 | 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) |
| Mineralization and Crustal-Scale Fluid Evolution in the Kwekwe District, Midlands Greenstone Belt, Zimbabwe: A Combined...Combined Geochemical, Mineralogical, Stable Isotope, and Fluid Inclusion Study PETER BUCHHOLZ,† THOMAS OBERTHÜR...D-14473 Potsdam, Germany AND JAMIE WILKINSON Department of Earth Science and Engineering, Royal School...The Kwekwe district comprises the central part of the Archean Midlands greenstone belt of Zimbabwe and...represents one of few Archean gold provinces in the world hosting gold deposits associated with massive |
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| brucec@uj.ac.za KERMESITE Globe and Phoenix Mine, Kwekwe District, Zimbabwe K ermesite, Sb2S2O, an antimony...here. For many years the Globe and Phoenix mine in the Kwekwe district of Zimbabwe held the honors for producing...size and quality. It was not until the early 2000s that this southern African gold-antimony mine relinquished...specimen shown here is from the Globe and Phoenix mine (fig. 1) and was chosen as such for two reasons...largest and most aesthetic that I know of. The Chinese specimens perhaps surpass the old Zimbabwe material |
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| Granite-hosted gold mineralization in the Midlands greenstone belt: a new type of low-grade gold deposit in...in Zimbabwe Received: 29 January 1997 / Accepted: 22 September 1997 Abstract In 1992, the Ford gold deposit...in the Kwekwe district near the Indarama mine, approximately 200 km southwest of Harare, Zimbabwe. Based...drilling and open pit operations, estimated ore reserves are at least 3 Mt with an average gold content...content of 2.5 g/t. The gold deposit is located within a porphyritic granite dike with a thickness of 20±50 |
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| LITHOLOGICAL CONTRASTS AND CONSTRAINTS ON GOLD MINERALIZATION IN GRANITOIDS IN THE ZIMBABWE CRATON: STRUCTURAL...STRUCTURAL CONTROLS AND IMPLICATIONS FOR EXPLORATION S. KALBSKOPF and T. NUTT INFORMATION CIRCULAR No. 370...LITHOLOGICAL CONTRASTS AND CONSTRAINTS ON GOLD MINERALISATION IN GRANITOIDS IN THE ZIMBABWE CRATON: STRUCTURAL...STRUCTURAL CONTROLS AND IMPLICATIONS FOR EXPLORATION by S. KALBSKOPF1 and T. NUTT2* (1S K International Geoconsultants... LITHOLOGICAL CONTRASTS AND CONSTRAINTS ON GOLD MINERALISATION IN GRANITOIDS IN THE ZIMBABWE CRATON: STRUCTURAL |
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| structure and gold mineralization in the Kadoma region of the Midlands greenstone belt, Zimbabwe R. J. H...Archaean greenstone gold deposits are located in distinctive structural settings, and Zimbabwe is a good example...90% of its gold production being derived from structurally controlled veisns, shear zones and probably...hosted deposits. The structural framework of the Zimbabwe craton is dominated by the evolution of the c...major shear zones focused strain, which in the Midlands greenstone belt, evolved from pure N-S compression |
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| in glass as home decor, jewelry, and sculpture. Art glass minerals and fossil replicas. Jeremy Sinkus,...Photography Photographing natural history specimens and collections. mmauthner@gmail.com Susan M. Robinson...Photography, Jeff Scovil Mineral, jewelry, gem, bead, and fossil photography. www.scovilphoto.com jeffscovil@earthlink...collection of mineral specimens and the recognition of the scientific, economic, and aesthetic value of collecting...for membership, publication, award, and education information and programs. www.minsocam.org business@minsocam |
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| Rhodesian and Tanzanian cratons has been made geochemical history of the Earth’s crust and mantle. In...In from Rhodesia and twenty-five galenas from Tanzania Alberta, Canada 5 March. 1973) from galena...galena found in the gold mines of as an aid to understanding the early all, isotopic analyses of eightly galenas...the 2700 m.y. point on a conformable growth curve, and a group from the Lupa Goldfield whose The Rhodesian...isotopically and ratios indicate a three-stage history. geologically into two groups-Que Que-type and Bulawayo-type |
 | Groves, David I., Phillips, G. Neil, Ho, Susan E., Houstoun, Sarah M., Standing, Christine A. (1987) Craton-scale distribution of Archean greenstone gold deposits; predictive capacity of the metamorphic model. Economic Geology, 82 (8) 2045-2058 doi:10.2113/gsecongeo.82.8.2045 | Journal (article/letter/editorial) |
| University of Western Australia,Nedlands, 6009Australia AND CHRISTINE A. STANDING AustralminPacificN.L., Perth...ith sucha philosophycanhavepredictivecapacityin gold exploration. The metamorphicmodel,one of a numberof...inducechanneled fluid flow and to focus ore fluids toward suitable host rocks and structural sites. Dec...)at a suitable stratigraphic-metamorphic level, and (4) abundantAu-enrichedkomatiitesandS-richsediments...appear to act in concert to produce the largest gold depositsand most abundantgold mineralizationin 2 |
