 | | Journal (issue) | | Geological Society of Zimbabwe G Z S Newsletter October 2013 Victoria Falls from on high. Photo:...Society of Zimbabwe, P.O. Box CY 1719, Causeway, Harare Geological Society of Zimbabwe Newsletter ...AND REPORTS The first record of Native Silver in Zimbabwe ................................................4 5 5 NEWS Geology Department, University of Zimbabwe ……………………………….. 7 Mennell Society Field Trip, June...debeer@cadline.co.zw 2 Geological Society of Zimbabwe Newsletter October, 2013 Editorial Not much |  | | 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...Marginal Zone Central Zone 46 47 48 51 The Zambezi Metamorphic Belt . Western Section Central Section Eastern...near Salisbury. facing page 23 IV Trojan Nickel Mine, near Bindura. facing page 33 V The Great Dyke |  | Oberthür, 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) | | in the Mazowe area, Harare-Bindura-Shamva greenstone belt, Zimbabwe: II. Genetic relationships deduced...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...arsenopyrite-rich ores, and Stori's Golden Shaft and Alice mine, both in metabasalts, work sul®de-poor quartz veins...Department, University of Zimbabwe, P.O. Box MP 167, Mount Pleasant, Harare, Zimbabwe U.F. Hein Institut fuÈr |  | | Journal (article/letter/editorial) | | assemblages at the Viceroy Mine, Harare-Bindura-Shamva greenstone belt, Zimbabwe T. OBERTHÜR* AND T. W...2008] ABSTR ACT Gold mineralization at the Viceroy Mine is hosted in extensional veins in steep shear zones...liquid/melt-collecting mechanism was probably active at Viceroy Mine, where the distinct Au-Bi-TeS assemblage either...Archaean, Viceroy and Mazowe Mines, Zimbabwe, Passagem de Mariana Mine, Brazil. Introduction FOR a long...deposits. Well known examples are the classic mining district and type area of many telluride minerals, the |  | | Journal (issue) | | Geological Society of Zimbabwe G S Z Newsletter October 2017 No. 3 of 3 of 2017 A composite section...showing the stratigraphy of the Mid-Zambezi Basin in Zimbabwe. The position of the Vulcanodon karibaensis type...Society of Zimbabwe, P.O. Box CY 1719, Causeway, Harare Geological Society of Zimbabwe Newsletter ...……………………………………………... NEWS Geology Department, University of Zimbabwe – Maideyi Meck …………… The Mennell Geological Society...Campus – Antony Mamuse ……………………….. News from the Zimbabwe School of Mines – Maideyi Meck ………………… Geological |  | | Journal (article/letter/editorial) | | thrusting along the northeastern margin of the Zimbabwe craton Axel Hofmann School of Geosciences, University...Department of Geology, University of Zimbabwe, P.O. Box MP 167, Harare, Zimbabwe e-mail: hofmannaxel@hotmail.com...Chirwa dome in northeast Zimbabwe is situated at the boundary between the Zimbabwe craton and Archaean gneisses...juxtaposed against a greenstone terrain of the Zimbabwe craton. This active thrust stack was intruded...deformation. Our data indicate that while the central Zimbabwe craton already behaved as a stable crustal |  | 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) | | Fluid Evolution in the Kwekwe District, Midlands Greenstone Belt, Zimbabwe: A Combined Geochemical, Mineralogical...Kwekwe district comprises the central part of the Archean Midlands greenstone belt of Zimbabwe and represents...stage 3. Four gold deposits within the Kwekwe district have been studied. The Primrose and Globe and...DECADE, the Archean Midlands greenstone belt of Zimbabwe has been subject to several research and exploration...exploration in the central part of the Midlands greenstone belt, the Kwekwe district, has led to the discovery |  | | Report (issue) | | ZIMBABWE GEOLOGICAL SURVEY BULLETIN No. 90 The Erosion Surfaces of Zimbabwe L. A. LISTER, M.Sc., D.Phil...LIBRASÏ ZU - 06.01 Ölungen ïte Cstteilands 72& ZIMBABWE GEOLOGICAL SURVEY BULLETIN No. 90 iSRiC LIBRARY...Wagentngen, The Netherlands The Erosion Surfaces of Zimbabwe