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the Freda-Rebecca gold deposit Ā± Bindura District, Zimbabwe Received: 4 January 1999 / Accepted: 13...Abstract The Freda-Rebecca Mine is currently the largest gold producer in Zimbabwe. The ore deposit is hosted...and veinlets. Hydrothermal metasomatism caused microcline and biotite formation, prevailing in the Rebecca...subsequent to the formation of the K-metasomatic zone (microcline + biotite), hydrothermal ĀÆuids preferentially...sequence. They mark the transition to the ``Lower Shamva Formation'' of rhyolitic, dacitic and andesitic |
| Jelsma, Hielke A., Vinyu, Michael L., Wijbrans, Jan R., Verdurmen, E. A. T., Valbracht, P. J., Davies, G. R., Valbracht, P. J. (1996) Constraints on Archaean crustal evolution of the Zimbabwe craton: a U-Pb zircon, Sm-Nd and Pb-Pb whole-rock isotope study. Contributions to Mineralogy and Petrology, 124 (1) 55-70 doi:10.1007/s004100050173 | Journal (article/letter/editorial) |
Constraints on Archaean crustal evolution of the Zimbabwe craton: a U-Pb zircon, Sm-Nd and Pb-Pb whole-rock...felsic volcanic and plutonic rocks from northern Zimbabwe combined with field data and Pb-Pb and Sm-Nd wholerock...constrain the timespan of development of the Harare-Shamva granite-greenstone terrain and establish the relative...radiometric ages for Upper Bulawayan greenstones in the central and southern part of the craton and H.A. Jelsma...Department of Geology, University of Zimbabwe, P.O. Box MP167, Harare, Zimbabwe P.J. Valbracht Institut de Physique |
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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 |
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Zone, Limpopo Belt, Zimbabwe, and relevance to gold mineralization at Renco mine Tom G. Blenkinsop Department...Geology, University of Zimbabwe, P.O. Box MP 167, Mount Pleasant, Harare, Zimbabwe Present Address: School...uni-mainz.de V. Chiwara Rio Tinto, Zimbabwe, PO Box AY 266, Harare, Zimbabwe e-mail: Victor.Chiwara@riotinto...mapping and geochronological studies in the Renco mine area of the Northern Marginal Zone of the Limpopo...Amphibolite facies gold mineralization at Renco mine probably occurred at this time, followed by Palaeoproterozoic |
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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 |
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R $ ~ R S ( Geology Department University of Zimbabwe P 0 Box MP167 Mt. Pleasant Harare) Recent whole...(s.l.) from the Shamva-Harare Greenstone Belt in the north-central part of Zimbabwe indicate Proterozoic...continuation of Arehaean style igneous activity in the Zimbabwe craton during the early Proterozoio era. This...ArchaeanProterozoie boundary (at circa 2.5Ga in Zimbabwe). Some of the stocks have high 87Sr/86~r initial...events at the Archaean Froterozoic Boundary in Zimbabwe. ABCHAEAN GNEISS COMPLEX OF EASTERN HEBEI PROVINCE |
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R $ ~ R S ( Geology Department University of Zimbabwe P 0 Box MP167 Mt. Pleasant Harare) Recent whole...(s.l.) from the Shamva-Harare Greenstone Belt in the north-central part of Zimbabwe indicate Proterozoic...continuation of Arehaean style igneous activity in the Zimbabwe craton during the early Proterozoio era. This...ArchaeanProterozoie boundary (at circa 2.5Ga in Zimbabwe). Some of the stocks have high 87Sr/86~r initial...events at the Archaean Froterozoic Boundary in Zimbabwe. ABCHAEAN GNEISS COMPLEX OF EASTERN HEBEI PROVINCE |
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R $ ~ R S ( Geology Department University of Zimbabwe P 0 Box MP167 Mt. Pleasant Harare) Recent whole...(s.l.) from the Shamva-Harare Greenstone Belt in the north-central part of Zimbabwe indicate Proterozoic...continuation of Arehaean style igneous activity in the Zimbabwe craton during the early Proterozoio era. This...ArchaeanProterozoie boundary (at circa 2.5Ga in Zimbabwe). Some of the stocks have high 87Sr/86~r initial...events at the Archaean Froterozoic Boundary in Zimbabwe. ABCHAEAN GNEISS COMPLEX OF EASTERN HEBEI PROVINCE |
