 | | Journal (article/letter/editorial) | | data of BIFs from the greenstone terranes of the Zimbabwe and Kaapvaal cratons. The study revealed that...increased contents of the iron-sulfides pyrite, arsenopyrite and pyrrhotite. The studies indicate that BIF-hosted...geochemistry of some BIF-hosted gold deposits in Zimbabwe and considers mineralogical and geochemical aspects...greenstone belts of the Kaapvaal and the adjacent Zimbabwe cratons (Fig. 1). The two cratons are separated...previously (Fripp 1976, Fos- S 126 BROOMSTOCK MINE _~7-" ZIMB,ABWE CRATON Distribution of ] ore zones |  | | Journal (article/letter/editorial) | | -HostedGold Mineralization in the Gwanda Greenstone Belt, Zimbabwe RUDOLF SAAGER,*THOMAS OBERTH/JR,AND...Germany Abstract The metamorphicrocksof the Archcan Gwanda greenstonebelt of southwesternZimbabwe consistof...alsoas microscopicto submicroscopic inclusionsin arsenopyrite,pyrrhotite, and other sulfides.Geochemicalstudiesindicate...which was obscuredby metamorphicoverprint. At Vubachikwe,discordantore stringersare explainedasmetamo...significantpart of the country'sforeignexchangeincome. In Zimbabwe gold mineralizationoccursgenerally in Archcangreenstoneterranes |  | | Journal (article/letter/editorial) | | Ferruginous Quartzites (As Exemplified by the Zimbabwe Deposits) Ye. M. Nekrasov a a All-Union Research...Ferruginous Quartzites (As Exemplified by the Zimbabwe Deposits), International Geology Review, 26:1...FERRUGINOUS QUARTZITES (AS EXEMPLIFIED BY THE ZIMBABWE DEPOSITS) Downloaded by [Monash University Library]...who has studied regional metallogeny of gold in Zimbabwe. belts have been divided into three groups (Sebakwe...quartz-feldspar and felsite porphyries. Most of Zimbabwe is located within t h e Rhodesian Shield of the |  | | Journal (article/letter/editorial) | | of Rhodesia. The occurrenceof gold at the Vubachikwe gold mine has been studied together with samplesof...Pickstone, and Sherwood Starr mines. At the Vubachikwe mine the orebodies occur in several thin beds of...layers alternately rich in quartz (cherty), arsenopyrite,pyrrhotite, and ankerite. The gold is occludedwithin...Both he and Kleinot (1963), who later mappedthe mine in further detail,consideredthe gold to be of h...wasfaciI58 A detailed examination of the Vubachikwe mine has been made, and the stratigraphic situation |  | | Journal (article/letter/editorial) | | identical area, Broken Hill, New South Wales: Linnean Soc. New South Wales Proc., v. 108(1), p. 1-21....BANDED IRON-FORMATION-HOSTED IN THE GWANDA GREENSTONE BELT, ZIMBABWE--A GOLD DISCUSSION S. MASTER,G...iron-formation-hostedgold deposits of the Archcan Gwanda greenstonebelt in * Present address: Bundesanstalt...epigenetic.Tyndale-Biscoe (1940) suggested that, at Vubachikwe,poorlymineralizedreefswere impregnationsin relatively...and Hodgson(1986). On an undergroundvisit to Vubachikwe mine in 1987 (equallyas brief as the one made by |  | | Journal (article/letter/editorial) | | MINERALIZATION OF BANDED IN THE GWANDA IRON-FORMATION-HOSTED GREENSTONE BELT, ZIMBABWE--A GOLD REPLY R. SAAGER...mineralizationin iron-formations at the Vubachikwe mine because this supportsour genetic model and...mineralizationat the Vubachikwe chemistryof the ore-bearingbandediron-formation, mine is commonlycorrelatedwith...emplacedat different times, featureslike zoningof arsenopyrite, metamorphic reonebeinga synsedimentary, the...goldmineralizationat VubachikweandBar 20 must the Vubachikwe-Bar20 region which canbe traced take our observations |  | | Journal (article/letter/editorial) | | Amm,1940;Goldberg, 1964;Lewis, Canada,Australia, Zimbabwe, SouthAfrica,Brazil,and lierworkers 1965) pointed...Theseincluderemobilizationof goldin bandediron-formation hosts Zimbabwe; Barberton; MorroVelho,Brazil).Thetwo earliersyngenetic...adaptedfromFripp's(1976a)modelforSebakwian timesin Zimbabwe. In developingcriteria for syngenesis or epigenesis...oxide thedeposits muts and Theron, 1975), on the mine scale(Groves (or carbonate) on a mesoscopic or microscopic...goldores.The oresare at Barberton, South Africa, and from Zimbabwe are characterized byhighconcentrations |  | | Journal (article/letter/editorial) | | pohwatp@si.edu Siderite Siete Suyos Mine, Atocha-Quechisla District Sud Chichas Province, Potosí Department...1. Gemmy siderite from Siete Suyos mine, Atocha-Quechisla district, Sud Chichas Province, Potosí Department...