 | Buchholz, P., Oberthur, T., Luders, V., Wilkinson, J. (2007) Multistage Au-As-Sb Mineralization and Crustal-Scale Fluid Evolution in the Kwekwe District, Midlands Greenstone Belt, Zimbabwe: A Combined Geochemical, Mineralogical, Stable Isotope, and Fluid Inclusion Study. Economic Geology, 102 (3) 347-378 doi:10.2113/gsecongeo.102.3.347 | Journal (article/letter/editorial) | | Crustal-Scale Fluid Evolution in the Kwekwe District, Midlands Greenstone Belt, Zimbabwe: A Combined Geochemical,...The Kwekwe district comprises the central part of the Archean Midlands greenstone belt of Zimbabwe and...Sb-bearing stage 3. Four gold deposits within the Kwekwe district have been studied. The Primrose and Globe and...gold mineralization at Jojo and especially the Indarama gold deposits probably formed at lower temperatures...early moderate- to late high-salinity fluids. At Indarama, microthermometric studies indicate stibnite-gold |  | | Journal (article/letter/editorial) | | mineralization in the Midlands greenstone belt: a new type of low-grade gold deposit in Zimbabwe Received: 29...in the Kwekwe district near the Indarama mine, approximately 200 km southwest of Harare, Zimbabwe. Based...Sulphide mineral separates of pyrite and minor arsenopyrite probably contain invisible gold (up to 120 ppm)...shear-zone hosted gold mineralization in the Kwekwe district, for which a deep crustal origin has been discussed...central part of the Midlands greenstone belt is one of the largest gold districts in Zimbabwe and, on a world |  | Nutte, T. H. C., Oberthïżœr, T., Saager, R., Tomschi, H. -P. (1988) The geology, mineralogy and geochemistry of the broomstock gold deposit, Kwekwe Greenstone Belt, Zimbabwe; Some implications for gold mineralization in jaspilite iron formations. Mineralogy and Petrology, 39 (2) 145-162 doi:10.1007/bf01184820 | Journal (article/letter/editorial) | | Geochemistry of the Broomstock Gold Deposit, Kwekwe Greenstone Belt, Zimbabwe; Some Implications for Gold Mineralization...Geology Department, University of Zimbabwe, Mount Pleasant, Harare, Zimbabwe, 2 Mineralogisches Institut,...1988; accepted April 22, 1988 Summary At Broomstock Mine, three types of gold mineralization have been identified:...characterized by fracturing, brecciation and abundant arsenopyrite-pyrite mineralization. The mineralization was...der Goldlagerstiitte Broomstock im Kwekwe Greenstone Belt, Zimbabwe: Bedeutung ~ r Goldvererzung in jaspitischen |  | OberthĂŒr, T., Blenkinsop, T. G., Hein, U. F., Höppner, M., Höhndorf, A., Weiser, T. W. (2000) Gold mineralization in the Mazowe area, Harare-Bindura-Shamva greenstone belt, Zimbabwe: II. Genetic relationships deduced from mineralogical, fluid inclusion and stable isotope studies, and the Sm-Nd isotopic composition of scheelites. Mineralium Deposita, 35 (2) 138-156 doi:10.1007/s001260050012 | Journal (article/letter/editorial) | | Mazowe area, Harare-Bindura-Shamva greenstone belt, Zimbabwe: II. Genetic relationships deduced from mineralogical...In the Mazowe area some 40 km NW of Harare in Zimbabwe, gold mineralization is hosted in a variety of...the mainly granodiorite-hosted workings at Mazowe mine are on pyrite-rich reefs, mines of the Bernheim...are characterized by arsenopyrite-rich ores, and Stori's Golden Shaft and Alice mine, both in metabasalts...Department, University of Zimbabwe, P.O. Box MP 167, Mount Pleasant, Harare, Zimbabwe U.F. Hein Institut fuĂr |  | | Journal (article/letter/editorial) | | Kolar goldfield, India Nevoria, W. Australia Cuiaba Mine, SE Brazil Bronzewing, W. Australia Junction, W...Uti, India Primrose, Kwekwe district Jojo, Kwekwe district Indarama, Kwekwe district Igarape Bahia, Brazil...