Mine detail: Winkelhaak Mine

Previously called ''

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Location

Lat / long:

-26.49658, 29.16811

Resource(M)

Primary:	Gold
Secondary:	PGE, Osmium, Platinum, Iridium, Rhodium, Ruthenium, Silver
Tertiary:	Subbituminous, Sulfur-Pyrite
Ore:	Chalcopyrite, Galena, Pyrite, Pyrrhotite, Sphalerite, Uraninite
Orebody form:	TABULAR/BLANKET
Discovery year:	1951

Production

Operation type:	Unknown
Production size:	Large
Development status:	Producer
First production started:	1958

Geology

Host rock:	Ecca Series, Karroo System; Shale, Sandstone & Coal;Transvaal System--Dolomite;Witwatersrand System (Upper Division)-Quartzite, Shales, Grits And Conglomerates
Host type:	Quartzite,Shale,Conglomerate
Associated rock:	Ventersdorp System-Lava
Associated type:	Volcanic Rock (Aphanitic)
Structure:	Unique Continuity Of Gold-Bearing Horizons Over Extended Area, Though Well Marded By Folding, Faulting And (Locally) Erosion And Redeposition Of Overlying Conformable Sediments., Synclinal Basin Separated From Central And East Rand Occurrences Of The Witwatersrand System. Unconformable Ecca Series, Karroo System Shales, Sandstones And Coal Are Not Notable. Dips Variable; Faulting Severe.
Tectonic:	Platform
Alteration processes:	None

References

MRDS	W026846
DEP	10078498
Reference	{Deposit:: UNION CORPORATION LIMITED, ANNUAL REPORT; 1975}{Deposit:: MINERAL RESOURCES OF SOUTH-CENTRAL AFRICA; PELLETIER, R. A.; 1964}{Deposit:: MINING JOURNAL QUARTERLY REVIEW OF SOUTH AFRICAN GOLD SHARES, VOL. 19 , NO. 1 ; MAY 1975}{Deposit:: MERTIE, 1969, ECONOMIC GEOLOGY OF PLATINUM METALS: U.S. GEOLOGICAL SURVEY PROFESSIONAL PAPER 630, P. 45-48.}{Deposit:: COUSINS, 1973, PLATINOIDS IN THE WITWATERSRAND SYSTEM: JOURNAL OF SOUTH AFRICA INSITUTE OF MINING AND METALLURGY, V. 73, NO. 6, P. 3-5.}{Deposit:: WAGNER, 1929, PLATINUM DEPOSITS AND MINES OF SOUTH AFRICA: STRUIK (PTY) LTD., CAPETOWN 1973, P. 32-40.}{Deposit:: MINING JOURNAL, 1977, V. 288.}{Deposit:: IVOR JONES, ROY & COMPANY, INC., SOUTH AFRICAN GOLD SHARES: JOHANNESBURG, IVOR JONES, ROY & COMPANY, INC.}{Deposit:: MINING JOURNAL, 1975, QUARTERLY REVIEW OF SOUTH AFRICAN SHARES: MINING JOURNAL, V. 19, NO. 1, MAY 1975.}{Production:: CHAMBER OF MINES OF SOUTH AFRICA ; CHAMBER OF MINES ANALYSIS OF WORKING RESULTS-1982 ; CHAMBER OF MINES ANALYSIS OF WORKING RESULTS - 1983 ; CHAMBER OF MINES ANALYSIS OF WORKING RESULTS - 1984 ; WINKELHAAK ANNUAL REPORT - 1985 ; CHAMBER OF MINES ANALYSIS OF WORKING RESULTS-1986 ; ANALYSIS OF WORKING RESULTS, CHAMBER OF MINES OF SOUTH AFRICA. JANUARY - DECEMBER 1979 ; CHAMBER OF MINES OF SOUTH AFRICA, ANALYSIS OF WORKING RESULTS. JANUARY - DECEMBER, 1980 ; CHAMBER OF MINES OF SOUTH AFRICA - ANALYSIS OF WORKING RESULTS - 1981 ; 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, 1977}
Reporter	Sweetwood, Charles W., Mccarter, Lorna D, Mccarter, Lorna D.