& MINERALS Figure 2. Siderite with quartz, from Mine Hill, Roxbury, Litchfield County, Connecticut. The...Very fine examples of siderite were collected from Mine Hill, Roxbury, Litchfield County, where large cleavage...associated quartz (fig. 2). From the Palermo No. 1 mine, North Groton, Grafton County, New Hampshire, come |  | | Journal (article/letter/editorial) | | Africa. of Botswana, the northeasternsegment of South The purposes of this paperare, briefly,to consider...+++•+++++++* *++7+++**+ 19 BULAWA¾O-9UBI + 20 FILABUSI -- 21 GWANDA ++++++++++ **+*++7+++++ +•*++++*+++ *+•**+++++++...GREENSTONE BELT LITHOLOGICAL UNITS RHODESIA/BOTSWANA SOUTH AFRICA/SWAZILAND Sedimentary unit ShamraJah Mafic-to-l'el$ic...Swazilandsuccession in the BarbertonMountainLand, South Africa. The distribution of the Lower Ultramafic...ith TABLE the Barberton Stratigraphic Model SOUTH AFRICA Barberton SWAZILAND Belt MOODIES MOODIES |  | | Journal (article/letter/editorial) | | THE Kolar schist belt of the Dharwar craton of south India is well knownfor its gold mineralizationand...arsenopyriteand positivelycorrelates with the arsenopyrite content Very weak to absent 25 vol percent ...oxidefaciesbandediron-formation by The Kolarschistbelt is a north-south-trending, 80fluidsgenerated frommetamorphic dewatering...pyrrhoNarayanaswamiet al. (1960), Viswanathaand Ra- tite, arsenopyrite,and siderite.Behera(1987) pro- 15 5 4 SIDDAIAH...Lodes •1-•BIF [ I•ChampmnGnefss :ra::;t'c Gne,sses South Kolar SchfstBelt :..',•Bonded IronFormorion Chompion |  | Steadman, Jeffrey A., Large, Ross R. (2016) Synsedimentary, Diagenetic, and Metamorphic Pyrite, Pyrrhotite, and Marcasite at the Homestake BIF-Hosted Gold Deposit, South Dakota, USA: Insights on Au-As Ore Genesis from Textural and LA-ICP-MS Trace Element Studies. Economic Geology, 111 (7) 1731-1752 doi:10.2113/econgeo.111.7.1731 | Journal (article/letter/editorial) | | Marcasite at the Homestake BIF-Hosted Gold Deposit, South Dakota, USA: Insights on Au-As Ore Genesis from...Paleoproterozoic Homestake deposit, northern Black Hills, South Dakota, is the largest banded ironformation (BIF)-hosted...that the volume of upper Poorman Formation in the mine area (approx. 12 km3) could potentially yield ~4...districts. Introduction The Homestake deposit in Lead, South Dakota (Fig. 1a-d), was among the world’s giant...Precambrian and Tertiary lithologies within the mine; (2) other gold deposits of known Tertiary age in |  | | Journal (article/letter/editorial) | | by-productgold, of which the bestknown exampleis the Horne mine at Noranda, Quebec.Their high gold content and coregionality...veins,asin the "flow ore body" at the Kerr-Addison mine in Kirkland Lake, Ontario (Bakeret al., 1957; Kishida...(Fleischerand Routhier,1973), and West Africa, and Zimbabwe and for at least three in the newly discoveredHemlo...bodiesof massiveauriferouspyrite as at the AgnicoEagle mine in Joutel,Quebec (Barnettet al., 198œ),andthe Dumagamimine...sedimentaryhorizons like the ankerite veins at Dome mine, South Porcu- ern Australia, and southern Africa. The |  | | Journal (article/letter/editorial) | | (0.5-2.0), ilmenite (3.0-7.0), occasionally arsenopyrite (up to 2.0) and pentlandite; secondary minerals...Australia, Gaita and Tangold, Tanzania, and Wanderer, Zimbabwe (Table 2). The quartz-vein subtype in the Kshenskiy...interstratified flows of the Cam-Motor deposit in Zimbabwe, the Kolar deposit in India, subvolcanic ultramafic-mafic...andesite and komatiite of the Cam-Motor deposit in Zimbabwe, and the Yellowknife deposit in Canada; 2) with...Mount Morgan deposits in Australia, the Vubachikwe deposit in South Africa, and auriferous bodies in massive |  | | Journal (article/letter/editorial) | | pyrite and/or pyrrhotite ubiquitous, few to 90% - arsenopyrite variable, when present may be rich ore or barren...Vipond Series: decline into Hoyle Falconbridge pit, South Porcupine, Ontario. Fig. 2 (b). Coarse felsic agglomerate...agglomerate, probably a subaqueous pyroclastic flow; south pit rim, Dumagami surface orebody, Cadillac, Quebec...clasts of auriferous pyrite 1422 E drift, Pamour Mine, Timmins, Ontario. 