 | | Corporate Document | | Kochbulak-Kairagach ore field 9.5.1 Kochbulak deposit 10. SOUTH AFRICA 10.1 Western Deeps 10.2 Fairwiew 10.3 Renco...16 Corinthia 13.17 Edward's Find 13.18 Polaris South 14. Intermediate and felsic igneous host rocks 14...possibly arsenopyrite, tourmaline, chlorite, garnet, scheelite, titanite, rutile and gold. Korpilampi-2 Tourmaline-bearing...mineralisation quartz veins which also contain abundant scheelite. Hand specimen description Sample Description...is >1 km long, 15-30 m wide, parallel with the local lithological units, and dips at 60° to the ENE (Pietikäinen |  | | Report (issue) | | SURVEY OF SOUTH AFRICA COUNCIL FOR GEOSCIENCE GEOLOGICAL SURVEY OF SOUTH AFRICA MINERALOGY OF SOUTH AFRICA:... COUNCIL FOR GEOSCIENCE GEOLOGICAL SURVEY OF SOUTH AFRICA Scientific Editor R.D. Dixon Linguistic and...Council for Geoscience (Geological Survey of South Africa), 280 Pretoria Street, Silverton, Pretoria or........................... 69 5.1 Overview of South African Occurrences ..............................LAYEREDSUITE,BUSHVELDCOMPLEX.... 111 MINERALOGY OF SOUTH AFRICA: TYPE-MINERAL SPECIES AND TYPE-MINERAL NAMES |  | | Book (edition) | | Southern Africa a Collector’s Guide ■Rocks, Minerals and Gemstones of Southern Africa & — - ... T ~ '' .rats en&nes L of Southern Africa A Collector’s Guide - Struik Publishers (an operating...suggestions and advice. Author’s Preface Southern Africa has much to offer the amateur geologist, whatever...best plan is to take local advice wherever you are. 9 In small places try the local police station first...usually helpful and will know it there are any local gem clubs and how to get in touch with them. There |  | | Journal (article/letter/editorial) | | illustrating the nature of Archean volcanismin southern Africa and elsewhereare made available for purposesof...mineralization. The Archean mineralization of southern Africa is briefly compared and contrasted with that of...the easternpart southern Africa. of Botswana, the northeasternsegment of South The purposes of this paperare...paperare, briefly,to consider Africa, and Rhodesia,the shield consistsof two crathe nature and distribution...26 SUTHERLAND 27 RETERSBURG 28 MURCHISON 29 BARBERTON 30 MULDERSDRIF 31 AMALIA • 50 1.00 km LEGEND |  | | Journal (issue) | | Twenty-three, Number Three ® Articles Gold in South Africa ..............................................and this must have introduced him to many other local mineral collectors and possibilities for further...of this typically natrolite covered material for local dealers as well as himself. He used much of this...lent a distinction to his stock of minerals that local dealers found hard to match. During his time with...later years he just purchased from the miners and local dealers. He did not like to be hurried, and drove |  | | Report (issue) | | textures of the massive stibnite ore. A combination of local geochemical aureoles of gold, antimony, and arsenic...producers of this type of deposit are Republic of South Africa, Bolivia, Russia, China, and France. These gold-antimony...within a 20 km long zone in Murchison Range, South Africa. As much as 83 tons of gold were recovered as...incorporated from a series of papers and books on South African, Australian, Yakutian gold-antimony deposits...gold+(locally) pyirhotite+chalcopyrite+ferberite+scheelite; second phase (weak): sphalerite+tetrahedrite+ |  | | Journal (article/letter/editorial) | | are indicated in square brackets: New Consort, South Africa [1–9]: Cuiabá Brazil [10–13]: Ajjanahalli, India...Buddini [28,29], India; Pilgrim’s Rest [30–33], South Africa; Lega Dembi, Ethiopia [34]; Navachab, Namibia...Figure 1. Four deposits are situated in southern Africa, three in India, two in Russia, one in Ethiopia...Lega Dembi Navachab Mindyak Kochkar Awak Mas Barberton