 | | Journal (issue) | | Geological Society of Zimbabwe Newsletter February, 2011 Geological Society of Zimbabwe G Z S Newsletter...SOCIETY OF ZIMBABWE, P.O. BOX CY 1719, CAUSEWAY, HARARE Geological Society of Zimbabwe Newsletter ...The Centennial Field Excursion to the Belingwe Greenstone Belt and the Great Dyke, 23rd – 25th October...……………………….. Geology Department, University of Zimbabwe ……………………………………… Geological Survey Department ...Committee, on behalf of the Geological Society of Zimbabwe, would like to offer a sincere vote of thanks |  | | Journal (article/letter/editorial) | | encounteredin the two regions. Introduction granite-greenstone terrain hasthe distinctionof having been the.../-' ZAMBE. Zi 17 _. '-i 'ø e V 4- +e GREENSTONE BELTS ! SINOIA-SIPOLILO + + 2 MT OARWIN + ...Complex Archean granites, gneisses, mlgmatites GREENSTONE BELT LITHOLOGICAL UNITS RHODESIA/BOTSWANA SOUTH...(Anhaeusser et al., tionarydevelopment ofthegranite-greenstone terrain 1969; Anhaeusser,1973a; Mason, 1973)...particularly in the Canadian Shield. The Archean Granite-Greenstone Terrain oC trati!traphy of Southern Africa |  | | Journal (issue) | | Geological Society of Zimbabwe G S Z Newsletter June 2018 No. 2 of 3 of 2018 Artisanal chrome...Society of Zimbabwe, P.O. Box CY 1719, Causeway, Harare Geological Society of Zimbabwe Newsletter ...du Toit Memorial Lecture ……………………………...….…. The Zimbabwe Craton in Mozambique: A brief review of its geochronological...Department, University of Zimbabwe – Maideyi Meck …………… News from the Zimbabwe School of Mines – Maideyi...Blenkinsop UZ Geology Field Trip Fund ………………. Midlands State University, Faculty of Mining and Mineral |  | | Journal (article/letter/editorial) | | Archaean Mashaba Igneous Complex, south-central Zimbabwe M.D. Prendergast Guesachan, Shielhill Road, Kirriemuir...komatiitic flow within the adjacent Mashava-Masvingo greenstone belt to be 2754 ± 13 Ma. Recent geological observations...thin and evolved West Sill within early Archaean greenstone and gneissic basement, and the major Northwest...comagmatic flow fields are conspicuous greenstone components of the Zimbabwe craton and host important mineral...intrusion emplaced within gneiss and greenstone basement and adjacent greenstone cover rocks (Figure 2). This |  | | Journal (article/letter/editorial) | | Nickeliferous Archean Madziwa Igneous Complex, Northern Zimbabwe: Petrological Evolution, Magmatic Architecture...Great Dyke 17°S Greenstone belt am bia 30°E 32°E 100 km Fig.2 Eo M P Zimbabwe craton E Harare...Introduction The Madziwa Igneous Complex in northern Zimbabwe comprises a regional group of nickeliferous, mafic-ultramafic...principal causal role in sulfide segregation at Madziwa mine and the camp was later cited as a type-example of...light of investigations carried out before final mine closure (including detailed mapping, walk-over surveys |  | | Journal (issue) | | Geological Society of Zimbabwe Newsletter June, 2011 Geological Society of Zimbabwe 1960 -2010 G S Z...Newsletter June 2011 Tectonic evolution of the Zimbabwe Craton in the early Palaeoproterozoic. (a) Following...Following Söderlund et al. (2010), the Zimbabwe craton is positioned along the eastern margin of the Superior...basin initiated. (c) Assembly of the Kaapvaal and Zimbabwe cratons, and unknown terrane, Terra Incognita...Incognita at ca. 2.0 Ga led to tectonic escape of the Zimbabwe Craton and dextral shearing in the Limpopo Belt |  | | 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. The occurrenceof gold at the Vubachikwe gold mine has been studied together with samplesof mineralized...Connemara, Empress, Marvel, Nelly 404, Pickstone, and Sherwood Starr mines. At the Vubachikwe mine the orebodies...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...concept of a widespread, have been noted in the greenstone belts of lower, more ultramafic unit and was |  | | Book | | the Southern Hemisphere 3. K.C. CONDIE Archean Greenstone Belts 4. A. KRONER (Editor) Precambrian Plate...stratigraphy, recognition of older and younger greenstone belts in the Dharwar Craton, revival of basement...USSR Academy of Sciences, Chernogolvka, Moscow district, U . S . S . H . J. Foden, Bureau of Mineral Resources...Rhodesia, Box M.P. 167, Mount Pleasant, Harare, Zimbabwe. R.W. Ojakangas, Department of Geology, University...O. B o x . MP. 1 6 1 , Mount Pleasant, Harare, Zimbabwe. B.F. Windley, Department of Geology, University |  | | Journal (issue) | | Geological Society of Zimbabwe Newsletter February, 2008 Geological Society of Zimbabwe G S Z Newsletter...SOCIETY OF ZIMBABWE, P.O. BOX CY 1719, CAUSEWAY, HARARE Geological Society of Zimbabwe Newsletter ...