 | | Journal (article/letter/editorial) | | 3749/canmin.1700068 THE VANADIUM-BEARING OXIDE MINERALS OF THE GREEN GIANT VANADIUMGRAPHITE DEPOSIT...DEPOSIT, SOUTHWEST MADAGASCAR VERONICA E. DI CECCO§ AND KIMBERLY T. TAIT Department of Natural History-Mineralogy...Toronto, Ontario, M5H 3L5, Canada ABSTRACT Rare vanadium-rich oxide minerals have been previously identified...described from the Green Giant vanadium-graphite property in southwest Madagascar. The vanadium-rich oxides...oxides include vanadium-bearing rutile (2.88 6 1.75% V2O3, n ÂŒ 18), schreyerite, oxyvanite, and karelianite |  | | Journal (article/letter/editorial) | | ore enclosing (or primary) rocks. We define such manga nese rocks and ores as oreenclosing formations...are divided into epochs and stages (formation of giant and large deposits, some times a series of medium...and pyroxene. The Khoshchevat deposit (Odessa district, Ukraine) is assigned to the marble weathering...ocherousâclayey rock with numerous pyrolusite, psilomelane, manga niferous limestone, and hematite concretions. The...recent weathering profiles of the Lower Proterozoic manga niferous rocks of the Carawine Dolomite Formation: |  | | Book (volume) | | figurent pas dans ceux-ci. En ce qui concerne Madagascar, dâoĂč documents nouveaux, offrant un intĂ©rĂȘt...coloration brun rouge. GISEMENTS ET ASSOCIATIONS Madagascar. â Jâai donnĂ© le nom dâampaugabĂ©ite [C. B. CXLIV...ANrHOPHYLLITE-GĂDRITE (ĂŻ. p. 035; 1 , T. VI, p. 784). â Madagascar. Jâai rencontrĂ© [B. S.M. XXXV. 97. 1912) un...micaschistes mont Bitv). IV, p. 787). â Madagascar. Jâai visitĂ© le gisement dâAmbatoarina, dâoĂč...crocidolites. On y voit associĂ©s du quartz, de la pyrite, de lâalbite et parfois des mouches de galĂšne. |  | | Journal (issue) | | .............................................. GIANT FLIGHTLESS BIRDS .................................that he had unearthed a good specimen of bright green Williamsite. There bad been none in the dumps. W...good enough to cut generâą ous sized translucent green cabochons if you could overlook the tiny black octahedrons...the streams or earlier 2lacial action: of quPer pyrite concretions which we boys argueo over, ~ome claiming..."banner-stones" of red, black, purple, brown and green slate, either of solid colors or banded. Axes, adzes |  | | Journal (article/letter/editorial) | | carbonate ganeseenrichment of the faciesenclosing the manga- (deeperwaterfacies). neseoxideore depositsis discussed...sameway as pyrite formation,producinga higher yet it hasbeendifficultto envisagehow the manga- Mn/Fein... the islandwithoutpre- line by precipitationof pyrite and then glauconite cipitation.Thisdifferenceh...wasrestricted Berner(1981). The formationof a manganese giant 1984).The manganese suchasGrooteEylandt,in whichthe...)marinetransgression quiredsometypeofpowerfulfractionation of manga- oxidesof the North basin are either exposedor at |  | | Book | | a te ri a ls mined and worked for nonmetals, as pyrite is an ore of sulphur. . . . A minera l of sufficient...enrichments of previous deposit.s Some ura nium a nd vanadium General Features, Kinds, and Localization of...to flow. At the Dunkin mine of the Breckenridge district, Colorado, the Dunkin vein , wh ic h formed along...monzonite porphyry, with a sc;i m of qu artz and pyrite in the shale below the gold ore, a nd ox idized...the porphyry above the gold o re, Breckenridge district. Co lorndo. After T . S. Love ring, U. S . C eo |  | | Journal (article/letter/editorial) | | this mining his study his to study the district. course of discovered of minerals which ... to present the a brief setting, Detailed district will explanation and his description be ...the Mountain Y. of Japan mining extensive district, area in manganese that and