(Yilgarn), Brazilian, and South African (Barberton and Zimbabwe), Scandinavian, Indian, and Australia (Superior...with allowance for gold extracted over the entire mine life. Deposits with reserves over 100 tons usually...Australia Harnas area, Sweden Aitik, Sweden Paiol mine, Brazil Kamennoe, Russia Cobalt Hill, Canada Gongo |  | | Report (issue) | | disseminated mineralization in wall rocks): pyrite+arsenopyrite+ gold+(locally) pyirhotite+chalcopyrite+ferberite+scheelite;...submicroscopic gold of 800 to 930 fineness, mostly in arsenopyrite and less commonly in pyrite distributed in altered...paragonite, pyrophyllite)+(near ore bodies) pyrite-f arsenopyrite+(rare) albite+epidote; in mafic and ultramafic...with gold grades; gold associates mainly with arsenopyrite and pyrite. This subtype is common for stratiform..., Roger, G., Moelo, Y., et Bril, H., 1990, Le district a antimoine-or DuricoBeirao (Portugal): Evolution |  | Obolensky, A.A., Gushchina, L.V., Borisenko, A.S., Borovikov, A.A., Nevolâko, P.A. (2009) Computer thermodynamic modeling of the transport and deposition of Sb and Au during the formation of Au-Sb deposits. Russian Geology and Geophysics, 50 (11) 950-965 doi:10.1016/j.rgg.2009.10.004 | Journal (article/letter/editorial) | | South African (Gravelot, United Jack, Weigel, Indarama, Gothic), Australian (Blue Speck, Wiluna), Yenisei...produced at two early stages (arsenopyrite-pyrite and pyrite-arsenopyrite-stibnite) are stibnite, berthierite...berthierite, pyrite, arsenopyrite, and gold; the veined minerals are dominated by quartz and, more seldom...gold is finely dispersed and occurs mainly in arsenopyrite (up to 0.16â0.3 wt.%) and pyrite (0.02 wt.%)...Boiron et al., 1989, 2001 Briod Massiac (ore district), France 350â250 260â150 â â Bril and Beaufort |  | | Journal (article/letter/editorial) | | India, South Africa, Australia, Finland, and Zimbabwe. The data were taken from 33 publications and...Valdez Group, USA Venus, Canada Monte Rosa gold district, Italy Fairview, Oro Fino, Canada Twin Lakes,... USA Bralorne-Pioneer, Canada Monte Rosa gold district, Italy Bralorne-Pioneer, Canada Callery, New Zealand...New Zealand Böckstein, Austria Monte Rosa gold district, Italy Kensington, USA Jualin, USA Shannan area...Mazhala, China Qolqoleh, Iran Bangbu, China Oriental mine, USA Big Hurrah, USA Mouther Lode, USA Yata, China |  | | Journal (article/letter/editorial) | | Gold formed in two stages: stage 1 goldpyrite-arsenopyrite is ïŹnely disseminated in the wallrock and breccia... In Zimbabwe, Buchholz et al. (1994) 937 described gold-antimony mineralization in the Kwekwe district...district within the Midlands greenstone belt. In the Yilgarn Craton of Western Australia, Playter (1936)...quartzdolomite/ankerite-pyrite±chlorite±sericite±fuchsite± arsenopyrite borders high-grade (>3 g/t Au) ore zones, whereas...whereas albite-quartz-dolomite-arsenopyrite±pyrite deïŹne the high-grade ore zones. Gold occurs largely |  | | Journal (article/letter/editorial) | | andthe conditions of deposition. fromthe Seiniijoka district,Finland(Borodaev et al., 