| Location: | Eastern Cape, South Africa, Africa |
| Lat / long: | -27.37994, 22.95152 |
| dep_id: | 10090140 |
| mrds_id: | W028038 |
| Commodity type: | metallic |
| Major mineral: | Manganese |
| Minor mineral: | Iron |
| Operation type: | Unknown |
| Production size: | Large ammount of material produced |
| Development status: | Producer |
| ore: | Braunite, Hausmannite |
| orebody_fm: | IRREGULAR |
| work_type: | Surface |
| conc_proc: | Indications Are Of A Syngenetic Origin, With Subsequent Supergene Enrichment. The Distinctly Layered Stratiform Orebodies Have Been Conformably Folded With The Host Rock. The Manganiferous Beds Were Probably Deposited As A Primary Sedimentary Mixture Of Manganese Hydroxide And Manganese And Calcium Carbonates, With Localized Iron Hydroxide And Calcium - Magnesium Carbonate. |
| ore_ctrl: | Gentle Uplift Of Continental Mass; Minor Folding And Faulting; Erosion; Manganiferous Solutions Circulated Through Tectonically Disturbed Banded Ironstone (Syngenetically) To Give Rise To Metasomatic Replacement Of The Country Rock With Manganese Along Favorable Layers. |
| Reporter: | Sweetwood, Charles W., Mccarter, Lorna D, Mccarter, Lorna D. |
| hrock_type: | Iron Formation |
| arock_type: | Volcanic Rock (Aphanitic) |
| Structure: | Low Intensity Anticlines And Synclines Regionally. Post-Transvaal System Dike Intrusives (Granitic) Occur Intermittently. Faulting Intermittent And Of Limited Magnitude., Orebody Occurs In N - S Trending Asymmetrical Syncline. Dips Gentle, Though Variable. Minor Faulting. Ore Horizon (Basal Member) Massive. Major Dike Intrusive Generally Terminates (But Does Not Control) Ore At The South End Of The Deposit. Recent, Surface, Sand Fully Masks Off Visible Presence Of Orebody. Topography Flat. |
| tectonic: | Platform; Possibly Several Tectonic Cycles. |
| Year first produced: | 1963 |
| disc_yr: | 1950 |
| References: |
- Deposit:: MINERAL RESOURCES OF THE REPUBLIC OF SOUTH AFRICA, FIFTH EDITION, HANDBOOK 7 , DEPARTMENT OF MINES, GEOLOGICAL SURVEY; 1976
- Deposit:: MINERAL RESOURCES OF SOUTH-CENTRAL AFRICA; PELLETIER, R. A.; 1964
- Deposit:: THE MANGANESE DEPOSITS OF THE UNION OF SOUTH AFRICA, HANDBOOK 2 , DEPARTMENT OF MINES, GEOLOGICAL SURVEY; 1960
- Other Database:: ISMI
- Production:: SOUTH AFRICAN MANGANESE AMCOR LIMITED ANNUAL REPORTS, 1974 - 1976 , AND SOUTH AFRICAN MANGANESE AMCOR LIMITED BROCHURE; CIRCA 1976. AFTER 1976: PRESS RELEASES & SOUTH AFRICAN MINERALS BUREAU ; ESTIMATE BASED ON TOTAL COUNTRY MANGANESE PRODUCTION SUPPLIED BY MINERALS BUREAU, AND VERBAL INFORMATION FROM SAMANCOR OFFICIALS.
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