 | | 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...of the Zimbabwe craton to a generally sulfide poor, shallow-water, platformal facies in the south and east...granitoid-greenstone crust in the north and west, and south and east, respectively. The sills and flow fields...preserved in the north and west, and three in the south and east parts of the craton. The Reliance sills |  | Hofmann, Axel, Bekker, Andrey, Dirks, Paul, Gueguen, Bleuenn, Rumble, Doug, Rouxel, Olivier J. (2014) Comparing orthomagmatic and hydrothermal mineralization models for komatiite-hosted nickel deposits in Zimbabwe using multiple-sulfur, iron, and nickel isotope data. Mineralium Deposita, 49 (1) 75-100 doi:10.1007/s00126-013-0476-1 | Journal (article/letter/editorial) | | models for komatiite-hosted nickel deposits in Zimbabwe using multiple-sulfur, iron, and nickel isotope...Springer-Verlag Berlin Heidelberg 2013 Abstract Trojan and Shangani mines are low-grade (<0.8 % Ni), komatiite-hosted...ca. 2.7 Ga volcano-sedimentary sequences of the Zimbabwe craton. At both mines, nickel sulfide mineralization...metasomatic overprints in both the Trojan and Shangani deposits make it difficult to ascertain if sulfide...test these competing models. Massive ores at Shangani Mine show mass-dependent fractionation of sulfur |  | Viljoen, M. J., Bernasconi, A., van Coller, N., Kinloch, E., Viljoen, R. P. (1976) The geology of the Shangani nickel deposit, Rhodesia. Economic Geology, 71 (1) 76-95 doi:10.2113/gsecongeo.71.1.76 | Journal (article/letter/editorial) | | part of the lowermost (Sebakwian) group of the Shangani greenstonebelt. The mineralized body takes the...have THe. Shangani nickel deposit representsone of been collectedfrom these workings. The mine is being...activities,and as such is virtually uniquein Rho- mine shouldbe aboutof 20 years. The ore reserve of the...granite-greenstonecraton in the Regional Geology of the Shangani northernpart of the Shanganigreenstonebelt some...explorationprogramby a field team of the JohanThe Shangani greenstonebelt representsone of nesburgConsolidated |  | 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) | | attenuated portion of the AWB, approximately 80 km south of Wiluna (Fig. 1). In the Mount Keith area, the...be traced 30 km north to Honeymoon Well and 9 km south to the Cliffs deposit (Fig. 1). The Monument and...3–5%. The typical sulfide mineralogy comprises pentlandite, pyrrhotite, pyrite and minor millerite, hypogene...paper was conducted synproduction with the MKD5 mine operation and benefited from access to a significantly...significantly larger database of drillcore and mine-related information in comparison to most previous studies |  | | Journal (article/letter/editorial) | | komatiitehosted sulfides from three ore deposits in Zimbabwe were found to be inconsistent with the incomplete...the three Archean komatiite-hosted deposits in Zimbabwe, and I thank Li and Barnes (1995) for their new...together with data for magmatic sulfides from the Alexo mine, Ontario (Barnes and Naldrett, 1986) and Lunnon...komatiite-hosted deposits and the main ore at the Strathcona mine is not a false value. It is the S content of the...sample consisting of about 50% pyrrhotite, 20% pentlandite, 20% chalcopyrite, and 10% pyrite will have a |  | Bekker, A., Grokhovskaya, T. L., Hiebert, R., Sharkov, E. V., Bui, T. H., Stadnek, K. R., Chashchin, V. V., Wing, B. A. (2016) Multiple sulfur isotope and mineralogical constraints on the genesis of Ni-Cu-PGE magmatic sulfide mineralization of the Monchegorsk Igneous Complex, Kola Peninsula, Russia. Mineralium Deposita, 51 (8) 1035-1053 doi:10.1007/s00126-015-0604-1 | Journal (article/letter/editorial) | | mineralization, which in some areas grades with depth to pentlandite-pyrrhotite mineralization (Fig. 2b). In the Mts...diorite-gneisses. The Mt. Nyud is bordered to the south by the Mt. Vuruchuaivench intrusion with strongly...nest nest mineralization, po pyrrhotite, pn pentlandite, py pyrite, cp chalcopyrite, mill millerite,...Ilm ilmenite, Gr graphite, Po pyrrhotite, Pn pentlandite, Ccp chalcopyrite, Py pyrite, Cob cobatite, Mnsh...sulfides (minor chalcopyrite with predominant pentlandite and pyrrhotite), amphibolized pyroxene, and chromite |  | | Report (issue) | | the Federal Republic of Germany, the Republic of South Africa, the United Kingdom, and the United States...the Federal Republic of Germany, the Republic of South Africa, the United Kingdom, and the United States...Mineral Policy Sector (MPS); Gabriele I.C. Schneider, South African Department of Mineral and Energy Affairs...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............................. |  | | 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...American Corporation of South Africa for views of Wankie Colliery and the Trojan nickel mine, and to the Photographic...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 |  | | Report (issue) | | the Federal Republic of Germany, the Republic of South Africa, the United Kingdom, and the United States...the Federal Republic of Germany, the Republic of South Africa, the United Kingdom, and the United States...the Federal Republic of Germany, the Republic of South Africa, the United Kingdom, and the United States...Text Products Section, U.S. Geological Survey, 604 South Pickett Street, Alexandria, VA 22304-4658 FOREWORD...P. Foose (chief compiler), USGS; Ian Goldberg, South African Department of Mineral and Energy Affairs |  | McCallum, M. E., Loucks, R. R., Carlson, R. R., Cooley, E. F., Doerge, T. A. (1976) Platinum metals associated with hydrothermal copper ores of the New Rambler Mine, Medicine Bow Mountains, Wyoming. Economic Geology, 71 (7) 1429-1450 doi:10.2113/gsecongeo.71.7.1429 | Journal (article/letter/editorial) | | mainlyof pyrite,with magnetite, pyrrhotite, pentlandite, andchalcopyrite as accessories; (2) and (3)...intrusive rocks elsewherein the region. mining district ,of the Medicine Bow Mountains in southeastern...Wyoming, showing the location of the New Rambler mine with respectto the Mullen CreekNash Fork shear zone...activeintermittently through Laramide time. Shear zone rocks the mine is a mylonitic biotite-epidote-plagioclase comprisea...mafic plutoniccomplexesand ortho- prevalentin the mine vicinity. Most abundantare metadioriteand metagabamphibolites |  | | Journal (article/letter/editorial) | | although the Cu-rich ores of the Noril’sk-Talnakh district, Russia could have evolved through a complex sequence...Transkei (LIGHTFOOT et al., 1984), Noril’sk-Talnakh district, Russia (DUZHIKOV and DISTLER, 1992; CZAMANSKE...sulfide ores and mineral assemblages of the Sudbury district, Canada (NALDRETT et al., 1982; LI et al., 1992)...liquids; 1 is Epoch, 2 is Shangani, 3 is Trojan deposit: Sudbury district and Insizwa complex-solid squares...main ore from the Strathcona mine and komatiitehosted ore from the Epoch mine with 52.0 at% S to give an |  | | Journal (article/letter/editorial) | | Australia Ave, Western Australia Shangani, Zimbabwe Epoch, Zimbabwe Tronjan, Zimbabwe Ungava, northern Quebec...C1 c h o n d r i t e s dunite, Urals India and South Africa U.S.S.R. basanites basal z o n e chromitites...Stillwater Complex, U.S.A., and the Bushveld Complex, South Africa, and an understanding of the PGE geochemical...Ni, Co and S, assuming that the sulphides are pentlandite, chalcopyrite and pyrrhotite. Since all of the...komatiites from Canada, Western Australia and Zimbabwe, the Os and Ir portion of the curve is flat, then |  | | Journal (article/letter/editorial) | | ores from the komatiite related deposits Epoch, Shangani and Trojan, to challenge the interpretation that...