 | | Journal (article/letter/editorial) | | data of BIFs from the greenstone terranes of the Zimbabwe and Kaapvaal cratons. The study revealed that...of the iron-sulfides pyrite, arsenopyrite and pyrrhotite. The studies indicate that BIF-hosted gold occurrences...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...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) | | 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) | | 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...alternately rich in quartz (cherty), arsenopyrite,pyrrhotite, and ankerite. The gold is occludedwithin arsenopyritegrains...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) | | 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) | | Kalahari Goldridge deposit, Kraaipan Greenstone Belt, South Africa Received: 1 June 2005 / Accepted: 29 May...Springer-Verlag 2006 Abstract The Kalahari Goldridge Mine is located within the Archaean Kraaipan Greenstone...southwest of Mafikeng in the North West Province, South Africa. The ore body thickness varies from 15 to...of Geology, Rhodes University, Grahamstown 6140, South Africa Present address: N. Q. Hammond (*) Geological...associated with sulphides, mainly pyrite and pyrrhotite, and to a lesser extent, with bismuth tellurides |  | | 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 |  | 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) | | Metamorphic Pyrite, Pyrrhotite, and Marcasite at the Homestake BIF-Hosted Gold Deposit, South Dakota, USA: Insights...Paleoproterozoic Homestake deposit, northern Black Hills, South Dakota, is the largest banded ironformation (BIF)-hosted...typical diagenetic pyrite. LA-ICP-MS imaging of pyrrhotite in the same rocks reveals multistage growth in...Tl relative to all generations of pyrite and pyrrhotite. Mass-balance calculations indicate that the...the volume of upper Poorman Formation in the mine area (approx. 12 km3) could potentially yield ~4,500 t |  | | Journal (article/letter/editorial) | | THE Kolar schist belt of the Dharwar craton of south India is well knownfor its gold mineralizationand...oxidefaciesbandediron-formation by The Kolarschistbelt is a north-south-trending, 80fluidsgenerated frommetamorphic dewatering...Lodes •1-•BIF [ I•ChampmnGnefss :ra::;t'c Gne,sses South Kolar SchfstBelt :..',•Bonded IronFormorion Chompion...depositconsistsof on averageabout 25 vol quartz, sulfides(pyrrhotite,arsenopyrite,and loelpercentsulfideswith approximately...SulfideDeposits Sulfide facies iron-formation from Zimbabwe I Weight percent SiO2 2 3 4 5 6 7 8 9 |  | | 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) | | minerals are present: (vol%): pyrite (0.5-8.0), pyrrhotite (1.5-10.0), chalcopyrite (0.2-5.0), magnetite...Australia, Gaita and Tangold, Tanzania, and Wanderer, Zimbabwe (Table 2). The quartz-vein subtype in the Kshenskiy... The ore contains 10-25 vol% pyrite and 2-3% pyrrhotite with gold and silver; secondary minerals include...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 |  | Phillips, G.N., Vearncombe, J.R., Anand, R.R., Butt, C.R.M., Eshuys, E., Groves, D.I., Smith, R.E. (2019) The role of geoscience breakthroughs in gold exploration success: Yilgarn Craton, Australia. Ore Geology Reviews, 112. 103009 doi:10.1016/j.oregeorev.2019.103009 | Journal (article/letter/editorial) | | Australia of Earth Sciences, Stellenbosch University, South Africa. Resource Management Pty Ltd, Box 1093 Canning...only. Water Tank Hill mine, Western Australia; magnetite to the left, pyrrhotite with high-grade gold...software enabling drilling, geology, structure, mine plans and grade to be portrayed with simple changes...before 1979, there was existing literature from mine geologists documenting quartz veins in banded iron...the synthesis of extensive literature and valuable mine records (Groves et al., 1986; Ho and Groves 1987 |  | | Journal (article/letter/editorial) | | grains in sulfide minerals, especially pyrite, pyrrhotite; coarse visible gold in coarse quartz; spectacular...associated minerals, elements: - pyrite and/or pyrrhotite ubiquitous, few to 90% - arsenopyrite variable...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. |  | | 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 |  | | 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 (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) | | Pyrolusite Pyromorphite Pyrophyllite Pyroxmangite Pyrrhotite Quartz, lechatelierite, keatite, stishovite,...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) | | Pyrolusite Pyromorphite Pyrophyllite Pyroxmangite Pyrrhotite Quartz, lechatelierite, keatite, stishovite,...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 |  | | 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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