minerals of hausmannite...tephroite and year, by He concluded manganese manga of the geology are of author 15) in 1953. the...resemble Mountainland. morphosed of minerals district extensively T. Wada, Geology massive they |  | | Journal (article/letter/editorial) | | above elements as well as manganese, strontium, vanadium, rubidium, thorium, nickel, and lanthanum. Chemicalanalysesfor...Nevada. The sampledveins include fluorite, quartz, pyrite, clays, Fro. 1. Locationsof analyzedsamples. and...same as Sample Cu Co Mo Li Pb U HxF exceptthat no pyrite or uraninite is presentin HâąF 300 115 81 41 1268...Tertiary rhyolite (welded tuff), Bullfrog Mining District, Nye County,Nevada. The rhyolite flows are fault...fault brecciatedand gouged. Gummite,autunite,pyrite, and quartzwere identified in the altered breccias |  | | Journal (article/letter/editorial) | | Tectono-Minerogenetic Unitsof the Basement of Madagascar JEAN CHANTRAINE * AND LUIGI RADELLI** Abstract...defined orogen and to some tectonic basementof Madagascar(Besairie, 1966), but ex- zone of each orogen...article the followingnoteswill suffice. Survey of Madagascar who helped in collecting the data The oro#eniescorrespondto... TECTONO-MINEROGENETIC Fig.1 TECTONIC OF THE OF UNITS OF MADAGASCAR 691 MAP BA3EIV!ENT MADAGA3CAR 200kin LEGEND...4DELLI Fig.2 METALLOGENIC MAP OF THE BASEMENT OF MADAGASCAR LEGEND Ă Cu zâą Ni(Cu) 0 100 I i 200 |  | Sidorov, A. A., Filimonova, A. G., Volkov, A. V., Trubkin, N. V., Chugaev, A. V. (2012) Evolutionary historical model of the Dukat silver giant. Doklady Earth Sciences, 444 (2) 696-701 doi:10.1134/s1028334x12060177 | Journal (article/letter/editorial) | | Evolutionary Historical Model of the Dukat Silver Giant Corresponding Member of the RAS A. A. Sidorov, A...relatively selective ore occurrence in different magmas. Giant silver deposits were identified among both Pale...complicated scheme of oregenesis at the Dukat silver giant. The occurrence of highgrade gold in the melanocratic...(Fig. 1). The Omsukchan silver district formed by the Dukat silver giant and its numerous silverâpolymetallic...for instance, under the Western Uzbeki stan ore district and Muruntau deposit [4]. At the formation stage |  | | Journal (article/letter/editorial) | | in a relatively small locus of thermal springs (Manga, 1998; Ingebritsen and Mariner, 2010). Such hydrothermal...compiled data (Shmonov et al., 2002, 2003; Saar and Manga, 2004; Stober and Bucher, 2007). 0 Manning & Ingebritsen...of permeability as a relatively static material property that exerts control on fluid flow. However, a...triangles = Cajon Pass, blue circles = Long Valley, green squares = Nevada test site. After Townend and Zoback...and Nakahara, 1999; Heki, 2001, 2003; Saar and Manga, 2004; Christiansen et al., 2005, 2007; Hainzl et |  | | Journal (article/letter/editorial) | | prospect;Bear Canyonmine) ................ Nevada County (Manga-Chromemine; Smith prospect) ............ Amador...recognitionof pyrophanitein the specimens from the Manga-Chromemine. The photographs that appearhere were...the Calaveras formation. Nevada County.--The Manga-Chrome(Duggan) mine lies near the south border of...silicawere largely altered Fxc. 1. Specimen from the Manga-Chrome mine, Nevada County, Calif. Shows successivelayers...Mount Diablo meridian, about 3 miles south of the Manga-Chrome mine. It is accessible by dirt road that |  | | Journal (article/letter/editorial) | | Tanzanian Craton already hosts some world-class to giant gold deposits (referred to as very-large deposits...superterrane boundaries, based on regional to district-scale solid geological maps produced in this study...lithostructural traps for gold deposition in the district. Because orogenic gold deposits develop late towards...