenite (QM)veinswithquartz+ molybdenite + pyrite,(3) anhydrite-chalcopyrite (AC) veins containingquartz...liquid-richfluid inclusionsin vein quartz showsthat the molybdenite-bearing anhydriteand quartz veinsformed at 360ø...Slickensides observed un- dergroundin the C.O.D. mine indicatethat the latestepisodeof movementwasobliqueor...districtandtrendsN 30ø W (Fig. 1). Anhydrite-molybdenite(AM) veins Foliationsandamphibolitelayerswithin | | | Journal (article/letter/editorial) | ELECTRICAL RESISTIVITY OF MINERALS* M.qnra Tnlrns, Department of Metallurgy, Massachusetts Institute oJ Technology...L RESISTIV ITY OF MINERALS Trs-n l-Conti.nuetJ Mater'ial ARSENOPYRITE FeAsS MOLYBDENITE MoSs 15 specimens...variations has been attributed to impurities. In molybdenite the difference may have been due to the presenceof...Frc. 1. Convenient resistivity apparatus ogy Department of the Massachusetts Institute of Technology...031 0.016 0.007 0 .1 3 ELECTRICAL 543 RESISTIV ITY OF MINERALS Tl^nr,n2-Continued. Mineral Bornite | | | Report (issue) | ------- - - - - � A report prepared for the Department of Industry I I I I I I I I I I I I I I I I...Institute of Geological Sciences on behalf of the Department of Industry. The information contained .herein...1981 London 1981 A report prepared for the Department of Industry I I I I I I I I I I I I I I I...investigations around Garras Mine, near Truro. Cornwall 3 4 Molybdenite mineralisation in Precambrian...associated with the Skiddaw Granite near Carrock Mine, Cumbria 8 Investigation of stratiform sulphide | | | Journal (article/letter/editorial) | formerly Assistant professor of Geo- RADIOACTIV ITY AND MINERAL DEPOSITS 817 had previously found...localization of the radioactive elements RADIOACTIV ITY AND M I NERAL DEPOSITS 819 in minor accessoryminerals...porphry collected by E. L. E]ru.rr from the Hollinger Mine averaged 0.47. The darker-colored varieties tended...activities were obtained for minerals from the Franklin mine, and the average for Franklin minerals was somewhat...being approximately: sphalerite and galena, Eagle Mine-0.45 (3 specimens);sphaleriteand pyrite-4.8 (1); | | | Report (issue) | I • Great Britain •• • Ireland ••• ••• Gold Coast Colony ... Rhodesia ••• ••• Union of South Africa...nature. The known molybdenum mine1"als include molybdenite, wulfenite, and molybdite, only the first two...bend readily altho11gh they are not elastic Molybdenite is soft, its hardness being only from 1 to I·5...pape1~ and a. greenisl1 str~eak on porcelain. Molybdenite ma,y be easily distinguished £1·om graphite,...given off when it is heated in an ope,n tube_ Molybdenite is decomposed by nitric acid, leaving a white | | | Journal (article/letter/editorial) | Arizona Molybdenite Crystals Dave Shannon of Mesa now has the lease on a mine with molybdenite crystals...minium crystals. Connecticut Thomaston Figure 1: Molybdenite, Cleator, Yavapai County, Arizona. California... New Jersey Warren Cumrnings of the New Jersey Department of Transportation Bureau of Materials, 1600 N...and Richard Stuck, geologists at the New Jersey Department of Transportation, on April 4, 1989. The fluorite...marble to where it plunges beneath the unconform ity. The west boundary north of this point is defined | | | Journal (article/letter/editorial) | Mali, Senegal, Burkina Faso, Cote d’Ivoire (or Ivory Coast), and Guinea. Yielding about 200 t Au per year...2017; Faleme district: Schwartz and Melcher, 2004; Ity: Beziat et al., 2016) and porphyry (Gaoua: Le Mignot...rocks are scattered throughout belts in the Ivory Coast, in the northwestern corner of Niger, and in...Mali Fig. 1B Taoudeni basin Liberia Liberia 5 Ity West Africa 0° Damang Wassa Accra Abidjan Prestea...Congo Algeria Bogoso Afema 4 Gaoua Fig. 1A Ivory Coast Samapleu 1 5°W Man-Leo Shield Ndablama | | Titley, S., Aiken, D., Barter, C., Jansen, L., West, R. (1986, March) Frontiers in geology and ore deposits of Arizona and the southwest, Field