Commodities
PrimaryManganese
SecondaryIron
Commodity typeM
Deposit
Deposit sizeL
WorkingsUnderground
Orebody formTABULAR/BLANKET
Ore controlGentle Uplift Of Continental Mass; Minor Folding And Faulting; Erosion; Manganiferous Solutions Circulated Through Tectonically Disturbed Banded Ironstone (Syngentically) To Give Rise To Metasomatic Replacement Of The Country Rock With Manganese Along Favorable Layers.
Materials
Ore mineralsBixbyite
GangueClay
Geology
Host rockVolcanic Rock (Aphanitic)
Associated rockVolcanic Rock (Aphanitic)
StructureLow Intensity Anticlines And Synclines Regionally. Faulting Intermittent And Of Limited Magnitude, Orebodies Dip Gently Westward With Only Minor Undulations. Two Post-Mineral, Normal, Faults Exist Within The Central Portion Of The Minable Zone ( 20 - 40 Meter Throws), But Neither Are Located In Current Minng Areas And Not Expected To Influence Operations For A Number Of Years.
Tectonic settingPlatform; Possibly Several Tectonic Cycles
Economic & production
Development statusProducer
First production1973
Discovery year1951
Identification
Deposit ID10079219
MRDS IDW028267
RegionAF
Data scoreB
Coordinates-27.09662, 22.86819
References
MINERAL RESOURCES OF THE REPUBLIC OF SOUTH AFRICA, FIFTH EDITION, HANDBOOK 7 , DEPARTMENT OF MINES, GEOLOGICAL SURVEY; 1976MINERAL RESOURCES OF SOUTH-CENTRAL AFRICA; PELLETIER, R. A.; 1964THE MANGANESE DEPOSITS OF THE UNION OF SOUTH AFRICA, HANDBOOK 2 , DEPARTMENT OF MINES, GEOLOGICAL SURVEY; 1960SOUTH AFRICAN MANGANESE AMCOR LIMITED ANNUAL REPORTS, 1974 - 1976 , AND SOUTH AFRICAN MANGANESE AMCOR LTD. BROCHURE; CIRCA 1976. AFTER 1976: PRESS RELEASES & SOUTH AFRICAN MINERALS BUREAU ; ESTIMATE BASED ON TOTAL COUNTRY PRODUCTION OF MANGANESE (SUPPLIED BY MINERALS BUREAU) AND INFORMATION SUPPLIED BY SAMANCOR OFFICIALS.