Description
Captain T. L. H. Shone
Commodities
PrimaryManganese
SecondaryIron
Commodity typeM
Deposit
Deposit sizeL
WorkingsSurface
Orebody formIRREGULAR
Ore controlGentle Uplift Of Continental Mass; Minor Folding; Erosion; Leaching Of Manganese From Dolomite; Replacement; Manganese Concentration In Shale.
Materials
Ore mineralsJacobsite, Manganite, Todorokite
Geology
Host rockShale
StructureLow Intensity Anticlines And Synclines Regionally (Principally The Maremane Anticline And Dimoten Syncline In General Vicinity Of Lohathia). Ore Horizon And Host Rocks Dip And Fold Gently Regionally, But With Dramatic Changes Locally. Occasional Dike Injections. Faulting Insignificant., Folding And Slumping Of The Ore Horizon And Host Rocks Common. Dramatic Dip Changes Locally. Minor Faulting. Ore Horizon Thickness Highly Variable (From Less Than One Meter To Over 15 Meters) Reflecting Erratic Replacement During Manganization.
Tectonic settingPlatform. Possibly Several Tectonic Cycles.
Economic & production
Development statusProducer
First production1922
Discovery year1922
Identification
Deposit ID10079126
MRDS IDW028039
RegionAF
Data scoreA
Coordinates-28.04659, 23.03486
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, 1976, BROCHURE.SOUTH AFRICAN MANGANESE AMCOR LIMITED,1976, ANNUAL REPORTS.SOUTH AFRICAN MANGANESE AMCOR LIMITED,1975, ANNUAL REPORTS.SOUTH AFRICAN MANGANESE AMCOR LIMITED,1974, ANNUAL REPORTS.ISMITHROUGH 1977: SOUTH AFRICAN MANGANESE AMCOR LTD ANNUAL REPORTS. FROM 1978 ON; PRESS RELEASES, COMPANY BROCHURES. ; ESTIMATED BASED ON TOTAL COUNTRY PRODUCTION OF MANGANESE SUPPLIED BY THE MINERALS BUREAU AND INFORMATION PEOVIDED BY SAMANCOR OFFICIALS.