(Phillips and Powell, 2010; Table 2). The term district is correctly used to describe a metallogenic region...of Tanzania (see Figs. 2, 3 and 5). Province District Camp Deposit Size Hosting lithostructures | | | Journal (article/letter/editorial) | | goethite and graphite with traces of hematite and pyrite. Hausmannite anhedral grains is present as subhedral...(Fig. 11) and colloform texture. It is replaced by manga nese minerals along grain margins and frac tures...alters to biotite, and oxy-hydroxide and at of manga Fig. 13. Cryptomelane (white) replaces a silicate...manganese ore samples show wide variation in their manga nese and iron contents. Phosphorous content in these...(Mohapatra, 1992); North Kanara and Chiknayakanahalli Green stone belt Karnataka, India (Machigad, 1990; Anantha |  | | Book | | Parting to small, Some minerals have an inherent property known as parting, which is believed by many to...Rhombohedral dolomite crystals (Spain). Bottom left: Pyrite crystal, with notable metallic luster (Island of...a beam and of light. This is an important property constant for any homogeneous trans- is parent... surface. its Some opaque minerals, such as pyrite, have mirrorlike surfaces and reflect most of the... Luster is not an invariable determinative property, as there are no sharp lines dividing the various |  | | Book | | the heart of the then most prolific metal-mining district of Central Europe. He had grown up with a boyâs...legal matters, that he may not take another manâs property and so make trouble for himself, and that he may...potash feld- Volcanic Absence of quartz Dark green to black color Texture flow amphibole. or pyroxenes...speckled Granodiorite Light Grainy Plagioclase Giant nent Large crystals of Pegmatite Light grains...exists for the growth of extremely coarse, even giant textures. Later erosion removes part of the overburden |  | | Journal (article/letter/editorial) | | removalof dissolved iron from the system,primarilyby pyrite precipitation in basinal environments,and on the...origin.This papertreatsin greaterdetailthebehaviorof manga- averagecrustalabundanceof about0.15 percent, andiron...seawater. 2. During anoxicdiagenesis,iron is fixed in pyrite during sulfate-reducing diagenetic reactions under...interfaceare and Pco2are other importantinfluenceson manga- forming today in the Baltic Sea and form a sizable...n(e.g., laminated shallow-marine rhodochrosite-pyrite deposits). This variation treats the contact between | | Plumlee, Geoffrey S., Casadevall, Thomas J., Wibowo, Handoko T., Rosenbauer, Robert J., Johnson, Craig A., Breit, George N., Lowers, Heather, Wolf, Ruth E., Hageman, Philip L., Goldstein, Harland L., Anthony, Michael W., Berry, Cyrus J., Fey, David L., Meeker, Gregory P., Morman, Suzette A. (2008) Preliminary analytical results for a mud sample collected from the LUSI Mud Volcano, Sidoarjo, East Java, Indonesia. Open-File Report 2008-1019. US Geological Survey doi:10.3133/ofr20081019 | Report (issue) | | Mazzini and others, 2007; Davies and others, 2007; Manga, 2007). The Mazzini and others (2007) study favors...organic material, quartz, and feldspars. In addition, pyrite (an iron sulfide), calcite (calcium carbonate)...indicated by the particle size analysis. Clusters of pyrite crystals observed in SEM images (a texture termed...Concentrations of arsenic, aluminum, iron, and vanadium in the mud exceed U.S. Environmental Protection...weight percent. Consistent with the finding that pyrite is present in the mud, the predominant form of |  | | Book | | crystals is described. Take, for example, a crystal of pyrite with a cubic shape, and use it to perform two symmetrical...from Baveno, Piedmont, Italy. Above: A group of pyrite crystals showing a perfect example of cubic symmetry...spinel. Penetrating twins are typical in fluorite, pyrite and orthoclase; polysynthetic twins are typical...clear cleavage planes. Cleavage Cleavage is a property that is easÂŹ ily visible, particularly on pieces...with the symmetry of the crystal itself. This property is well developed in some minerals, such as the |  | | Report (volume) | | prospect.. 