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R $ ~ R S ( Geology Department University of Zimbabwe P 0 Box MP167 Mt. Pleasant Harare) Recent whole...(s.l.) from the Shamva-Harare Greenstone Belt in the north-central part of Zimbabwe indicate Proterozoic...continuation of Arehaean style igneous activity in the Zimbabwe craton during the early Proterozoio era. This...ArchaeanProterozoie boundary (at circa 2.5Ga in Zimbabwe). Some of the stocks have high 87Sr/86~r initial...events at the Archaean Froterozoic Boundary in Zimbabwe. ABCHAEAN GNEISS COMPLEX OF EASTERN HEBEI PROVINCE |
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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...+ biotite + garnet _+ h y p e r s t h e n e microcline + plagioclase + q u a r t z _+ h o r n b l e |
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ZIMBABWE GEOLOGICAL SURVEY BULLETIN No. 90 The Erosion Surfaces of Zimbabwe L. A. LISTER, M.Sc., D.Phil...LIBRASĆ ZU - 06.01 Ćlungen ĆÆte 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 |
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PETROCHEMISTRY OF THE LATE ARCHAEAN CHINAMORA BATHOLITH, ZIMBABWE 103 GRANITES OF THE PHILIP A. SNOWDEN* and...which constitute the Salisbury, Mazoe, Bindura and Shamva g r e e n s t o n e b e l t s ( F i g . 1). T h...Porphyritic Granite, which crops out over most of the central part of the batholith. Averaged modal data from...former contain less alkali feldspar (perthitic microcline) than the Late Granites. Considered in terms...data was reached for the Sesombi pluton in the central part of the Rhodesian craton (Sutton and Watson |
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plagioclaseāquartzābiotiteāmuscoviteāilmeniteāmicroclineāapatite. 6 Chemical Geology xxx (xxxx) xxxāxxx...from shear zones in the Harare-Shamva-Bindura greenstone belt (Zimbabwe), H2OāCO2 and graphite-bearing... 2002. In mid-crustal mylonites from southern Zimbabwe, the immiscibility between brines and CO2āCH4āN2...graphite schists and pelitic rocks from south-central Maine (USA), Sisson and Hollister, 1990 assumed...Umwindsi shear zone in the Harare-Shamva-Bindura greenstone belt, NE Zimbabwe. Eur. J. Mineral. 11, 1079ā1090 |
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Implications for the evolution of the Archaean Zimbabwe craton / / Z. Bagai a,b, R. Armstrong c, A.B...granitoids and Upper Bulawayan volcanic sequence of the Zimbabwe craton. The G5 granitoids in the Vumba granite...the same time as the Razi suite granitoids in Zimbabwe. The discrete shear zones documented in the Vumba...D1-accretion-related deformation event in the Zimbabwe craton. # 2002 Published by Elsevier Science B...Keywords: Geochronology; SHRIMP zircon; Neoarchaean; Zimbabwe craton; Botswana Corresponding author. Tel |
| Wang, Changhong, Huang, Yongjian, Ma, Yu, Zhang, Zhifeng (2019) Geochemistry, mineralogy and mineral chemistry of the Welatam Cu-Mo-Bi-Au prospect, Northeast Myanmar. Ore Geology Reviews, 111. 102973 doi:10.1016/j.oregeorev.2019.102973 | Journal (article/letter/editorial) |
the Tengchong-Lianghe (Tengliang) metallogenic district. Two mineralization types, identified in this...occurrences and gold enrichment. In the Welatam district, Bi-Aubearing minerals are usually found in the...2015); b. Regional geological map of the Tengliang district that shows the distribution of the granitoids...by the melts. The Tengchong-Lianghe (Tengliang) district in northeast Myanmar and southwest Yunnan is a...2014; Deng et al., 2014; Wang et al., 2016). This district, a part of the western Yunnan metallogenic belt |
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same sense as we use 'relics' with regard to the Shamva Greenstone Belt of Rhodesia. The 'schist relics'...latter to produce microcline-rich zones. G2 paragneisses Almost half of the district is underlain by the...with interstitial biotite, hornblende and some microcline. Layering is defined by grain size variations...biotite foliae. In the porphyroblastic gneiss, microcline grows at the expense of the above minerals and...localized porphyroblastic phase is common with microcline replacing the above minerals. In the extreme |
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evolution of orogenic gold mineralisation at the Betam mine, south Eastern Desert, Egypt Basem A. Zoheir Received:...Eastern Desert of Egypt has long been a mining district for gold, with more than 95 gold occurrences mostly...for the deposits at the El-Sid and Atud mines, Central Eastern Desert. Almond et al. (1984) suggested...relationship between gold mineralisation at the Fawakhir mine area (26Ā°16ā²N, 33Ā°38ā²E) and transpressional tectonics...located along Wadi Um Tenedib within the Wadi Allaqi district, at Lat. 22Ā°16ā²42ā³ N and Long. Miner Deposita |