(13.3 vs 0.35 wt% at Epoch, 5.25 vs 0.39 wt% at Shangani and 1.49 vs 0.52 wt% at Trojan (Naldrett, personal...platinum group element concentrations in the Alexo mine komatiite, Abitibi greenstone belt, Northern Ontario...Distribution of platinoids between pyrrhotite and pentlandite in crystallization of a sulfide melt. Geochem...gold, and copper-rich stringers at the Strathcona mine, Sudbury: their enrichment by fractionation of a |  | | Journal (article/letter/editorial) | | komatiites from several localities (Fig. 2), including Zimbabwe (Hofmann et al, 2014), Australia (Bekker et al...Δ33S (‰VCDT) 0.5 Canada Alexo Hart Zimbabwe 0 Trojan Shangani Finland Vaara -0.5 -1 -1.5 -6 ...al. (2009), Fiorentini et al. (2012a); Trojan, Shangani = Hofmann et al. (2014); Hart = Hiebert et al...Rosengren, N., Cas, R., and Hronsky, J., 2012a, District to camp controls on the genesis of komatiite-hosted...xenoliths from the Bultfontein kimberlite (Kimberley, South Africa): Contribution from subducted sediments and |  | | Journal (issue) | | Geological Society of Zimbabwe Newsletter February, 2009 Geological Society of Zimbabwe G Z S Newsletter...SOCIETY OF ZIMBABWE, P.O. BOX CY 1719, CAUSEWAY, HARARE Geological Society of Zimbabwe Newsletter ... 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...………. 15 History of Oil and Gas Exploration in Zimbabwe ……………………………………………. 15 Archean Komatiitic Sill-hosted |  | | Journal (article/letter/editorial) | | chromitite, and Platreef of the Bushveld Complex, South Africa, the JM Reef of the Stillwater Complex, Montana...the Main Sulfide Zone (MSZ) of the Great Dyke, Zimbabwe—see Maier (2005) for a summary of global occurrences...Deposita (2011) 46:841–857 by sulfides (pyrrhotite–pentlandite–chalcopyrite), except in some chromitite reefs...are however similar, consisting of pyrrhotite, pentlandite (which may be dominant in komatiitic ores) and...cratons include the Kaapvaal (mainly PGE deposits), Zimbabwe (Ni–Cu and PGE), Yilgarn (Ni–Cu only), Superior |  | | Report (issue) | | the Federal Republic of Germany, the Republic of South Africa, the United Kingdom, and the United States...the Federal Republic of Germany, the Republic of South Africa, the United Kingdom, and the United States...the Federal Republic of Germany, the Republic of South Africa, the United Kingdom, and the United States...Geological Survey of Canada; Gabriele I. C. Schneider, South African Department of Mineral and Energy Affairs...platinum-group metals. The following three discoveries in South Africa, Australia, and Botswana were reported too |  | | Report (issue) | | the Rhodesian Branch of the Geological Society of South Africa and held at the University o, Rhodesia, Salisbury...Mines (Pvt.) Limited Anglo Amt:rican Corporation of South Africa Limited Corsyn Consolidated ~lines Limited... A. STI DOLPII The Geology of the Rcd\\ing Gold Mine. Pcnhalonga.L'mtaliDi.trict. Rhodc:,ia · M. H,\RRISO'I...1tcand ,\,-..)c1JtcdRock, of the: ~tonJrch Anumon, Mine. l\lurchison Range. J\orth bi-tern lr,tn-1a.il ...\n11mon>On,..,of the 167 Murchi,on Grccn,tonc Belt, South \fn,.1 . . . . . • • . . • • • • • • • • • • • R |  | | Journal (article/letter/editorial) | | Africa. of Botswana, the northeasternsegment of South The purposes of this paperare, briefly,to consider...16 BUCHWA-MWEZA + + 17 GHOKO ++.+++++4 18 SHANGANI +++.