1983), Stibnite,ashasalreadybeennoted...1988). vanandAndrSâą,1994),andtheAlpha-Gravelotte mine,South Interestingly, theprincipal mineral associations...Ore:stibnite, berthierite, pyrite, pyrrhotite, arsenopyrite, tetrahedrite,scheelite, Deposition fromslightly...withlesser pyrite, pyrrhotite, nativeSb,and arsenopyrite Gangue:quartz Stibnitedeposited from hydrothermal...Nativeantimony or gudmundite dominant Seiniijoki district,Finland PiiakkOnen (1966),Balitsky et al. (1976) |  | | Book (edition) | | bireflectance. Left (top): The simple contact twin of arsenopyrite is inconspicuous under PPL, but reveals its...share their main crystallographic axes. Left: Arsenopyrite occasionally displays hour-glass structures...red-violet cruciform, star-like trillings Arsenopyrite Talnakhite strong, bluish to brownish grey...distinct, dark brownish grey distinct (less than arsenopyrite), blue to brownish grey strong, bluish to brownish... Mineral Descriptions Molybdenite in Graphite; Bogala Mine, Sri Lanka 51 Copper, native Synonym(s): Cuivre |  | | Journal (article/letter/editorial) | | Light rare earth elements enrichment in an acidic mine lake (Lusatia, Germany)âElke Bozau, Marc Leblanc...anthropogenic factors influencing mercury speciation in mine wastes: An EXAFS spectroscopy studyâ Christopher...Rossetti A kinetic study of the oxidation of arsenopyrite in acidic solutions: Implications for the environmentâYu...by oxygen isotope data: The case of Sandawana, ZimbabweâJohannes C. (Hanco) Zwaan, Alain Cheilletz, and...2004 Is groundwater in the Tarkwa gold mining district of Ghana potable? âJerry S. Kuma Selenium source |  | | Report (volume) | | Blenkinsop examine Archaean deformation patterns in Zimbabwe and the adjacent Limpopo Belt and discuss the...Stratigraphic and tectono-stratigraphic problems in Zimbabwe and Western Australia are described in the next...mineralization in the Kadoma region of the Zimbabwe Midlands. Three papers describe the structures of the...:INSOP,T. G. Archaean deformation patterns in Zimbabwe: true indicators of Tibetan style crustal extension...geochronology of Archaean felsic sequences in the Zimbabwe craton: a revision of greenstone stratigraphy |  | | Book (edition) | | Ferroselite Hastite Frohbergite Mattagamite Froodite Arsenopyrite Glaucodot Gudmundite Löllingite Safflorite Rammelsbergite...(yellowish white), quartz (dark grey); New Bullfrog mine, Nye Co., Nevada, USA [h]; Nic. // Anhedral electrum...(greenish grey), quartz (dark grey); New Bullfrog mine, Nye Co., Nevada, USA [h]; Nic. // Anhedral electrum...(bluish grey shades), quartz (dark grey); New Bullfrog mine, Nye Co., Nevada, USA [h]; Nic. // 8 Gold A ...sample - photo A), dolomite (dark grey); Harstigen Mine, Pajsberg, Filipstad, VĂ€rmland, Sweden [j]; Nic |  | | Report (issue) | | interest in the geo logy and mineral resources of Zimbabwe which followed the removal of United Nations sanctions...original Bulletin is the insertion of Table IIIA, Zimbabwe Mineral Production and Value, on page 114A. Due...for views of Wankie Colliery and the Trojan nickel mine, and to the Photographic Section of the Ministry...near Salisbury. facing page 23 IV Trojan Nickel Mine, near Bindura. facing page 33 V The Great Dyke...Complex. VI Chrome seam in the Great Dyke, Vanad Mine. VII Lower Karoo Landscape. No. 1 Colliery, Wankie |  | | Journal (article/letter/editorial) | | Rhodesia(locatedin the Midlands greenstonebelt, intrusive