 | | 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 |  | | Journal (article/letter/editorial) | | Nickeliferous Archean Madziwa Igneous Complex, Northern Zimbabwe: Petrological Evolution, Magmatic Architecture... am bia 30°E 32°E 100 km Fig.2 Eo M P Zimbabwe craton E Harare Mr Mutare 19°S Bulawayo ...Introduction The Madziwa Igneous Complex in northern Zimbabwe comprises a regional group of nickeliferous, mafic-ultramafic...about 12 million tons of low-grade, cupriferous, nickel sulfide ore were produced from several deposits...principal causal role in sulfide segregation at Madziwa mine and the camp was later cited as a type-example of |  | | Journal (issue) | | Geological Society of Zimbabwe G S Z Newsletter October 2016 No. 3 of 3 of 2016 Mesas and Buttes...2016 and then led a two-day field trip to the “Nickel laterite deposits of the Northern part of the Great...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 |  | | Journal (issue) | | Geological Society of Zimbabwe Newsletter February, 2009 Geological Society of Zimbabwe G Z S Newsletter...across the Perseverance Nickel Belt, Chakari – Mike Kellow THE GEOLOGICAL SOCIETY OF ZIMBABWE, P.O. BOX...1719, CAUSEWAY, HARARE Geological Society of Zimbabwe Newsletter February, 2009 Contents EDITORIAL... 4 The Indigenisation of the Mining Sector in Zimbabwe, A Reality Check and Practical Perspective .……...9 Open Pit Operations and Grade Control at Ngezi Mine ...…………………………………….. 9 Use of a Niton XRF instrument |  | Fiorentini, M., Beresford, S., Barley, M., Duuring, P., Bekker, A., Rosengren, N., Cas, R., Hronsky, J. (2012) District to Camp Controls on the Genesis of Komatiite-Hosted Nickel Sulfide Deposits, Agnew-Wiluna Greenstone Belt, Western Australia: Insights from the Multiple Sulfur Isotopes. Economic Geology, 107 (5) 781-796 doi:10.2113/econgeo.107.5.781 | Journal (article/letter/editorial) | | 107, pp. 781–796 District to Camp Controls on the Genesis of Komatiite-Hosted Nickel Sulfide Deposits...4 Western Mining Services (Australia) Pty Ltd, West Perth, WA 6005, Australia and Centre for Exploration...Western Australia is the largest komatiite-hosted nickel sulfide belt in the world and contains two world-class...Ni-Cu-(PGE) deposits, with specific focus on camp to district controls. We apply multiple sulfur isotopes to...can be utilized in exploration at the deposit to district scales. At the deposit scale, the spatial pattern |  | | Journal (article/letter/editorial) | | Komatiite-Associated Nickel Sulfide Deposits Caroline S. Perring† BHP Billiton Nickel West, 125 St George’s...Australia and hosts the giant Perseverance komatiite-associated nickel sulfide deposit. At in excess...over a strike length of 20 km adjacent to the Perseverance fault on the eastern margin of the belt. In...This is illustrated with case studies of the Perseverance, Venus, Rocky’s Reward, Harmony, and Sir Lancelot...Kalgoorlie terrane hosts numerous nickel camps, including the Kambalda nickel camp, and some of the world’s |  | | Journal (issue) | | Geological Society of Zimbabwe G Z S Newsletter June 2013 The hand of Tom Blenkinsop – movement indicators...Society of Zimbabwe, P.O. Box CY 1719, Causeway, Harare Geological Society of Zimbabwe Newsletter ...….. 