++++- .+++•+++++++* *++7+++**+ 19 BULAWA¾O-9UBI...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 |  | Konnunaho, J., Hanski, E., Wing, B., Bekker, A., Lukkari, S., Halkoaho, T. (2016) The Hietaharju PGE-enriched komatiite-hosted sulfide deposit in the Archean Suomussalmi greenstone belt, eastern Finland. Ore Geology Reviews, 72. 641-658 doi:10.1016/j.oregeorev.2015.08.022 | Journal (article/letter/editorial) | | Pyrrhotite (both hexagonal and monoclinic), pentlandite and chalcopyrite are the most abundant ore minerals...these minerals. According to Kojonen (1981), pentlandite occurs in massive ores in the forms of: 1) subhedral...assemblage containing AC CE P pyrrhotite, pentlandite, and chalcopyrite. Strong CO2 metasomatic alteration...to the sulfides of deposits from the Kambalda district among the komatiite-hosted sulfide deposits (Bekker...magmatic sulfide assemblage (i.e., pyrrhotite-pentlandite-chalcopyrite), but has possibly remobilized and |  | | Journal (volume) | | concentrated in sampIes rich in chaIcopyrite and pentlandite h ave Ptl(Pt + Pd) ratio of 0.255-0.283 between...minerals are hex agonal and monoclinic pyrrhotite, pentlandite, violarite, chalcopyrite, pyrite and m agnetite... .. . ............ ... . ................ . Pentlandite ......... .. . . ..............................contained pyrite and pyrrhotiJte along with minor pentlandite and chalcopyrite. In spring 1960 a farmer, Mr...granite-greenstone terrain in Barberton Mountain Land , South Africa. Volcanogenic structures were found in the |  | | Report (issue) | | Platinum-group element mineralization of the Great Dyke, Zimbabwe. In The Geology, Geochemistry, Mineralogy and...International Platinum Symposium in Rustenburg, Republic of South Africa. The abstract volume for this meeting contained...mineralization, in countries like the Republic of South Africa, Canada, and Finland. Over the last five...platinum-group minerals (PGM) beginning with a South African publication (Cabri, 1972) and culminating...of PGE deposits, ranging from the very important South African deposits to less well-developed PGE mineralization |  | | Book | | viii Marcasite Millerite Molybdenite Niccolite Pentlandite Platinum Proustite Psilomelane Pyrargyrite Pyrite...Tetrahedrite Green Yellow Tetrahedrite Pyrite, pentlandite (in comparison with adjacent minerals) 3. ...Light grey Brown-grey Native copper Native gold Pentlandite Galena Pyrite, native silver Native platinum...within it. Samples which have been collected in a mine or open pit exhibit more abundant reflections as...Lollingite Arsenopyrite Cobaltite Bismuthinite Pentlandite Copper Stibnite Molybdenite Galena Cubanite Boulangerite |  | | Book | | 4.1. Mafic dyke swarms in the Kaapvaal Craton, South Africa 189 3.4.2. The Mackenzie dyke swarm, Canada...intraplate magmatism around the Vredefort Dome, South Africa 6.3.4. Metamorphism and fluid generation;...Dyke, Zimbabwe 8.2.2. The Bushveld lgneous Complex, South Africa 8.2.3. Molopo Farms Complex, South Africa...of Primary Irrdustries and Resources, Adelaide, South Australia Acknowledgments I am indebted to several...mesothermallodes, such as those of Pilgrim's Rest in South Africa). This book consists of two parts. Part One |  | | Book | | knowledge and understanding of the Archaean geology of South India. Among his pioneering works are studies of...well-preserved Archaean terrains, such as in the South Indian shield, and to build up and test models...University of Jan Smuts Avenue, Johannesburg 2001, South F.W.U. Appel, The Geological Survey of Greenland...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 |
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