Location: | Free State, South Africa, Africa |
Lat / long: | -27.97988, 26.83482 |
dep_id: | 10071449 |
mrds_id: | W014847 |
Commodity type: | metallic |
Major mineral: | Gold |
Minor mineral: | PGE, Silver, Uranium |
Operation type: | Unknown |
Production size: | Large ammount of material produced |
Development status: | Producer |
ore: | Gold |
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: | Upper Elsburg Conglomerates And Quartzites;Karroo System Conglomerates And Shales |
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 Faulting, Folding And (Locally) Erosion And Redeposition Of Overlying Sediments., Gentle Dip Regionally, With Folds And Faults Locally. Overlying Lavas, Quartzites And Conglomerates Are Massive |
tectonic: | Platform |
Year first produced: | 1961 |
References: |
- Deposit:: ANGLO AMERICAN CORPORATION OF SOUTH AFRICA LIMITED: ANNUAL REPORTS: 1974 & 1975
- Deposit:: COAL, GOLD & BASE MINERALS OF SOUTHERN AFRICA; MARCH 1975
- Deposit:: PRESIDENT BRAND GOLD MINING COMPANY LIMITED; ANNUAL REPORT; 1975
- Deposit:: MINERAL RESOURCES OF SOUTH - CENTRAL AFRICA; PELLETIER, R. A.; 1964
- Deposit:: SOUTH AFRICAN GOLD SHARES; IVOR JONES, ROY AND CO., INC., JOHANNESBURG; 1975 MINING JOURNAL QUARTERLY REVIEW OF SOUTH AFRICAN GOLD SHARES, VOL. 19, NO. 1; MAY 197
- Production:: ANALYSES OF WORKING RESULTS, CHAMBER OF MINES OF SOUTH AFRICA, 1980 ; ANALYSES OF WORKING RESULTS, CHAMBER OF MINES OF SOUTH AFRICA - 1980 ; 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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