granites. The Scotia Talc Mine in the halfway betweenthe...GeologicalSetting Area and Reference Range Mean Selukwe Peak Mine 52.32-58.41 55.59 Railway Block, Priority 1 Magazine...Prince Mine situated near the of the complex. Tremendous tonnages of inter- King asbestos mine (Fig...areaaroundGatooma,which is located in the northern part of the Midlands belt (Fig. 1), there were 359 minesthat Dyke,...Cam and Motor Mine, 8.6 percentfrom the Giant Mine, 4.4 percentfrom the Thistle Etna Mine, and 23 percent |  | | Journal (issue) | | Sci 69(5):452-454 Research article Arsenic in mine waters: an international study M. Williams Abstract...Hydrochemical data are presented for arsenic (As) in the mine waters of 34 gold and base-metal mining localities...As**-As°* relationship with mine water pH/Eh regime. Important determinants of mine water As fluxes include...sequence that follows sulphide oxidation, climate and mine management. Human toxicological im- pacts of As...risk assessment. Keywords Speciation Arsenic - Mine waters - Toxicity - Mobility - transformations |  | | Journal (article/letter/editorial) | | Gudmondite+ pyrrhotite Bollden, Sweden Jacob(19âą2) Nikko mine, South Korea Imai (âą9âą9) Little CarpathianMtns....gudmunditeassemblage wouldelimi- copyrite,or arsenopyrite canrepresent a stableequinate the d-c-e-g alternativeif...Imai, H., 1949,Geologyand ore depositsof the Nikko mine, South Korea, with special reference to the genesis... 1957, Mineralogy of the Giant Yellowknife gold mine, Yellowknife, N.W.T.: Ecoâąr. Gv.oL., v. 52, p. 400-425...1962, The occurrenceof aurostibite in the Gwanda District, Southern Rhodesia: Geol. Soc. South Africa Trans |  | | Journal (issue) | | ..... 337 by D. J. Mossman The Colorado Quartz mine, Mariposa County, California: a modem source of...she and Brooks became part owners of the Old Yuma mine nearby. After a few years her strong love of minerals...ventures in Mex ico (particularly the San Francisco mine in Sonora). Many extraor dinary specimens passed...fuse cutting pliers, and plunger-type detonators. Mine bells and the bell signal sign that accompanied...underground wiring (left one, green, is marked âJEFFREY MINE IN SULATORâ; right one, purple, is marked âCALIFORNIAâ); |  | | Book (edition) | | Linopolis, Brazil, H Page 13: Gold, 35 mm.Eagle's est Mine, California, G Publi!>hed by Grdllit.u.o. Stefanikova43...dept. (departement), dept. (departamento), dist. (district). Less common terms are not abbreviated, e.g....Rice, Dolores co., both Colorado, at the Questa mine, Taos co., New 1994. Abernathyite K2[(UOJ 2l(AsO_J2]âą6HzO...Harding Co .. South Dakota. and at the Fuemrole No2 mine, Emery co .. Utah. Also at Menzenschwand Scbwarzwald...mainly in crystals to 5 cm at the Himmelsftirst mine, Freiberg, both Saxony, Germany. In the subtropical |  | | Book | | Introduction CHAPTER I Mink Labotjb 1. Census of mine employees.â2. Socialistic Unionism.â3. Premium on...French company.â10. Tronoh mines.â 11. Batu Gajah district.â12. Gopeng hydraulicking.â13. Pioneer dredges...Bulkheads.â14. Stope and block methods at Central Mine ..... 108-1 1G xii CONTENTS CHAPTER XII NEW...117-124 CHAPTER XIII TASMANIA Mount Lyell Copper-Mine 1. Region of divera interests.â2. Climatic defects...CHAPTER XIV TASMANIAâContinued Mount Bischoff Tin-Mine 1. Hardships of pioneers.â2. First points of attack |
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