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| renewed interest in the geo logy and mineral resources of Zimbabwe which followed the removal of United...reprinting is necessary. In the interest of speed and economy the reprinting has been done by the photo-lithographic...Bulletin is the insertion of Table IIIA, Zimbabwe Mineral Production and Value, on page 114A. Due to the then...make a safe ' depository for endangered documents and to make the accrued information available for consu...identification of the Copyright holder is clear and, where feasib le, to contact the originators. For |
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| COWARD Geology Department Imperial College London, UK and A. C. RIES Ries-Coward Associates Ltd Reading, UK...founded in 1807 as the Geological Society of London and is the oldest geological society in the world. It...membership of around 7500. It has countrywide coverage and approximately 1000 members reside overseas. The Society...the Society's international journals, books and maps, and which acts as the European distributor for publications...American Association of Petroleum Geologists, SEPM and the Geological Society of America. Fellowship is |
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| ecosystems and the earth: — Water and soil contamination caused by waste disposal and management practices...practices Water and soil contamination caused by industrial activities Environmental problems associated...Geological processes that threaten or affect biosystems and people Remediation of man-made or geological hazards...mining and abstraction activities for industrial minerals, coal, ores as well as for oil and gas, water...water and energy Environmental impacts of exploration and recultivation Environmental impacts of hazardous |
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| 2015 Figure 4. Gold in vein quartz, 6.4 cm, from an unknown Witwatersrand gold mine. Gold Fields of South... Spongy-form gold in quartz, partially etched away by acid, 3.2 em, from the Sheba mine, Barberton greenstone...collection. Figure 5. Gold intermixed in quartz, 5 cm,from the Globe and Phoenix mine, Zimbabwe. Anonymous collection...collection. Figure 8. Leaf gold, 17 cm, from the New Consort mine, Barberton, South Africa. MuseumAfrica...MuseumAfrica specimen. Figure 6. An alluvial gold nugget, 2.6 cm, from Namibia, most likely from the Ondundu |
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| Kitson, A. E., and Felton, W. J., 1930, Minerals of concentrates from stream gravels, soils and crushed rocks...rocks of the Gold Coast: Gold Coast Geol. Survey Bull. 6, 50 pp. 13. Kransdorff, D., 1937, Notes on the...the occurrence of visible gold at the Randfontein Estates: Geol. Soe. South Africa Trans., 40, p. 121-125...Liebenberg, W. R., 1955, The occurrence and origin of gold and radioactive minerals in the Witwatersrand...Witwatersrand System. The Ventersdorp Contact Reef, and the Black Reef: Geol. Soc. South Africa Trans., v. 48, |
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| of the country should he on view in the “city of gold.” South Africa is not well known for its institutional...(the world’s largest deposits of gold, platinum, manganese, chrome. and vanadium), there are very few places...specLacular geological and mineralogical heritage of this country (Viljoen and Reiniold 1999). For this...Africa but also from southern Africa as a whole and other regions of the world. History of the Museum...collection af the Witwatersrand Chamber of Mines and the Museum of the Geological Society of South Afiicil |
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| development, and examines in some detail the the museum's collection, remarkable man who assembles and curates...Photographs by Steven Chamberlain The Collection First and foremost the Pinch collection is an exhibit. Many...displayed in Waddell cases which are well lighted and clearly labeled. For this reason the collection can...short period o f time. However, the depth, beauty, and scientific value o f the assembled specimens are...miniatures, thumbnails, and micromounts. The collection has both great breadth and depth. The breadth arises |
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| sustained almost solelyby the monographs of Ramdhor(55) and Liebenbergor the mineragraphyof the WitwatersrandOres...of the mineral provinces,districts and epochs of the Transvaal and Southern Rhodesia. Whether it is a...a profoundstudyof all the gold depositsin the Transvaaland SouthernRhodesia,as one mineral province,or...example, Mendelssohn(16) speakingof the origin of the gold depositsof the MurchisonRange states "The ore bodies...granitic matter permeatingthe whole of the schistbelt, and there is reasonthereforeto acceptsuchan hypothesisas |