Trip Guidebook 9 - Geology and ore deposits of the Pima Mining District. Guidebook. Arizona Geological Society | Report (issue) | Morris of the University of Arizona Conference Department for the transportation, lodging, and meal arrangements...possible, bring hard hat and safety glasses for mine r�UI�II�K� IN btULUbT 9. Pima Mining District...DISTRICT, PIMA COUNTY, ARIZONA Spencer R. Titley Department of Geosciences University of Arizona Tucson,...when mining of low-grade ores commenced at the Pima mine. Since then, discoveries of additional bodies of...the Mission complex and from Sierrita-Esperanza mine. REFERENCES The geology of the district has been | | | Journal (article/letter/editorial) | GEOCHEMISTRY Rhenium Distribution in Deformed Molybdenite: Evidence from the Data of Microprobe Scanning...1134/S1028334X14020111 Study of the behavior of rhenium in molybdenite during its deformation and the influence of lowtem...mation of copper–porphyry objects, and the possibil ity of Re–Os dating. However, study of the distribu...distribu tion of low rhenium concentration in molybdenite (0.05–1.0 wt %) by the method of microprobe scan ning...example of molybdenite from several copper–por phyry deposits of the Urals [2]. Study of molybdenite from | | | Report (issue) | UNITED STATES DEPARTMENT OF THE INTERIOR PROJECT REPORT IR-LI-32 Liberian Investigations BIBLIOGRAPHY...Genesis and hardening of laterite in soils: U. S. Department Agriculture Tech. Bull. 1232, 9'G p. ** . Alldridge...petroliferes de la Basse C6te d'lvoire et de la Gold Coast: French 'West Africa Service Minier Bull., v. 2...d'lvoire et de la Haute Volta xneridionale: Ivory Coast, Direction Geologic et Prosp. miniere Bull.,...massif du Kakoulima (Republique de Guin£e): Ivory Coast Service de Geologie et Prpspectfon Minier Notes | | | Report (issue) | publication may be obtained from: North Carolina Department of Natural Resources and Community Development...for mineral specimens are in working mines and old mine dumps. highway cuts often contain some excellent...have the permission of the property owner or the mine operator to enter the locality and remove specimens...beginning in the finding of rolled crystals in gold mine washings, some of which were of gem quality. a zircon...undertaken by C. E. Jenks in 1871, when he opened a mine for gem corundum at Corundum Hill, Macon County | | Liu, Zhifei, Zuo, Ling, Xu, Senmin, He, Yaqing, Wang, Chunyi, Wang, Luofeng, Yang, Tao, Wang, Gongwen, Zeng, Linggao, Mou, Nini, Yang, Wangdong (2022) 3D Multi-Parameter Geological Modeling and Knowledge Findings for Mo Oxide Orebodies in the Shangfanggou Porphyry–Skarn Mo (–Fe) Deposit, Henan Province, China. Minerals, 12 (6) 769 doi:10.3390/min12060769 | Journal (article/letter/editorial) | mineralization and oxidation transformation process of molybdenite during the supergene stage. Meanwhile, from macro...analyses indicate the oxidation products of molybdenite are dominated by tungsten–powellite at the supergene...processes from molybdenite to tungsten–powellite are obtained after the precipitation of molybdenite; eventually...the precipitation of molybdenite: (1) During the oxidation process, molybdenite is first oxidized to...molybdite. iations. Keywords: oxidation of molybdenite; ore-forming process; 3D multi-parameter geological | | | Journal (issue) | ............................. 472 CHOATE CHROME MINE. By Peter Z odac ....................................................... 