L. A. LISTER, M.Sc, D.Phil. ISSUED BY AUTHORITY...the erosion surfaces of Zimbabwe. She has lectured at the University of Zimbabwe since 1963 and this Bulletin...course of this work, it was realized that the high Central Axis is the result solely of being the divide between |  | Bristol, Samantha K., Spry, Paul G., Voudouris, Panagiotis Ch., Melfos, Vasilios, Mathur, Ryan D., Fornadel, Andrew P., Sakellaris, Gregory Aarne (2015) Geochemical and geochronological constraints on the formation of shear-zone hosted Cu–Au–Bi–Te mineralization in the Stanos area, Chalkidiki, northern Greece. Ore Geology Reviews, 66. 266-282 doi:10.1016/j.oregeorev.2014.11.001 | Journal (article/letter/editorial) | | Hercynian Pelite, sandstone, dolomitic limestone, dolomite, schist Chloritic, feldspathic, silicic, biotitic...144–287 °C δ34S: Py and Apy 3.2–6.8‰ Viceroy, Zimbabwe Archean Metabasalt Mineralization in normal...al. (1995), Oberthür and Weiser (2008) Mazowe, Zimbabwe Archean Granodiorite, quartz–feldspar porphyry...mineralized shear zones Qz 1c m e f ancient mine gallery re po -C sp A ive s s ma iss gne...Paragenetic sequence of mineralization in the Stanos district (modified after Voudouris et al., 2013). Mineral |  | | Journal (issue) | | Geological Society of Zimbabwe G S Z Newsletter October 2016 No. 3 of 3 of 2016 Mesas and Buttes...Society of Zimbabwe, P.O. Box CY 1719, Causeway, Harare Geological Society of Zimbabwe Newsletter ...in the Musengezi Subchamber of the Great Dyke, Zimbabwe ... A brief overview of a field trip to the Pongola...17 20 NEWS Geology Department, University of Zimbabwe – Maideyi Meck …………… The Professor Tom Blenkinsop...Blenkinsop UZ Geology Field Trip Fund ………………. Zimbabwe School of Mines News to the Geological Society ………………… |  | | Report (issue) | | ------------3. Nickel deposits in the Sudbury district, Ontario, Canada-----------------------4. Nickel...------------------9. Proportions of total world mine production of nickel accounted for by countries...-------------------------------------10. Nickel mine production in countries having major deposits and...----------------Estimated cumulative and annual mine production of nickel, contained in ore, concentrate...each country having a major nickel deposit or district ---------------------4. By economic class of |  | | Journal (article/letter/editorial) | | gradients in which very low grades typical of the central craton pass into extremely high grades that define...Gatooma-Hartley; (11) Gwanda; (12) Gwelo; (13) Lonely Mine; (14) Lower Gwanda; (15) Makaha; (16) Mashaba; (17)...(22) Salisbury; (23) Selukwe; (24) Shabani; (25) Shamva-Bindura--Mazoe; (26) Sinoia; (27) Sipolilo;(28)...successions are noted, viz. 12 km in the Bulawayo District (Amm, 1940), 24 km at Hunters Road, Gwelo (Macgregor...(south) quartz + epidote + actinolite (north) dolomite + magnesite breunnerite + limonite Calcareous |  | | Report (volume) | | size: an example from the Guanajuato mining district (Central Mexico) Fluid flow and fracture systems SANDERSON...COUPLES, G. D. Carboniferous basin evolution of central Ireland - simulation of structural controls on...regions of Central Iberia are outlined below to illustrate this approach. Quartz veins, Central Portugal...Esquisto Grauvaquico of the Castello Branco region of Central ROBERTS, S., SANDERSON, D. J. & GUMIEL, P. 1999...extraction of ore occurring only at the La Parilla mine [c. 6000 tonnes of Sn (0.2 wt%) and WO3 (0.05wt%)] |  | | 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...gold mineralization in the Kadoma region of the Zimbabwe Midlands. Three papers describe the structures...and cross sections showing the evolution of the central Asian basins. This collection of papers therefore...larger than life, professors in geology, with a central role in guiding the future of research and geological |  | | Journal (volume) | | Minerals Separation Plant at 60 Report Antelope Gold Mine (m.d.) .... 