446 71. Map of the Sutherland (Thompson) property. ................................... In pocket...pocket 72. Geologic map of part of the Little River district, Clallam County, Washington........... 450 73...other men familiar with the district, particularly Ed Brooks, S. H. Green, and the late Charles Greenlee...51 percent manganese. About a hundred tons of manga- nese silicates have been shipped from other properties...be developed, for 8 chip samples taken at this property across a width of 21 feet of red rock averaged |  | | Book | | to distinguish between constructions like cobalt Pyrite and Cobalt Pentlandite, the laner considered the...[Dendritic Agate] Agato Florida = mixture of Quartz and Pyrite Agata Jaspeada = Quartz [Agate Jasper] Agata Musgosa...Ramdohr and Cevales) inadequately described iron vanadium silicate Almendine = Almandine Almeroite = mixture...A u r u n i t c Alpigyemant, Alpine Diamond .. Pyrite Alquifoux, Alquifoux, Alquifux -= Galena Alshedite...Alumocobaltomelane = mixture of Lithiophorite and other manga nese oxides Alumodeveillite, Alumodeweilith, Alu |  | | Book | | and the preservation of the minerals from the district. The Franklin Museum, located on Mine Hill beside...obtained in this way many years ago, as were the giant rhodonite specimens. Permission for a private individual...more or less, with the appurtenances, late the property of Samuel Potts, seized and taken into execution...Furnace in Hardiston township." The deed to the property acquired by Fowler in 18 I 0, pre served in the...to develop and smelt the ores. His deed to the property is preserved by the Sussex County Historical Society |  | | Journal (article/letter/editorial) | | buffer (Kishima and Sakai, 1984). They also follow a pyrite-pyrrhotite-magnetite (py-po-mt) buffer for S (Crerar...(Padilla-Garza et al., 2004), and 4 in the Indio Muerto District, El Salvador, Chile (Gustafson et al., 2001)....feldspar-biotite-anhydritechalcopyrite-bornite or chalcopyrite-pyrite (Aranacibia and Clark, 1966; Gustafson and Hunt...description of a PMR by any averaging or effective property. Subsequently, 3D (ï - ïš - ï§Â°) or (ï - ïŽ - ï§Â°)...energy, the more dependent on temperature is the property. In a mush, the solid crystalline framework develops |  | | Journal (article/letter/editorial) | | genesis of the Chengchao skarn Fe deposit, Edong ore district, middle-lower Yangtze River Valley metallogenic...evolution of pyrite at the Kopylovsky and Kavkaz black shale-hosted gold deposits, Bodaybo district, Russia:...synextensional magmatism in the Guazapares mining district of the Sierra Madre Occidental silicic large igneous...54 U-Pb geochronology of the Lagoa Real uranium district, Brazil: Implications for the age of the uranium...Atacama Desert, ChileâCarolina Munoz-Saez, Michael Manga, Shaul Hurwitz, Maxwell L. Rudolph, Atsuko Namiki |  | | Book | | 10. . 140 ...... 145 PEGMATITEâHOME OF THE GIANT MINERALS ATOMIC MINERALS Primary Uranium Minerals...metals have a typically metallic luster, as does pyrite, but others, such as azurite, which is an ore of...upon its becoming plastic when wet (a physical property) and has nothing to do with the aluminum in it...silver-lead-zinc producer in the Coeur dâAlene district of Idaho, is one of the valuable mineral deposits...by a shepherd boy in 1869. The Sudbury nickel district in Ontario had its birth in 1883 when a blacksmith |
|
