Mine detail: Free State Saaiplaas

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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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