Greenstone Belt Rio das Velhas Supergroup (Nova...Ma between the Paleoproterozoic Pilgrim’s Rest district and the Neoproterozoic Lega Dembi and Navachab | | | Journal (issue) | | Mowry Place Tucson, AZ 85741 Articles Gold in South Africa ..............................................and this must have introduced him to many other local mineral collectors and pos sibilities for further...of this typically natrolite covered material for local dealers as well as himself. He used much of this...lent a distinction to his stock of minerals that local dealers found hard to match. During his time with...later years he just purchased from the miners and local dealers. He did not like to be hurried, and drove |  | Agangi, Andrea, Reddy, Steven M., Plavsa, Diana, Fougerouse, Denis, Clark, Chris, Roberts, Malcolm, Johnson, Tim E. (2019) Antimony in rutile as a pathfinder for orogenic gold deposits. Ore Geology Reviews, 106. 1-11 doi:10.1016/j.oregeorev.2019.01.018 | Journal (article/letter/editorial) | | University of Johannesburg, Auckland Park 2006, South Africa 3 Centre for Microscopy Characterisation and...Precambrian terranes, the Capricorn Orogen, the Barberton Greenstone Belt and the Ashanti Belt, all of which...Australia, the Barberton Greenstone Belt in southern Africa, and the Ashanti Belt in western Africa. All areas...(Capricorn Orogen), Sheba and Fairview mines (Barberton Greenstone Belt), and Obuasi (Ashanti Belt). The... 1995). Barberton Greenstone Belt, Sheba and Fairview mines 3 The Palaeoarchaean Barberton Greenstone |  | | Book (edition) | | OF OF SOUTH AFRICA MINES GEOLOGICAL SURVEY MINERAL RESOURCES OF REPUBLIC OF THE SOUTH AFRICA...Second World War, and partly as a result of it, South Africa experienced vast industrial expansion. This...official ‘handbook on the mineral resources of South Africa, it has become necessary to revise, or rather...great diversity and magnitude of South African mineral deposits and local mining operations, the Economic...Chamber of Mines of South Africa with Mr G. H. Grange as co-ordinator, and the South, African mining industry; |  | | Journal (article/letter/editorial) | | UNDERSØGELSE Bulletin No. 156 o ~ Stratabound scheelite and stratiform tourmalinites in the Archaean Malene...conditions. Stream sediment sampling has shown that scheelite occurs in the supracrustal enclaves throughout...stratiform tourmalinites, often with appreciable scheelite, in addition to common accessory tourmaline. The...overgrown with tourmaline during metamorphism. The scheelite and tourmaline are probably syngenetic and of.... . . Chemistry of tourmaline .............. Scheelite occurrences . . . . . . . . . . . . . . . . . |  | | Journal (article/letter/editorial) | | University of the Witwatersrand, Johannesburg, South Africa A Reappraisal of Some Aspects of Precambrian...contribute to the estabon their geology. In Southern Africa, the Precam- lishment of this highly distinctive...established, and, apart from the institution of local formational names there is no necessity to complicate...differences of sequence and facies changes, together with local unconformities, but, essentially, these belts are...associations that local variations are unimportant. Some of the major Precambrian structures in Africa were first |  | | Journal (article/letter/editorial) | | hook-shaped, extending 45 km east–west and 85 km north–south. It is bounded by two major sinistral strike-slip...K-feldspar quartz calcite epidote tourmaline sphene scheelite ilmenite rutile arsenopyrite pyrite pyrrhotite...2004c, 2005a). The laminated quartz veins contain scheelite, pyrrhotite, chalcopyrite, arsenopyrite2, pyrite2...muscovite, quartz, and traces of calcite, K-feldspar, scheelite, tourmaline, titanite, epidote, apatite, and sericite...1) Quartz from laminated quartz vein (stage 2) Scheelite from laminated