474 PERU'S GREATEST LEAD MINE ···············································...black P-odular masses. It is found at an old cobalt mine, SO miles due north of Middlebury, in central Transvaal...Transvaal, in South Africa. The vein at the mine consists of much decomposed feldspar, green amphibole...southern slope of the hill. Cop- · per Mine H ill, Iron Mine Hill, and Calumet Hill were visited, but | | | Journal (article/letter/editorial) | i t e -rare sulphides (in felsic gneiss) - molybdenite bodies in dolomitized amphibolite - veins of...tourmaline - allanite and pyrrhotite - pyrite molybdenite - Bi telluride native gold - w e a k carbonatization...veinlets with pyrite :1: sphalerite-tou rmaline - molybdenite bodies in altered mica schist disseminated euhedral...close to the gold deposits, the parageneses with molybdenite, scheelite, bismuth minerals and (or) tourmaline...pre-orogenic PP, (French close to FLB Guiana) Montagnes in FLB close to preTortue orogenic PP (French | | | Journal (article/letter/editorial) | epidote, pyrite, sphene, and—in two single areas molybdenite with rare chalcopyrite and stibnite. From north...Some portions of the crystals are of facet qual ity. Besides quartz, a two-inch microcline crystal was...near the campground, contains one-quarter-inch molybdenite crystals as sociated with vuggy pegmatitic aplite...which fol lowed the initial injection. The complex ity of the Pohndorf pegmatite is best il lustrated by...parallel amethyst over growths from the Little Gem Mine in the Toll Mountain area. Bald Mountain This | | | Catalog/List | CLEVELAND OUMC1L ity employer A Geology & Environmental Resources Section Exhibition, Cleveland County...County Libraries and Leisure Department. CASE 1 A range of specimens showing aesthetic crystal associations...growing on a mass of fluorite crystals. BLACKDENE MINE, WEARDALE, DURHAM M 4648 Tetrahedral crystals...with blue grey micro crystals of quartz. GREENSIDE MINE, PATTERDALE, CUMBRIA M 4709 Large cubes of galena...siderite with the odd cube of fluorite BLACKDENE MINE, WEARDALE, DURHAM M 4710 Beautiful association | | | Report (issue) | f, --d • ,·,.� i e'2.. NEW SOUTH WALES. DEPARTMENT OF MINES. GEOLOGICAL SURVEY. E. C. ANDREWS, Government...Cnssiterite 121 II " INDEX II. III.- " " " Molybdenite Wolfrnmite IV.-Minea of the Barrier Ranges...PLATF.S. 1.-Fig . 1. Nath ·e Bismuth-A. E. Cooper's :Mine, Dcep,h1.i,J1. ................. 1 ,, 2. lllock....................... . 3.-Fig. I. ., ,, Cad in. Mine, Broken Hill ......................•......... 4... 5.-Fig. 1. Native Sih-er-Aust. B. �. Consols .:Mine, B�oken Uill ............} 2. ,, after Eml>ohtc-Pro[>net111·y | | | Journal (article/letter/editorial) | TUNGSTEN MINERALIZATION AT THE IMA MINE, BLUE WING DISTRICT, LEMHI COUNTY, IDAHO.* ALFRED L. ANDERSON..... 203 203 204 205 205 206 ABSTRACT. The Ima mine, which has beenone of the leadingproducersof tungsten...distant therefrom. The metal-bearing minerals are molybdenite,pyrite, sphalerite,tetrahedrite, chalcopyrite...pyrite being most abundant. The scheeliteand molybdenite occur in and near the granite. The others have... I AT THE IMA MINE, IDAHO. ! 183 J Index map showing location of the Ima mine, Idaho. blockof | | | Journal (article/letter/editorial) | DrainageSurveyand its Implicationsfor Metallogenesis, Central Coast Mountains, British Columbia G. J. W00DSWORTH Abstract...ntsamplesfrom 3,300 squaremiles of the central Coast Mountainsof British Columbiawere analyzedfor Mo...anomalies. Hypothermal quartz veins of the Surf Point Mine and many of the Mo anomalies on Porcher Island are...Reconnaissancestream sedimentsurveys in the central Coast Mountains are useful both in prospectingfor mas...ectedby the writer in 7,000 squaremiles of the Coast Mountainsof British Columbia (Fig. 1). About two | | | Report (Issue volume) | REPORT 8 Issued by THE GEOLOGICAL SURVEY OF CANADA Department of Mines and Technical Surveys, Ottawa $1.65...are issued by the Surveys and Mapping Branch, Department of Mines and Technical Surveys, Ottawa. The subject...the author wishes to thank Dr. D. D. Hogarth, Department of Geology, University of Ottawa, for providing...3 Where to Look Quarries, mine workings (pits, trenches, etc.), and mine clumps are usually good places...caution. Permission should be sought before entering a mine, quarry or other private property; in active mining |
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