………………… … 4 Summary - Geological Society of Zimbabwe, Summer Symposium 30th November 2007 Keith A....Department, University of Zimbabwe ……………………………………… The Geological Survey of Zimbabwe ………………………………………………… Mining...Committee, on behalf of the Geological Society of Zimbabwe, would like to offer a sincere vote of thanks |  | | Journal (article/letter/editorial) | | Premier Mine K Kimberley Ko Koffiefontein J Jagersfontein I Madziwa II III Trojan Mine Empress...Empress Mine IV Tati V VI VII VIII IX Magogaphate Selibe Vlakfontein Barberton Insizwa FOCI OF MANTLE...work indicates a Precambrian age for the Premier Mine kimberlite (Van Zyl, 1968). However, the presenceof...recognizedin West Africa and in Russia (Bardet, 1965). district. association between crustal weaknesses and mafic...Strikingevidence of suchmegastructural controls on (Empress Nickel). The Empress nickel deposit the distribution of certain |  | | Report (issue) | | August 1986, the development of a major new platinum mine was announced in South Africa (E.C.I. Hammerbeck...chromitite layer are to be exploited in the new mine to a depth of 2,700 meters below the surface. This...-----------------5. Proportions of total vvorld mine production of platinum-group metals accounted for...------------------------6. Platinum-group-metal mine production in countries having major deposits and...-----------5-6. Estimated cumulative and annual mine production of platinum-group metals: 5. For each |  | | Journal (article/letter/editorial) | | W-Greenland Empress Mine, near Mashava, Zimbabwe Empress Mine, near Mashava, Zimbabwe Tomka Mine, Orissa...Purnapani Mine, Orissa, India Mt.Gibson, W-Australia Mt.Gibson, W-Australia Broomstock Mine, near Kwe...Kwe Kwe, Zimbabwe Elvington Mine, near Chegutu, Zimbabwe E-Anshan, NE-China Qidashan, NE-China Lower Marra...Geochemistry of Precambrian carbonates: II. Archean greenstone belts and Archean sea water. Geochim. Cosmochim |  | | Journal (issue) | | Geological Society of Zimbabwe Newsletter October, 2009 Geological Society of Zimbabwe G Z S Newsletter...the threat of geo-hazards in Zimbabwe THE GEOLOGICAL SOCIETY OF ZIMBABWE, P.O. BOX CY 1719, CAUSEWAY...CAUSEWAY, HARARE Geological Society of Zimbabwe Newsletter October, 2009 Contents EDITORIAL ………………………………...Geological Society Representative’s report on the Zimbabwe School of Mines ... 13 New Geological map of Mozambique...……………………….. Geology Department, University of Zimbabwe …………………………………….. Geological Survey Department |  | | Journal (article/letter/editorial) | | (gabbronorite, anorthosite, magnetite gabbros) Greenstone rocks with komatiites Hickman and Van Kranendonk...magmatic events in continental Australia, including greenstone belts. As illustrated in the “barcode” of Fig...rocks, which unconformably overlies the granite-greenstone rocks of the Archaean Pilbara Craton, in the...Kranendonk (2004) proposed that the East Pilbara greenstone successions can be interpreted as a series of...East Pilbara Craton contains a succession of greenstone rocks, with overall synformal structures and |  | | Journal (article/letter/editorial) | | ns associated with Archeanvolcanic-dominated greenstone belts.Thechondrite-normalized REEpatternsfor...Bandediron-formations associatedwith Archcan,volcanic-dominated greenstone beltsare themselves thoughtto be productsof...SulfideDeposits Sulfide facies iron-formation from Zimbabwe I Weight percent SiO2 2 3 4 5 6 7 8 9...4: Bar20#1 (3 and4 fromSaageret al., 1987), 5 = Empress,6 = Pickstone,7 = Sherwood,8 = Camperdown,9 = Cannemra(5...Manyvolcanichostedbanded iron-formationsin Archcan greenstone belts elsewhere in the world also have similar |  | | Journal (article/letter/editorial) | | Michal E. Fleet Empressite, AgTe, from the Empress-Josephine mine, Colorado, U.S.A.: Composition, physical...bedrock sources for the Estero Hondo alluvial gold mine, western Ecuador—M. Potter and M.T. Styles 0361-0128/98/000/000-00...related host rocks of the Orlovka–Spokoinoe mining district, eastern Transbaikalia (Russia)—A. Dolgopolova...METALLURGY No. 1, 2004 Targeting a large open pit gold mine at Mt Gibson, Western Australia Incentives for mineral...and ore estimation at the Callie Underground gold mine, Tanami, NT 44 53 71 BASIN RESEARCH Vol. 16, No |  | | Report (issue) | | 195 Zambia . . . . . . . . . . . . . . . . 203 Zimbabwe . . . . . . . . . . . . . . . 