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| Claeys & T. Costes Johannes Kentmann (1518–1574) and his mineral collection ............... 461 by W....the Auglaize quarry, Paulding County, Ohio. Joe and Susan Kielbaso collection; Jeff Scovil photo. by...for one year Subscription (Libraries, companies and institutions): $250/one year Subscribe at www.MineralogicalRecord...Mineralogical Record and the Sponsoring Organizations listed below. We invite you to become a Fellow and join this...(2014–2019) William B. (Bill) Wray (2014–2018) Dave and Kathy Waisman (2014–2018) Eugene S. Meieran (2014–2018) |
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| 2015 The role of geochemistry in environmental and epidemiological studies in developing countries:...environment on the health of man and animals is growing as rapid economic and population growth extends such...such problems as land degradation, pollution and urbanization from industrialized nations to the developing...this paper we review the principal socio-economic and environmental pressures on developing countries before...pathways of chemical elements from rocks and soils to man and animals; and (3) developing amelioration strategies |
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| 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 ………………………………...CHAIRMAN’S CHAT ………………………………………………………………………… 4 ARTICLES AND REPORTS ……………………………………………………………… 6 A reappraisal...Nyanga archaeology: Re-examination of field evidence and interpretations ................. 8 Report on the |
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| scientists and engineers. And as your needs grow, our worldwide service network gets bigger and better prepared...(1986-1990) without equal in the gold industry ® Record revenue, earnings and cash flow achieved in each of...of the last five years. ® Gold production rose 220% to 596,000 ounces in 1990. The target for 1991 is...is over 700,000 ounces and over 1.1 million ounces annually by 1992. @ Gold reserves increased nine-fold...same five-year period. @ Higher production and a unique gold hedging program should ensure future growth |
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| Gold Metallogeny and Exploration Edited by R.P. FOSTER Senior Lecturer in Economic Geology Department...review, as permitted under the UK Copyright Designs and Paterits Act, 1988, this publication may not be reproduced...accuracy of the information contained in this book and cannot accept any legal responsibility or liability...last decade, the high and continuing demand for gold has prompted a global gold rush on a scale never...Ballarat, California and the Yukon. Gold is being sought on every continent and, with very few exceptions |
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| following notes are based was made in October and November, 1914, and occupied in all about 10 days. Particular...H. Bowman and Mr. William Reynolds, of Phoenix, for information and personal guidance and for considerate...the possibility of mining these deposits. To him and to his associate, Mr. J. V. N. Dorr, of New York...assays, as should be deemed appropriate. SITUATION AND MODES OF ACCESS. The Mazatzal Range is a prominent...west of north and a length of about 40 miles. It lies between Verde River on the west and Tonto Creek on |
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| Geological Society of Zimbabwe G S Z Newsletter October 2016 No. 3 of 3 of 2016 Mesas and Buttes of the...the AM Macgregor Lecture on Friday 5th August 2016 and then led a two-day field trip to the “Nickel laterite...Society of Zimbabwe, P.O. Box CY 1719, Causeway, Harare Geological Society of Zimbabwe Newsletter ...Exploration and Minerals Marketing Corporation Bill ……………………………………………………………… 7 ARTICLES AND REPORTS The...mineralisation and deformation in the Musengezi Subchamber of the Great Dyke, Zimbabwe ... A brief overview |
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| Precambrian Geology 8 PRECAMBRIAN CONTINENTAL CRUST AND ITS ECONOMIC RESOURCES DEVELOPMENTS IN PRECAMBRIAN...Windley Further titles in this series 1. B.F. WINDLEY and S.M. NAQVl (editors) Archaean Geochemistry 2. D.R...Formation 6. A.F. TRENDALL and R.C. MORRIS (Editors) Iron-Formation: Facts and Problems 7 . B. NAGY, R.... WEBER, J.C. GUERRERO and M. SCHIDLOWSKI (Editors) Developments and Interactions of the Precambrian Atmosphere...Lithosphere and Biosphere DEVELOPMENTS IN PRECAMBRIAN GEOLOGY 8 PRECAMBRIAN CONTINENTAL CRUST AND ITS ECONOMIC |
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| • NUMBER 1 • JANUARY-FEBRUARY 2000 • $15 Gem and mineral dealers depicted in the Hortus Sanitatis...January-February 2000 volume 31, number 1 Editor and Publisher: Wendell E. Wilson Associate Editors:...Wemer Lieber Eric Offermann Jeffrey A. Scovil Harold and Erica Van Pelt Single copies of this issue are available...the supply lasts, at $15 per copy plus $1 postage and handling. Subscription rates for one year: Individuals...$51 Libraries, companies and Institutions (worldwide): $120 First class and airmail rates available on |