354 R.W. HUTCHINSON Fig....sulfide (right) facies ironformation (exposure south of Mine Doyon pit, Cadillac, Quebec ). Fig. 3 (d). Single |  | | Report (volume) | | greenschistfacies metamorphism; the Vermilion district is located within this subprovince, southeast...with the Minnesota Geological Survey, along north-south lines spaced 0.4 km apart at an elevation of 90...WawaShebandowan subprovince which includes the Vermilion district of Minnesota, is a greenstone-granite terrane...and others, 1989). The terrane is bounded on the south by the Rainy Lake-Seine River fault. In the area...north and the Rainy Lake-Seine River fault on the south (fig. 3), the metavolcanic rocks, which Lawson ( |  | | Report (issue) | | GRANDFATHER TENNESSEE ~~ MOUNTAIN KIOKEE BELT SOUTH CAROLINA ug 5; “A BARTLETT'S/.2 FERRY FAULT ? ...Metallogeny Settings of Base and 1 Precious of the South-Central Sulfide Mineralization along Mountain,... for Volcanogenic Appalachians E. Geologic South Sulfide (Thornton The Aspects Carolina Faulkner...Carolina Robert Butler) District, 78 Southernmost at Four Gold Slate Belt Mine, 97 F. Hollister) ...Element Signature of Some Major Dahlonega District, Lumpkin County, Jc., and James R. Burnell, Jr |  | | Report (volume) | | SALT LAKE CITY, Utah--Federal Bldg., Rm. 8105,125 South State St. SAN FRANCISCO, California--Customhouse...rock types 133 Cross section through the Kalavos district Cyprus showing relationship of massive sulfide...based on considerations that extend far beyond the mine itself, in some instances relating to the overall...subject, as in a scale model of the workings of a mine, to a unifying concept that explains or describes...represents an individual deposit (or, rarely, a district), cumulated in ascending grade or tonnage. Where |  | | Journal (article/letter/editorial) | | Armenite Arsenic native Arseniosiderite Arsenolite Arsenopyrite Asbolane Atacamite Atokite Attapulgite/palygorskite...salinity as a result of devolatilization of subducted South Pennic rocks. During the Paleogene orogeny under...hanging wall. During a subsequent mining period, the mine was re-opened to recover sideritic parts of the...you look for a mine look near a mine”. This includes the imperative “if you look for a mine look for smelting...also for the chrome diopside found at Outukumpu mine, a mineral that is first and foremost recognized | | | Journal (article/letter/editorial) | | Armenite Arsenic native Arseniosiderite Arsenolite Arsenopyrite Asbolane Atacamite Atokite Attapulgite/palygorskite...salinity as a result of devolatilization of subducted South Pennic rocks. During the Paleogene orogeny under...hanging wall. During a subsequent mining period, the mine was re-opened to recover sideritic parts of the...you look for a mine look near a mine”. This includes the imperative “if you look for a mine look for smelting...also for the chrome diopside found at Outukumpu mine, a mineral that is first and foremost recognized |  | | Book | | ............... . 83 The Fresnillo Ag-Pb-Zn District, Zacatecas, Mexico .............................Massive Sulfide Deposits of the BathurstNewcastle District, New Brunswick, Canada Discussion of Tectonic................... . 4.5.2 The Homestake Gold Mine, South Dakota .. 4.5.3 Pre-Metamorphic Stratiform Gold...Post-Metamorphic Quartz-Rich Vein Ores: The Sigma Mine, Quebec ................ . 4.5.5 Discussion and.............. The Chromite Deposits of Selukwe, Zimbabwe .............................. Discussion ... |  | | Report (issue) | | of the Corbet Massive Sulphide Deposit, Noranda District, Quebec, Canada My-eknuckeycand Jo) Watkitisieasenae...Genesis of the Balmat Zinc Deposits, Anderson PC. Mine, Lake Snow Manitoba Lake, 0-25 ly Walford...for Richard Innis, Manager of McIntyre Porcupine Mine in Schumacher, Ontario. There was less specialization...into production of gold in 1936 as the Belleterre Mine. Howard Robinson moved back to U.S.A. about 1950...memorial to a geologist who was equally at home in the mine and in field exploration. Duncan R. Derry July |  | | Book | | and Central Queensland, 1974 . South Australia, 1975 . Illawarra District, 1976 . Tasmania, 1977 . North...uranium treatment plant Managing the Ranger Uranium Mine in the Alligator Rivers Region—there is much more...White’s overburden heap Mine planning and scheduling at Ranger Uranium Mine—environmental requirements...design and operating aspects of the Ranger Uranium Mine treatment plant Laboratory study of the subaerial...Some recent changes and innovations at Mount Isa Mine Commissioning and operation of the 800 TPH heavy |
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