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terrain seems to be the Chilimanzi area in the Zimbabwe craton. Ā© 2000 Elsevier Science B.V. All rights...44ā64%) and quartz (17ā44%), with more restricted microcline (Or94 ā 98An0; B 5%) and biotite (XMg = 0.50ā0...4). K-feldspar is a perthitic (Or79 ā 86An0) microcline (Or95 ā 97). Accessories are magnetite, apatite...granodiorites consist of plagioclase (An29 ā 40; 37ā53%), microcline (Or94 ā 96An0; 10ā19%) and quartz (18ā 25%)....horizontal magmatic fabric locally preserved in the central part of the massif may suggest that the AVT unit |
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FRONTISPIECE: Historic pump at the Wodgina tantalumātin mine. Brought from Port Hedland by camel train about.......... 63 Bernic Lake tantalumālithiumācaesium mine ............................................................................................ 77 Zimbabwe ................................................................................... 108 Wodgina mine ................................................................................... 118 Bald Hill mine ............................................... |
| Acosta-Gongora, P., Gleeson, S. A., Samson, I. M., Ootes, L., Corriveau, L. (2015) Gold Refining by Bismuth Melts in the Iron Oxide-Dominated NICO Au-Co-Bi (Ā CuĀ W) Deposit, NWT, Canada. Economic Geology, 110 (2) 291-314 doi:10.2113/econgeo.110.2.291 | Journal (article/letter/editorial) |
mineral deposits (e.g., NICO deposit; Tennant Creek district, Australia; Idaho cobalt belt, United States;...include deposits in the AuCu-Bi Tennant Creek district (Skirrow and Walshe, 2002), the Co-Cu-Au-Bi-Y-REE...1000 km Great Bear Lake Wopmay Orogen COPPER MINE HOMOCLINAL 116o Eldorado/Echo Bay/ El Bonanza...ferrohornblende, with or without orthoclase, microcline, and hedenbergite. The upper unit is a quartz...that have been strongly potassically (orthoclase-microcline Ā± biotite) altered. In places, these volcanic |
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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 |
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3010, Australia 2 Phillipsgold Pty Ltd, PO Box 3, Central Park, Vic. 3145, Australia (neil@phillipsgold.com...1ā2 km by 1ā2 km by 1ā20 m Barton Deeps at Jundee mine Deposit Ore shoot Several geographically related...near-constant in many gold systems. For example, at Hunt mine in the KambaldaāSt Ives goldļ¬eld, an alteration...deposition retrograde (Fig. 11, middle; e.g. Hunt mine, KambaldaāSt Ives). In deeperālater metamorphism...GOLD DEPOSITS 705 gold provinces (e.g. Victoria, Zimbabwe, Yilgarn craton), another consequence may be the |
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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...O. B o x . MP. 1 6 1 , Mount Pleasant, Harare, Zimbabwe. B.F. Windley, Department of Geology, University...AND PETROGENETIC IMPLICATIONS, ARUNTA INLIER, CENTRAL AUSTRALIA. A.Y. Glikson and J. Foden 281 EVOLUTION...MINERALISATION IN THE EARLY PRECAMBRIAN CRUST OF ZIMBABWE J.F. Wilson and T.H.C. Nutt 555 MINERAL OCCURRENCES |
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REMARKS by PROFESSOR R. A. L. BLACK 95 MISTRESS MINE by H.J. MARTIN 96 DELEGATES IN ATTENDANCE ā¢ INDEX...excess of 12 million pound, already. valued Ā·at mineĀ·. The main minerals. of cot1r,e. have been tin....particularly the tructure at depth. As Minister of Mine . 1 am extremely interested in the po sibilities...Government relating to t he establishment o f a central customs mill i n t h ļæ½ West Mtoko fields. m a i...the unwcathcred zone. is much more expensive to mine. The coarse beryl conĀ tent of many pcgmatites is |
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............... . 83 The Fresnillo Ag-Pb-Zn District, Zacatecas, Mexico .............................Massive Sulfide Deposits of the BathurstNewcastle District, New Brunswick, Canada Discussion of Tectonic...Deposits ................ . 4.5.2 The Homestake Gold Mine, South Dakota .. 4.5.3 Pre-Metamorphic Stratiform...Post-Metamorphic Quartz-Rich Vein Ores: The Sigma Mine, Quebec ................ . 4.5.5 Discussion and.............. The Chromite Deposits of Selukwe, Zimbabwe .............................. Discussion ... |