12 NEWS Geology Department, University of Zimbabwe ……………………………….. Geological Survey Department ………………………………………………...debeer@cadline.co.zw 2 Geological Society of Zimbabwe Newsletter June, 2013 Editorial Welcome to the...towards Zimbabwe Geology; and also to Luckmore Chiteshe for his winning project at the Zimbabwe School |  | | Journal (article/letter/editorial) | | The igneous contacts dip more shallowly to the west and describe a W-facing wedge of olivine-cumulate...deposits of either type, these being the type 1 Perseverance deposit at Leinster with ~1.2 Mt contained Ni...exploration effort by several different companies since nickel mineralization was first identified at Mount Keith...and this has been continued by BHP Billiton Nickel West and extended to the regional scale. The results...Kilkenny Fault Leinster study area Perseverance Perseverance Fault Weebo Bore 50km Fig. 1. Regional |  | Lambert, D. D., Foster, J. G., Frick, L. R., Hoatson, D. M., Purvis, A. C. (1998) Application of the Re‐Os isotopic system to the study of Precambrian magmatic sulfide deposits of Western Australia. Australian Journal of Earth Sciences, 45 (2) 265-284 doi:10.1080/08120099808728386 | Journal (article/letter/editorial) | | b Western Mining Corporation Limited, Kambalda Nickel Mines, Kambalda, WA, 6442, Australia c Australian...Australia. Western Mining Corporation Limited, Kambalda Nickel Mines, Kambalda, WA 6442, Australia. 3 Australian...some disseminated ore samples from the 2.7 Ga Perseverance deposit (Yilgarn Craton). We attribute this...Kambalda as well as olivine-sulfide cumulates from Perseverance and Mt Keith yield a magmatic Re-Os isochron...by which the Archaean komatiites at Kambalda, Perseverance and Mt Keith achieved sulfide saturation. However |  | | Journal (issue) | | Geological Society of Zimbabwe G Z S Newsletter February 2017 No. 1 of 3 of 2017 The last great...Society of Zimbabwe, P.O. Box CY 1719, Causeway, Harare Geological Society of Zimbabwe Newsletter ...collision for a Neoarcaean Limpopo orogen and Zimbabwe Craton since 2.75-2.74Ga ……… A field trip to the...11 12 NEWS Geology Department, University of Zimbabwe – Maideyi Meck …………… The Professor Tom Blenkinsop...………………………………... 13 16 17 18 GEOLOGICAL SOCIETY OF ZIMBABWE - AGM ……………………….. 20 RESEARCH FUNDING OPPORTUNITIES |  | | Journal (article/letter/editorial) | | ARTICLE Thermomechanical erosion at the Alexo Mine, Abitibi greenstone belt, Ontario: implications... Sudbury, ON P3E 6B5, Canada P. C. Davis First Nickel Inc, 206-120 Front Street East, Toronto, ON M5A...et al. (1999). Section ES (eastern section: Alexo Mine) is the location of the stratigraphic column in...penetratively deformed. Until 2001, most of the mine horizon remained covered by quaternary glacial deposits...water-filled trench and mine shaft. However, between 2001 and 2003, the mine area was mechanically and |  | | Journal (article/letter/editorial) | | relationship is also seen further south, where the Perseverance ultramafic complex consists of a thick central...dunite bodies. The Waiter Williams Formation, in the west-central part of the Norseman-Wiluna Belt, is a very...to lower lava flow rates. Field evidence from Perseverance, and the general geometry of the dunite lenses...Australia, 6076; ** M.P.I. Pty. Ltd., 1 Walker Ave., West Perth, Western Australia, 6005. scribe these cumulate-dominated...developing exploration models for komatiite-hosted nickel sulphide deposits. We integrate these results, |  | | Journal (article/letter/editorial) | | mineralised and barren komatiites from the Perseverance nickel deposit, Western Australia S.J. Barnes a...Abstract The Perseverance (formerly known as Agnew) and the neighbouring Rocky's Reward nickel deposits are...crystal tufts. The deposits are overlain by the Perseverance Ultramafic Complex, which consists of a central...olivine fractionation. (2) Samples from the Perseverance Mine (mineralised and basal flows), from Rocky's...from unmineralised flows at the base of the Perseverance Ultramafic Complex all show evidence for LREE |  | | Journal (article/letter/editorial) | | INTROD U CTION