241 Antimony Ores in Rhodesia 131 Aramayo-Francke...moves office to Geneva 196 Areaehap Copper & Sulphur Mine 184 Report Arizona Copper 53 (m.d.) Arsenic. Collecting...Manufactures in Canada 123, 196, 323 Ashanti Gold Mine ol A. M. Matheson (m.d.) Assavs of Complex Tin Ores...System at Inspiration Central American Mines Central Cliili Copper Co Central Chili Copper Chamber of...Borneo Coal in New South Wales Coal in Nigeria Coal -Mine. State, at Lithgow (m.d.) .... (m.d.) 119 1.56 |  | Guastoni, A., Bindi, L., Nestola, F. (2012) Debattistiite, Ag9Hg0.5As6S12Te2, a new Te-bearing sulfosalt from Lengenbach quarry, Binn valley, Switzerland: description and crystal structure. Mineralogical Magazine, 76 (3) 743-750 doi:10.1180/minmag.2012.076.3.21 | Journal (article/letter/editorial) | | n image of debattistiite crystals (bright) in dolomite matrix. 744 A crystal fragment (70650640 mm)...assemblages at the Viceroy Mine, Harare-Bindura-Shamva greenstone belt, Zimbabwe. Mineralogical Magazine |  | Sanislav, Ioan V., Kolling, Sergio L., Brayshaw, Mathew, Cook, Yvonne A., Dirks, Paul H.G.M., Blenkinsop, Thomas G., Mturi, Marwa I., Ruhega, Roger (2015) The geology of the giant Nyankanga gold deposit, Geita Greenstone Belt, Tanzania. Ore Geology Reviews, 69. 1-16 doi:10.1016/j.oregeorev.2015.02.002 | Journal (article/letter/editorial) | | University, Townsville, 4011 QLD, Australia Geita Gold Mine, Geita, P.O. Box 532, Geita Region, Tanzania School...the Dharwar Craton in India, and the Kaapvaal, Zimbabwe and Tanzania Cratons in Africa. Except for gold...directly south of Lake Victoria and forming the central northern part of the outer arc of the Sukumaland...the D6 shear zones. zone (Fig. 2; Iyoda Shear in mine terminology) cuts and displaces the entire ironstone...dominant mineral association is quartz–calcite–dolomite/ankerite–hematite–pyrite–biotite. In diorite, |  | Gebre-Mariam, M., Groves, D. I., McNaughton, N. J., Mikucki, E. J., Vearncombe, J. R. (1993) Archaean Au−Ag mineralisation at Racetrack, near Kalgoorlie, Western Australia: a high crustal-level expression of the Archaean composite lode-gold system. Mineralium Deposita, 28 (6) 375-387 doi:10.1007/bf02431597 | Journal (article/letter/editorial) | | Porphyritic basalt ~ Flow basalt / Fault [~ ~ Gold mine zopo~ z~oo~ / >~+++++iti~ ~ Andesite '~ ...a e r o m a g n e t i c data. Mine geology and structure In the mine environment, the stratigraphy is...with a change in reef style. For example, in the central part of the open pit a 060~ ~ NW fault zone changes...zones, oriented 320-330~ ~ W, are common in the mine environment and, in places, have displaced the ore...This stage is restricted to the western part of the mine area. In many eases, Stage II breccias are rebrecciated |  | Klein, Evandro L., Harris, Chris, Renac, Christophe, Giret, André, Moura, Candido A. V., Fuzikawa, Kazuo (2006) Fluid inclusion and stable isotope (O, H, C, and S) constraints on the genesis of the Serrinha gold deposit, Gurupi Belt, northern Brazil. Mineralium Deposita, 41 (2) 160-178 doi:10.1007/s00126-006-0050-1 | Journal (article/letter/editorial) | | rocks that underwent Fig. 2 Geological map of the central portion of the Gurupi belt in the Serrinha area...and ankerite in the upper level and calcite and dolomite in the lower level. These carbonates are subhedral...quartz-carbonate vein of level 206 m 166 and calcite to dolomite ratio is 1:1. The vein quartz is generally fine-grained...reacted at 25°C (McRea 1950), whereas ankerite and dolomite were reacted at 50°C (Al-Assam et al. 1990). The...calcite (Friedman and O’Neil 1977), 1.01065 for dolomite, and 1.01057 for ankerite (Rosenbaum and Sheppard |  | | Journal (article/letter/editorial) | | br/dnpm/sumarios/zinco-sumario-mineral-2014). The Vazante mine has been in operation since the 1960’s, when it...