Description
Dr. R. Krahmann, West Witwatersrand Areas Limited
Commodities
PrimaryGold
SecondaryPGE, Platinum, Osmium, Iridium, Ruthenium, Rhodium, Silver, Sulfur-Pyrite, Sulfur, Sulfuric Acid
TertiaryUranium
Commodity typeB
Deposit
Model193: Quartz pebble conglomerate Au-U (BC name is Paleoplacer U-Au-PGE-Sn-Ti
Deposit sizeL
WorkingsUnderground
Orebody formTABULAR/BLANKET
Ore controlGentle Uplift Of Continental Mass; Erosion; Peneplanation; Folding; Faulting; Volcanicity; Dike Injection And Build-Up Of Younger Sediments.
Materials
Ore mineralsChalcopyrite, Galena, Pyrite, Pyrrhotite, Sphalerite, Uraninite
Geology
Host rockQuartzite,Shale,Conglomerate · Transvaal System Shales (Pretoria Series), Dolomite (Dolomite Series) And Conglomerates (Black Reef Series);Witwatersrand System (Upper Division)-Quartzites, Shales, Grits, Conglomerates And Carbon Granules
Associated rockVolcanic Rock (Aphanitic) · Ventersdorp System-Lava
StructureUnique Continuity Of Gold-Bearing Horizons Over Extended Area, Though Well Marked By Dikes, Faulting, Early Erosion And Redeposition Of Overlying Sediments., Steeply Dipping Compared To Most Other Measured Occurrences In This General Area. Faulting, Folding And Undulation Of The Beds Are Characteristic Locally. Intrusive Dikes Penetrate And Dilute Minable Ore Horizons. Lavas And Dolomites Are Massive.
Tectonic settingPlatform
AlterationNone
Economic & production
Development statusProducer
First production1939
Discovery year1932
Identification
Deposit ID10090139
MRDS IDW027858
RegionAF
Data scoreA
Coordinates-26.29661, 27.63479
References
MINERAL RESOURCES OF THE REPUBLIC OF SOUTH AFRICA, FIFTH EDITION, HANDBOOK 7 ; 1976MINERAL RESOURCES OF SOUTH-CENTRAL AFRICA; PELLETIER, R.A.; 1964GOLD FIELDS OF SOUTH AFRICA LIMITED, ANNUAL REPORTS, 1974 - 1977MERTIE, 1969, ECONOMIC GEOLOGY OF PLATINUM METALS: U.S. GEOLOGICAL SURVEY PROFESSIONAL PAPER 630, P. 45-48.COUSINS, 1973, PLATINOIDS IN THE WITWATERSRAND SYSTEM: JOURNAL OF SOUTH AFRICA INSTITUTE OF MINING AND METALLURGY, V. 73, NO. 6, P. 3-5.WAGNER, 1929, PLATINUM DEPOSITS AND MINES OF SOUTH AFRICA: STRUIK (PTY) LTD., CAPETOWN 1973, P. 32-40.MINING JOURNAL, 1977, V. 288.VENTERSPOST GOLD MINING COMPANY, 1977, ANNUAL REPORTS.^253 VENTERSPOST GOLD MINING COMPANY, 1976, ANNUAL REPORTS.^253 VENTERSPOST GOLD MINING COMPANY, 1975, ANNUAL REPORTS.^253 VENTERSPOST GOLD MINING COMPANY, 1974, ANNUAL REPORTS.^253 IVOR JONES, ROY AND COMPANY, INC.^253 MINING JOURNAL, 1975, MINING JOURNAL, V. 19, NO. 1CHAMBER OF MINES OF SOUTH AFRICA ; CHAMBER OF MINES ANALYSIS OF WORKING RESULTS - 1984 ; CHAMBER OF MINES ANALYSIS OF WORKING RESULTS - 1985 ; CHAMBER OF MINES ANALYSIS OF WORKING RESULTS-1986 ; CHAMBER OF MINES OF SOUTH AFRICA - ANALYSIS OF WORKING RESULTS - 1981 ; CHAMBER OF MINES ANALYSIS OF WORKING RESULTS-1982 ; CHAMBER OF MINES ANALYSIS OF WORKING RESULTS - 1983 ; ANALYSIS OF WORKING RESULTS, CHAMBER OF MINES OF SOUTH AFRICA. JANUARY - DECEMBER 1979 ; ANALYSES OF WORKING RESULTS, CHAMBER OF MINES OF SOUTH AFRICA - 1980 ; ANALYSIS OF WORKING RESULTS, CHAMBER OF MINES OF SOUTH AFRICA. JANUARY - DECEMBER 1978