quartz vein (stage 2) Quartz from |  | | Journal (article/letter/editorial) | | depositional textures such as euhedral albite, scheelite, and ankerite crystals are often preserved at...cleaning were applied (CHANNERand SPOONER,1992). The scheelite samples were precleaned in the same way as quartz...caused surface reactions on the scheelite. For final cleaning the scheelite samples were put in high density...populations as given in Table 2. Sample TSP33-5a-sc (scheelite) has a relatively high CHI value which had not...figures would rise closer to one. H45-I quartz and scheelite have charge balances of I. 10 and 0.86. respectively |  | Graupner, Torsten, Kempe, Ulf, Klemd, Reiner, Schüssler, Ullrich, Spooner, Edward T. C., Götze, Jens, Wolf, Dieter (2005) Two stage model for the Muruntau (Uzbekistan) high grade ore structures based on characteristics of gold, host quartz and related fluids. Neues Jahrbuch für Mineralogie - Abhandlungen, 181 (1) 67-80 doi:10.1127/0077-7757/2005/0181-0002 | Journal (article/letter/editorial) | | addition to massive quartz. Native gold, apatite, scheelite, allanite, rutile, ilmenite, monazite, zircon...after collision - Suture zone Inset (Kyzyl Kum district): Mesozoic - Cenozoic sedimentary cover Palaeozoic...Lake Issyk-Kul Tashkent Kokpatas Kyzyl Kum ore district 8 M oz. Samarqand Suture Tadjikistan Muruntau...native Au I. The latter forms intergrowths with scheelite and Bi-tellurides (probably minerals from the...work during this study. Associated minerals Scheelite, Bi-tellurides, and arsenopyrite are directly |  | | Journal (article/letter/editorial) | | Hg, Bi, As, Te; Ni, Co, Cd, Pd, Pt; Mo, W as scheelite ); and (c) being able to explain a tendency for...was located for a certain amount of time in West Africa until the early 60's. He went to Clifton College...research interests include the Barberton Greenstone Belt, South Africa, constraints on conditions for...Au-quartz vein ore systems in the Barberton greenstone belt, South Africa (De Ronde et al., 1992; n = 9 )...significant magmatic volatile input (e.g., Baguio district, Philippines). In addition, as Sillitoe (1989) |  | | Journal (article/letter/editorial) | | the Polaris MVT Pb–Zn deposit, and the ; 3.2 Ga Barberton sea-floor Fe-oxide deposits Žironstone pods. has...conductivities. Electrolysis is not used for scheelite since it causes surface reactions ŽChanner and...sulphides. Dilute HNO 3 should not be used with scheelite because of surface reactions; dilute HNO 3 should...barite; carbonates–calcite, dolomite; tungstates–scheelite; fluorides–fluorite. d Procedure modified after...Že.g., samples from the ironstone pods of the Barberton greenstone belt; de Ronde et al., 1994. have charge |  | | Journal (article/letter/editorial) | | Zandrivier Deposit, Pietersburg Green Belt, South Africa: an Auriferous Tourmalinite S. P. Kalbskopf...Kalbskopf P O Box 6084 Pietersburg North, 0750, South Africa e-mail: steffen@mweb.co.za J. M. Barton Jr. Department...Park, 2006, South Africa e-mail: jmb@na.rau.ac.za © 2003 Geological Society of South Africa ABSTRACT The...for an Archaean mesothermal gold lode in southern Africa with respect to the abundance of tourmaline rock...Uitkyk Formation yield a U-Pb concordia intercept SOUTH AFRICAN JOURNAL OF GEOLOGY, 2003, VOLUME 106, PAGE |  | | Book | | t a t e d Bibliographies of Mineral Deposits in Africa, Asia (exclusive of t h e U S S R ) a n d Australasia...him. I have tried to include all ore districts in Africa, Asia (exclusive of the U.S.S.R.)> and Australasia...incluir todos los distritos mineros conocido en Africa, Asia (con exclusion de la Union Soviética), y...Greenland. This volume covers mineral deposits in Africa, Asia exclusive of the U.S.S.R., and Australasia...Philippines, and Japan are included with Asia. In South Africa, the deposits are arranged by prov inces, in |  | | Journal (article/letter/editorial) | | mountain chains for the most part run north and south, ending abruptly on its margin. The idea is that...