(Zn2SiO4) deposit in the world and the largest zinc mine in Brazil, with estimated total resources of 40...Brasília Fold Belt (BFB), in the Tocantins Province, Central Brazil. The Brasília Fold Belt is at the eastern...structural and metallogenetic features separated by the central inflexion in proximity to the Rio Escuro region...Morro do Pinheiro Member composed of laminated dolomite with cyanobacterial mats, intercalated with dolarenite |  | | Journal (article/letter/editorial) | | terranes (Cassidy et al. 2006): Narryer, South West, central Youanmi, Kalgoorlie, Kurnalpi, and Burtville. The...minerals are mainly ankerite, with traces of Fe-dolomite, and rare calcite. The Stage II veins have been...Greece Fiji Golden Quadrilateral, Romania Baguio district, Philippines Age 125.3∼116.6 Ma ∼30 to ∼28Ma...Viceroy Mine Harare-Bindura-Shamva greenstone belt, Zimbabwe Mildlands greenstone belt, Zimbabwe Archean...Genetically related Genetically related No Commoner Mine 2.7 Ga Hes, Alt, Ptz, Syl, Mlt, Kos, Clr, Stz |  | Groves, D.I, Goldfarb, R.J, Gebre-Mariam, M, Hagemann, S.G, Robert, F (1998) Orogenic gold deposits: A proposed classification in the context of their crustal distribution and relationship to other gold deposit types. Ore Geology Reviews, 13 (1) 7-27 doi:10.1016/s0169-1368(97)00012-7 | Journal (article/letter/editorial) | | Cambrian sedimentary rocks of the French Massif Central is the world’s largest producer of arsenic ŽGuen...level. Most commonly, carbonates include ankerite, dolomite or calcite; sulfides include pyrite, pyrrhotite...al. Ž1991b., Miller et al. Ž1994. Willow Creek district, southcentral Alaska 66 Late Paleozoic 74–66...Scheiber Ž1996. Muruntau, Uzbekistan and adjacent central Asia deposits Late Carboniferous– Early Permian...Europe 340–310 ŽBohemia Massif.; 300"20 ŽMassif Central. Late Proterozoic– early Paleozoic 360–320 350–340 |  | | Journal (article/letter/editorial) | | BELTS ! SINOIA-SIPOLILO + + 2 MT OARWIN + 3 SHAMVA-SALISBURY 4 MTOKO 5 MIOLANDS 6 MWANESt 7 WEDZA...greenstonebelt, intrusive granites. The Scotia Talc Mine in the halfway betweenthe Great Dyke and the Empress...GeologicalSetting Area and Reference Range Mean Selukwe Peak Mine 52.32-58.41 55.59 Railway Block, Priority 1 Magazine...Africa (o,ol.95 b.y. old) Eastern Bushveld Central Sector Southern Sector 38.9-49.84 43.35-48.17...Prince Mine situated near the of the complex. Tremendous tonnages of inter- King asbestos mine (Fig |  | Kerr, Mitchell J., Hanley, Jacob J., Kontak, Daniel J., Morrison, Gordon G., Petrus, Joseph, Fayek, Mostafa, Zajacz, Zoltán (2018) Evidence of upgrading of gold tenor in an orogenic quartz-carbonate vein system by late magmatic-hydrothermal fluids at the Madrid Deposit, Hope Bay Greenstone Belt, Nunavut, Canada. Geochimica et Cosmochimica Acta, 241. 180-218 doi:10.1016/j.gca.2018.08.030 | Journal (article/letter/editorial) | | northern Canada, which lies in an emerging gold district that is known to have highly variable gold grades...Throughout the HBGB, pervasive ankerite-ferroan dolomite-sericite-pyrite alteration assemblage is commonly...selvages of sericite-carbonate (ankerite, ferroan dolomite) and, where stockwork-type veins are present,...Naartok sub-region of Madrid, secondary quartz-dolomite veins with a brecciated texture overprint mm-...sericite-carbonate (ankerite, magnesite, ferroan dolomite) assemblages with stockwork quartz-carbonate veinlets |  | | Journal (article/letter/editorial) | | a salband or selvedge, or as boudins in banded dolomite (Fig. 3A). Tourmaline pockets refer to tourmaline...0.3 m in thickness. The hangingwall is banded dolomite of the Batatal Formation (Fig. 3A). Imbrications...Mariana mine. The lode is located between quartzite of the Moeda Formation and banded dolomite of the...pumpellyite-actinolite-facies conditions, Sestri-Voltaggio Zone, central Liguria, Italy. Canadian Mineralogist 39, 717–727...mineralization and Fe enrichment in the Itabira district, Minas Gerais, Brazil, at 496 Ma: constraints |
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