S. J. Barnes Introduction to nickel sulfide orebodies and komatiites of the Black Swan...Springer-Verlag 2004 Abstract The Black Swan district, 70 km north east of Kalgoorlie in the Archaean...Western Australia, hosts massive and disseminated nickel sulfide orebodies associated with komatiites. The...important clues as to the origin of komatiite-hosted nickel ores. The series of papers that follow report an...bodies. Nickel sulfide deposits of the Norseman–Wiluna Belt, Western Australia The nickel sulfide deposits |  | | Journal (article/letter/editorial) | | Modification of the Komatiite-Associated Harmony Nickel Sulfide Deposit, Leinster, Western Australia P...Victoria 3800, Australia Abstract The Harmony nickel sulfide deposit (3.2 Mt of ore) is situated along...Rocky’s Reward (15.9 Mt) and Perseverance (50.7 Mt) deposits. The mine stratigraphy trends north-nor...north-northwest–south-southeast, dips moderately (30°–80°) to the west, is overturned, and metamorphosed to middleamphibolite...kbars). Stratigraphic footwall units to the west of the nickel-bearing komatiite include ca. 2720 to 2725 |  | | Journal (article/letter/editorial) | | syngenetic models has been debated. Districtscale and mine-scale controls on gold localization are normally...emphasis on the genesis of komatiite-associated nickel deposits and gold deposits. He is currently Associate...is necessary to integrate data from the mine and ore district (camp) scale with those from the regional...of ore fluid; (3) a genetic model that best fits mine-scale data; (4) the source of ore components; (5)...less weathered greenstone terranes (e.g. Canada, Zimbabwe), although marie and BIF hosts are less dominant |  | | Journal (article/letter/editorial) | | enrichment in Fe3+, TiO2, V2O5, MnO, CoO and ZnO. Nickel trends depend on sulphide content. These trends...(formerly Selukwe) massive chromitite deposits of Zimbabwe (Cotterill, 1969, 1979), where chromitite seams...flow sequences with spinifex textures, as at Perseverance and Mt Keith (Barnes et al., 1988b; Hill et...1994, No. 2057) and unpublished CSIRO data; Perseverance (Barnes et al., 1988b, No. 99); Mt Clifford...analyses of internal standard (see Appendix B). Nickel also shows contrasting trends between thin flows |  | | Journal (article/letter/editorial) | | of komatiites can be useful in exploration for nickel sulfides in two distinct ways: indirectly, through...and ratios of whole rock Mg, Fe, Ni, Cr and Ti. Nickel depletion can be recognised in some cases of large...standing goal of research on komatiite-associated nickel sulfide deposits has been the development of reliable...for context. The genesis of komatiite-associated nickel sulfide deposits has been a controversial topic...applied to many other deposits and camps, notably Perseverance (Barnes et al., 1995), the Forrestania deposits |  | Rosengren, N. M., Grguric, B. A., Beresford, S. W., Fiorentini, M. L., Cas, R. A. F. (2007) Internal stratigraphic architecture of the komatiitic dunite-hosted MKD5 disseminated nickel sulfide deposit, Mount Keith Domain, Agnew-Wiluna Greenstone Belt, Western Australia. Mineralium Deposita, 42 (8) 821-845 doi:10.1007/s00126-007-0139-1 | Journal (article/letter/editorial) | | the komatiitic dunite-hosted MKD5 disseminated nickel sulfide deposit, Mount Keith Domain, Agnew-Wiluna...2007 # Springer-Verlag 2007 Abstract The MKD5 nickel deposit is hosted by the Mount Keith Ultramafic...the complex, contains the bulk of disseminated nickel sulfide and is dominated by coarse adcumulate olivine...Lightfoot Keywords Komatiite . Dunite . Archaean . Nickel-sulfide . Mount Keith . Australia N. M. Rosengren...largest komatiite