—NOTES ON THE GEOLOGY OF W E S T SWAZILAND, SOUTH AFRICA. By Professor T. EDPERT JONES, F.R.S., F.G.S...dominating feature of the district. He has also provided plans and sections of the district, which are here partly...Corundum, and Scheelite. Our friend Mr. John Ballot, F.G.S., who knows Mr. S. Ryan and the district very well...who has a clear notion of the structure of the district, as showu by his plan and sections. In the course |  | | Journal (article/letter/editorial) | | deep-water environments usually succeeded by only local shallow-water to subaerial environments. Widespread...basalt Quartz-arenite-bearing sequences are scarce south of the Sachigo Subprovince, with only one example...Lake Jumping-Six Mile Lake cycle Sturgeon Lake South Sturgeon Assemblage, Dark Water, Lyon cycles Top...by mafic to felsic cyclical volcanic units. In Africa, platform sequences occur at the base of the Bulawayan...Kaapvaal craton, the Moodies Group within the Barberton greenstone belt contains quartz arenites deposited |  | | Journal (article/letter/editorial) | | 30° Ab a tto Golden Mile Deposit 56000 mN South West Terrane Mount Percy 120° 200 Km Black Flag...Because of the concordance between regional and district scale, the Mueller et al. (2016; this issue) model...(Fimiston style mineralization) in the Paringa South mine, photo from Mueller and Muhling (2013). b Diamond...mineralization (Fig. 7) is defined by quartz-carbonate-scheelite-pyrite veins (Fig. 7a–c) in the Golden Mile Dolerite...core of these veins composed of quartz-carbonate-scheelite ± pyrite fill. Stage III comprises euhedral quartz |  | de Ronde, C. E. J., Faure, K., Bray, C. J., Whitford, D. J. (2000) Round Hill Shear Zone-Hosted Gold Deposit, Macraes Flat, Otago,New Zealand: Evidence of a Magmatic Ore Fluid. Economic Geology, 95 (5) 1025-1048 doi:10.2113/gsecongeo.95.5.1025 | Journal (article/letter/editorial) | | deposits occur throughout the Otago region of the South Island, New Zealand, all of which are hosted by...significant magmatism along the continental margin of South Gondwana and provides evidence for arc-related igneous...Innes Mills deposits; and Golden Bar ~12 km to the south (Fig. 1). This study focuses on the Round Hill deposit...(HMSZ) within the Otago Schist of central Otago, South Island, New Zealand. The stripe pattern outlines...of these veins. D. Example of scheelite in a stockwork vein. Scheelite in this sample occurs in distinct |  | | Journal (article/letter/editorial) | | system in biotite grade Otago Schist. Native gold, scheelite, pyrite and arsenopyrite are found in and adjacent...metamorphosed turbidite terranes, gold and/or scheelite mineralization is spatially closely associated...metamorphic dewatering. Precipitation of metals (scheelite in this case) was due to interaction between fluid...contain irregularly distributed native gold and scheelite. The Otago Schist, which forms the country rock...greywacke-dominated Caples terrane lies to the south-west. The central Aspiring terrane is an oceanic |  | | Journal (article/letter/editorial) | | mineralized samples corresponding to the mixing of scheelite and wall-rock spectra. A water/rock ratio of ~...hydrothermat fluid circulation. The Djebel Aouam district offers an opportunity to study both the utilization...2. Geological setting The Djebel Aouam mining district in central Morocco (Fig. 1 ) represents a complex...granitic stocks. This W - P b - Z n - A g mining district is part of the W - S n - M o Moroccan province...magmatic and hydrothermal events of the Djebel Aouam district (Agard et al., 1958; Cheilletz, 1983a, b) are |
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