| Location: | Free State, South Africa, Africa |
| Lat / long: | -26.91326, 26.75147 |
| dep_id: | 10071448 |
| mrds_id: | W014845 |
| Commodity type: | metallic and nonmetallic |
| Major mineral: | Gold |
| Minor mineral: | Sulfur, Sulfuric Acid, PGE, Platinum, Osmium, Iridium, Ruthenium, Rhodium, Sulfur-Pyrite, Silver |
| Trace mineral: | Uranium |
| Operation type: | Unknown |
| Production size: | Large ammount of material produced |
| Development status: | Producer |
| ore: | Gold, Pyrrhotite, Sperrylite |
| orebody_fm: | TABULAR/BLANKET |
| work_type: | Underground |
| model: | 193: Quartz pebble conglomerate Au-U (BC name is Paleoplacer U-Au-PGE-Sn-Ti |
| alteration: | None |
| conc_proc: | Generally Agreed That Gold And Uranium Were Originally Deposited In Detrital Form, And That The Gold (At Least) Was Later Partly Dissolved And Redeposited Practically In Situ. |
| ore_ctrl: | Gentle Uplift Of Continental Mass; Erosion; Peneplanation; Folding; Faulting; Volcanicity; Dike Injection And Build - Up Of Younger Sediments |
| Reporter: | Sweetwood, Charles W., Mccarter, Lorna D. |
| hrock_unit: | Transvaal System-Campbell Rand Dolomite;Witwatersrand System (Upper Division)-Quartzites, Shales, Grits And Conglomerates |
| hrock_type: | Quartzite,Shale,Conglomerate |
| arock_unit: | Ventersdorp System-Lava |
| arock_type: | Volcanic Rock (Aphanitic) |
| Structure: | Unique Continuity Of Gold - Bearing Horizons Over Extended Area, Though Well Marked By Folding, Faulting And (Locally) Erosion And Redeposition Of Overlying Conformable Sediments, Uniformly - Gentle Dip, But With Local Folds And Faults. Overlying Lavas And Dolomites Are Massive. |
| tectonic: | Platform |
| Year first produced: | 1941 |
| disc_yr: | 1887 |
| References: |
- Deposit:: ANGLO AMERICAN CORPORATION OF SOUTH AFRICA LIMITED; ANNUAL REPORTS: 1974 & 1975
- Deposit:: MINING JOURNAL QUARTERLY REVIEW OF SOUTH AFRICAN GOLD SHARES; VOLUME 19, NO. 1: MAY 1975
- Deposit:: SOUTH AFRICAN GOLD SHARES; IVOR JONES, ROY AND CO., INC., JOHANNESBURG; 1975
- Deposit:: MINERAL RESOURCES OF SOUTH - CENTRAL AFRICA; PELLETIER, R. A.; 1964
- Deposit:: MERTIE, 1969, ECONOMIC GEOLOGY OF PLATINUM METALS: U.S. GEOLOGICAL SURVEY PROFESSIONAL PAPER 630, P. 45-48.
- Deposit:: COUSINS, 1973, PLATINOIDS OF THE WITWATERSRAND SYSTEM: JOURNAL OF SOUTH AFRICA INSTITUTE OF MINING AND METALLURGY, V. 73, NO. 6, P. 3-5.
- Deposit:: WAGNER, 1929, PLATINUM DEPOSITS AND MINES OF SOUTH AFRICA: STRUIK (PTY) LTD., CAPETOWN 1973, P. 32-40.
- Deposit:: FEATHER, 1976, MINERALOGY OF THE PLATINUM-GROUP MINERALS IN THE WITWATERSRAND: ECONOMIC GEOLOGY, V. 71, NO. 7, P. 1419.
- Deposit:: MINING JOURNAL, 1977, V. 288.
- Deposit:: COAL, GOLD, AND BASE MINERALS OF SOUTHERN AFRICA, 1973, MARCH 1973.
- Deposit:: SOUTH AFRICAN MINING AND ENGINEERING JOURNAL, 1975, SEPTEMBER 1975.
- Production:: CHAMBER OF MINES OF SOUTH AFRICA ; CHAMBER OF MINES ANALYSIS OF WORKING RESULTS - 1983 ; CHAMBER OF MINES ANALYSIS OF WORKING RESULTS - 1984 ; CHAMBER OF MINES ANALYSIS OF WORKING RESULTS - 1985 ; CHAMBER OF MINES ANALYSIS OF WORKING RESULTS-1986 ; ANALYSES OF WORKING RESULTS, CHAMBER OF MINES OF SOUTH AFRICA - 1980 ; CHAMBER OF MINES OF SOUTH AFRICA - ANALYSIS OF WORKING RESULTS - 1981 ; CHAMBER OF MINES ANALYSIS OF WORKING RESULTS-1982 ; ANALYSIS OF WORKING RESULTS, CHAMBER OF MINES OF SOUTH AFRICA, JANUARY - DECEMBER 1978 ; ANALYSIS OF WORKING RESULTS, CHAMBER OF MINES OF SOUTH AFRICA. JANUARY - DECEMBER 1979 ; ANALYSIS OF WORKING RESULTS, CHAMBER OF MINES OF SOUTH AFRICA, JANUARY-DECEMBER 1977
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