213 Other Countries...of diversified experience in mineral exploration, mine design, development, and operations, as well as...chromite resulting from cutbacks in South Africa and Zimbabwe, and of phosphate rock owing to a lower output...cobalt, copper, and diamond; Zambia for cobalt; and Zimbabwe for chromium and lithium. U.S. exports to Africa...In Botswana, Gabon, Namibia, South Africa, and Zimbabwe, relatively successful diversification bas grown |  | | Journal (article/letter/editorial) | | Metallogeny smaller ultramafic bodies (sometimes of greenstone belt association). The relatively narrow spread...footwall of the irruptive) have made the Sudbury District the greatest single producer of nickel since the...between volcano-sedimentary sequences suggesting greenstone-belt associations, as in the ease of the Petsamo...area, Western Australia (McCALL, 1972), and the Empress Ni-Cu-deposit, Rhodesia (SrIAneE, 1964). 2.2. T...for certain sulfide assemblages of the Porcupine District, Ontario; the extremely heavy sulfide sulfur found |  | | Book | | work, ranging from the group of fellow workers in Zimbabwe (M.J. Bickle, A. Martin, J.L. Orpen, J.F. Wilson)...debt to those geologists who have worked for the Zimbabwe Geological Survey and its predecessors over the...Special Publication of the Geological Society of Zimbabwe, R.P. Foster (ed.), by permission of A.A. Balkema...Surv. Bull. No. 67 by permission of the Director, Zimbabwe Geological Survey; Figure 6.3 reproduced from...'The mafic and ultramafic rocks of the Belingwe Greenstone Belt, Rhodesia', 1. Petrol. 18, 1977 by permission |  | | Report (issue) | | resources and mine production by geologic deposit type. . . 5. Distribution of cobalt resources and mine and metal...TABLES Page TABlE 1. 2. 3. 4. 5. 6. World cobalt mine production 1977-83................................1983................ v S 6 9 10 13 14 16 8. Mine production of cobalt in 1983 by geologic deposit...production of cobalt-in-ore, 189~1982.......... Mine production of cobalt in 1983 by economic class of...example those of New Caledonia or the Sudbury district (Canada), have made little effort to evaluate |  | | Journal (article/letter/editorial) | | the Main Sulfide Zone (MSZ) of the Great Dyke, Zimbabwe—see Maier (2005) for a summary of global occurrences...particularly in tectonized settings (Archean greenstone belts; (Lesher and Barnes 2009)). However, the...cratons include the Kaapvaal (mainly PGE deposits), Zimbabwe (Ni–Cu and PGE), Yilgarn (Ni–Cu only), Superior...southern and central Africa, including the Kaapvaal, Zimbabwe, Tanzania and Congo cratons; and North America...world PGE reserves (Bushveld—Kaapvaal, Great Dyke—Zimbabwe). Other large 844 Miner Deposita (2011) 46:841–857 |  | | Journal (article/letter/editorial) | | variousrocksand compounds; namely:Pure powdere.d CaCOa,greenstone, whitemarble,lime mudstone, quartzite,carbonaceous... 464 JOSEPH E. A. KANIA. The rocks of the district are Culm (lower-Carboniferous) slatesintruded...slate with sulphides. Hidden Creek Mine, Anyox, B.C.47 This mine,duringthe last few years,averagedaroundoneand... and.I7 oz. Ag perton. The total production(the mine closedpermanentlyduring I935) was aroundtwenty-twomillion...Trans.,vol. 22, pp. x35-I54, I92o. Bancroft,J. A.: Mine Reporton the Geologyand Ore Depositsof the AnyoxMap |  | | Journal (article/letter/editorial) | | at her maximum speed. The main armament of the Empress will con sist of four 67 ton breechloading guns...between these weapon8 and those to be carried by the Empress of India is very marked. The projectile fired from...The projectile fired from the 67 ton guns of the Empress of India will have much less pene trating power...that would defy the attack of the guns of the Empress. It should be said, however, that the heavy artillery...must be cut at this point is partly serpentine greenstone, partly chrome iron ore, and is intensely hard |  | Lécuyer, Christophe, Fourel, François, Blamey, Nigel, Brand, Uwe, Fralick, Philip (2020) δ2H of water from fluid inclusions in Proterozoic halite: Evidence for a deuterium-depleted hydrosphere?. Chemical Geology, 541. 119583 doi:10.1016/j.chemgeo.2020.119583 | Journal (article/letter/editorial) | | hydrothermally-altered past oceanic rocks (ophiolites, re greenstone belts) are tricky to interpret as they result...We studied halite samples from the Lancer 1 and Empress 1A drill cores located close to each other in the...(1999) described the sedimentary succession at Empress-1A, it is made of evaporites such as gypsum, anhydrite...values measured in 16 Journal Pre-proof Archean greenstone belts are also compatible with an Archean hydrosphere...Ga old altered komatiites from the Barberton Greenstone Belt, South Africa, whereas Kyser et al. (1999) |
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