 | | Journal (article/letter/editorial) | | manganese ores of the Postmasburg manganese field, South Africa J. GUTZMERAND N. J. BEUKES Department of Geology...University, P.O. Box 524, Auckland Park, 2006, South Africa Abstract The diagenetic to very low-grade metamorphic...Transvaal Supergroup, manganese ore, Postmasburg, South Africa. Introduction TIlE manganese ores of the Postmasburg...Supergroup is overlain unconformably by red beds of the Gamagara Formation of the late Palaeoproterozoic (2.2-1...andesitic lavas, are thrust over the Gamagara Formation along the Black Ridge thrust fault (Fig. IC) (Beukes |  | | Report (issue) | | 838–7.88 X-ray Powder Pattern: Gloucester Farm, South Africa. 3.309 (100), 3.051 (80), 2.805 (80), 2.349...Total 99.3 [101.9] [100.00] (1) Gloucester Farm, South Africa; recalculated from original analysis. (2) Do...manganese ore replacing shale (Gloucester Farm, South Africa); in veinlets cutting manganese ore (Molinello...Bixbyite, hematite, ephesite, diaspore, amesite (Gloucester Farm, South Africa); braunite, saneroite, bementite...Along Gamagara Ridge, on Gloucester Farm, about 27 km north of Postmasburg, Cape Province, South Africa |  | | Journal (article/letter/editorial) | | THF,Postmasburg manganese field,situated in the Northern replacement of the countryrockbymanganeseCapeProvince...In contrast Schneiderh6hn (1931)suggested in the south(Fig. 1). Miningof the manganese orescom- Borchert...ng AnalyticalTechniques the centralpartof the Gamagara ridge.Siliceous oresoccur in the Easternbelt alongthe...southernextremitiesof the Gamagara manganese oresamples, covering all macroscopically distinct ridge (Fig. 1; Hall.../•.• ?..i.' Qua rtzit e Mapedi Fm(M)+ + shale Gamagara Fm of Olifantshoek Group Unconformity TRANSVAAL |  | | Journal (article/letter/editorial) | | Postmasburg, South Africa. 1 (With Plate IX.) By Louis T. NEL, D.Sc. Geological Survey, U n i o n of South Africa...country ', Geological Survey of the Union of South Africa (Special Publication), Pretoria, 1929, 104 pp...Postmasburg area, situated in the northern part of the Cape Province, South Africa, zunyite has so far been found...a low prominence or rise about 800 yards to the south-east of Lace's Goat on the farm Doornfontein (no...and forming part of a small circular outlier of Gamagara beds hardly 150 yards across. This outlier gives |  | | Journal (article/letter/editorial) | | nn Vtltrr'ns, GeologicalSun:ey of the Union of South AJrica, Pretoria. Ansrnlcr Gamagarite, a new mineral...the manganese ores of the Postmasburg district, Cape Province. It has the following properties: Colour...its name from the Gamagara ridge, a prominent line of hills running from north to south acrossthe westernpart...rosecoloured"books" of ephesite(1), and brown flakesof diaspore(2). In this ore gamagarite is present as aggregatesof...by Schneiderhijhn (6). Lamellar inclusions of diaspore, oriented parallel to the cube facesare sparingly |  | Fairey, Brenton J., Timmerman, Martin J., Sudo, Masafumi, Tsikos, Harilaos (2019) The Role of Hydrothermal Activity in the Formation of Karst-Hosted Manganese Deposits of the Postmasburg Mn Field, Northern Cape Province, South Africa. Minerals, 9 (7) 408 doi:10.3390/min9070408 | Journal (article/letter/editorial) | | Deposits of the Postmasburg Mn Field, Northern Cape Province, South Africa Brenton J. Fairey 1,† , Martin J...Geology, Rhodes University, Grahamstown 6139, South Africa Correspondence: h.tsikos@ru.ac.za Current address:...Postmasburg Manganese Field (PMF), Northern Cape Province, South Africa, once represented one of the largest...Postmasburg manganese field; hydrothermal; karst; South Africa Minerals 2019, 9, 408; doi:10.3390/min9070408...