nickel-sulfide (NiS) deposits in the world, such as Mount Keith, Perseverance, and Six Mile |  | | Journal (article/letter/editorial) | | Late Archean Reliance Komatiitic Event in the Zimbabwe Craton––Magmatic Architecture, Physical Volcanology...PRENDERGAST†,* 1 Carson Close, Greendale, Harare, Zimbabwe Abstract The widespread komatiitic Reliance lithostratigraphic...deep-water, basinal facies in the north and west parts of the Zimbabwe craton to a generally sulfide poor, shallow-water...barren, granitoid-greenstone crust in the north and west, and south and east, respectively. The sills and...of which five are well preserved in the north and west, and three in the south and east parts of the craton |  | | Journal (article/letter/editorial) | | EconomicGeology Vol. 83, 1988, pp. 524-536 The Agnew Nickel Deposit, Western Australia:Part I. Structure and... the geologyof the deposit,we concludethat the nickel sulfidemineralizationis hostedby komatiiteflowswhich...associateddunitc body, which is itself extrusive. Nickel sulfidemineralizationis hostedby a suiteof metamorphosed...in the countryrock. At the northernlimit of the mine area, the baseof the dunite is separatedfrom the...of felsicvolcanic rocks.At the southernlimit of mine development,the dunite directly overliesthe matrix |  | | Journal (article/letter/editorial) | | marked spatial association between known magmatic nickel sulfides and 27 particular komatiite facies....komatiite LIP. Facies that have a low potential for nickel sulfide 32 mineralisation are sheet-like bodies...35 allowing no interaction with the substrate. Nickel-cobalt laterite deposits are associated with 36...cumulates, Ni-Cu-Co-PGE sulfide, 40 magmatic sulfide, nickel-cobalt laterite 41 1. Introduction 42 43 Komatiites...Australia (Figure 1), where they host the third largest nickel sulfide province 47 in the world, by pre-mining |  | | Journal (article/letter/editorial) | | 681–694 Komatiite-hosted Hunters Road nickel deposit, central Zimbabwe: physical volcanology and sulfide...Carson Close, Greendale, Harare, Zimbabwe (marprend@hotmail.com). The nickel sulfide-bearing Main Flow at...origin, which is 200 m deep and at least 800 m wide. Nickel sulfide mineralisation is disseminated, texturally...confined to the meso- to adcumulate, the highest nickel grades being located towards the top. Large floor-rock...Archaean, craton, komatiites, nickel sulfides, volcanology, xenoliths, Zimbabwe. INTRODUCTION GEOLOGICAL |  | | Journal (article/letter/editorial) | | 681–694 Komatiite-hosted Hunters Road nickel deposit, central Zimbabwe: physical volcanology and sulfide...Carson Close, Greendale, Harare, Zimbabwe (marprend@hotmail.com). The nickel sulfide-bearing Main Flow at...origin, which is 200 m deep and at least 800 m wide. Nickel sulfide mineralisation is disseminated, texturally...confined to the meso- to adcumulate, the highest nickel grades being located towards the top. Large floor-rock...Archaean, craton, komatiites, nickel sulfides, volcanology, xenoliths, Zimbabwe. INTRODUCTION GEOLOGICAL |  | | Journal (article/letter/editorial) | | KOMATIITIC DUNITE-HOSTED MOUNT KEITH DISSEMINATED NICKEL SULFIDE DEPOSIT, WESTERN AUSTRALIA N. M. ROSENGREN...University, Clayton, Australia 3800 Abstract The MKD5 nickel deposit at Mount Keith is hosted within the Mount...terranes. Examples include the Mount Keith, Perseverance, and Six Mile Well Complexes of the Yilgarn...(Eckstrand, 1975; Duke, 1986), and Hunters Road, Zimbabwe (Prendergast, 2001). All of these bodies host...been mined since 1994, is currently the largest nickel producer in Australia. These low-grade deposits |
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