(KMF), the Postmasburg Manganese Field (PMF) was South Africa’s largest producer of this important component |  | | Journal (article/letter/editorial) | | Plagioclase containing BaO 3-5% from Broken Hill, New South Wales. Bastinite. D. J. Fisher, 1945. Program and...Annual Meeting, p. 9 ; Rep. Invest. Geol. Surv. South Dakota, 1945, no. 50, p. iv ; Amer. Min., 1946,...fractured surfaces of lithiophilite, from Custer, South Dakota. Named after Prof. Edson Sunderland Bastin...Celsian, containing CaO 4%, from Broken Hill, New South Wales. Calogerasite. C. P. Guimar~es, 1944. Minera~o...needles in manganese ore from Gamagara ridge, Postmasburg, South Africa. Named from the locality. [M.A |  | | Book | | 2. Model Test Area: Moanda Deposit, Gabon, West Africa 2.2.2.1. Introduction 20 20 23 23 23 25 25 27...Postmasburg Region, Griqualand West, Cape Province, South Africa 3.3.1. Geological Setting 3.3.2. Genesis...Manganese Ore Formation Manganese Ore Deposits of North Africa: Imini, Morocco 3.4.1. Geological Setting 3.4.2...Oxidation and Karst Ore Accumulation of the Enisei Ridge Mn Deposits (Central Siberia) 3.5.2.1. Geological...ancient glaciers, and the glaciation epoch of the northern countries - in Scotland, in Scandinavia, in Finland |  | | Journal (volume) | | Approach to the Sishen South Iron Ore Deposit, Northern Cape Province, South Africa, and Its Implication...Deposit, Simandou Range, Republic of Guinea, West Africa I. L. Cope, J. J. Wilkinson, A. J. Boyce, J. B...ore exploration project in the Northern Cape province of South Africa. He completed his B.Sc. (Hons)...as on the Sishen South iron ore deposit in the Northern Cape province of South Africa. his work on depositional...and Draper Award of the Geological Society of South Africa and Honorary Fellow of the Geological Society |  | | 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 | | prehnite, Colonel Hendrik von Prehn, of Cape Town, South Africa. samarskite, Colonel V. E. von Samarski-Bykhovets...in the Azores. gamagarite, Gamagara ridge, Postmasburg district, South Africa. garronite, Garron plateau...in Sierra Almagrera, Spain. joaquinite, Joaquin ridge of the Diablo Mountain range, California. kitkaite...Mount Vesuvius, Italy. wairauite, Wairau Valley, South Island, New Zealand. yugawaralite, Yugawara hot...bultfonteinite, Bultfontein diamond mine, Kimberley, South Africa. carlinite, Carlin gold deposit, Eureka County |  | Gaines, Richard V., Skinner, H. Catherine W., Foord, Eugene E., Mason, Brian, Rosenzweig, Abraham, King, Vandall T. (1997) Dana's New Mineralogy (8th ed.) Wiley-Interscience. p.1872 | Book (edition) | | Smithsonian Inst., Washington, D.C. Alan Pring: South Australian Museum, Adelaide, SA, Australia. Gunnar...10. India 11. South east Asia 12. Middle East 13. African Countries, from north to south 14. Oceania 15...15. Australia 16. Antarctica 17. South America The localities section includes a description of the...Oregon Pennsylvania Puerto Rico Rhode Isand South Carolina South Dakota Tennessee Texas Utah Vermont Virginia...Yukon States, Australia New South Wales Northern Territory Queensland South Australia Tasmania Victoria |  | | Book | | CALCUTTA MADRAS KARACHI IBADAN NAIROBI DAR ES SALAAM CAPE TOWN Published in the USA by Oxford University...composition 5Mg0.3Si02.3^-4H20, from Mt. Tkhach, northern Caucasus. This is perhaps the ‘new variety of...colourless, monoclinic crystals from Kimberley, South Africa. Named after Mr. Alpheus Fuller Williams, of...1918. Geol. Survey S. Africa, Mem. no. 12, p. 20 et seq., Trans. Geol. Soc. S. Africa, 1919, vol. xxi, p...initial letters of the company ‘Asbestos Mines of South Africa’. 8th List [Original material is Actinolite |  | | Book (edition) | | Aus1rnlia. Thomas Nelson Aus1r.1lia. 102 Dodds S1rce1. South Mdbournc. Vic1oria 3205. Auslr.ilia Chapman & Hall...9 (for 1 952). p. 99. From (TL) Crackers Well. South Australia. Australia. Deposit located by air-borne...1 892) Syst. Mi11., 6th ed .. p. 50. A term of South American origin describing galena in granular form...(Doklady) Acad. Sci. URSS, 22, 433. (TL) Mt Tkhach. northern Caucasus. USSR. Adinole. syn. of albite. F.S....Z=4 fPDF 29-330). (TL) Dutoitspan, Kimberley, South Africa. Named for A.F. Williams. Agalitc, syn. of talc |  | | Book (edition) | | Newc Newcastle Coalfield, England. N.S.W. New South Wales, Australia. N.Z. New Zealand. 6 Norf ...Wales. Pac Pacific Coast, U.S.A. Pat Patagonia, South America. Port Portuguese (mostly in Brazil). ...of South Africa. S. Am South America. S. Staff South Staffordshire, England. S. Wales South Wales...Transvaal, Republic of South Africa. U.K. United Kingdom of Great Britain and Northern Ireland. 7 U.S....Socialist Republics. Venez Venezuela. W. Afr West Africa. War Warwickshire, England. York Yorkshire |
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Lohatlha Mine, Western Belt, Gamagara Ridge, Northern Cape, South Africa