Mine detail: Impala Platinum

Lat / long:

-25.54664, 27.21812

Host type:	Mafic Intrusive Rock,Gabbro
Associated rock:	Merensky Reef, Bushveld Igneous Complex
Associated type:	Mafic Intrusive Rock
Structure:	Inward-Dipping Cone-Like Structure; Folding And Faulting (Including Low-Angle Thrusting) Exists, But Are Of Minor Importance; Erosion, Peneplanation And Build-Up Of Younger Sediments Are Basic Criteria Regionally., The Merensky Reef Is Extraordinarily Uniform As To Composition And Thickness. Faults And Folds, Locally, Are Almost Non-Existent. An Oxidized Zone Extends Down-Dip For An Average Of 200 Meters, Followed By Unaltered Sulfide Zones. The Hanging Wall Is Spotted Porite Underlain By Pseudo-Porphyritic Pyroxenitic Diallage-Norite, Feldspathic Pyroxenite, A Chrome-Rich Layer, And A Footwall Of Anorthositic Norite.
Tectonic:	Platform
Alteration processes:	Surface And Near-Surface Alteration Of Feldspathic Material Only

MRDS	W028271
DEP	10089690
Reference	{Deposit:: MINERAL RESOURCES OF THE REPUBLIC OF SOUTH AFRICA, FIFTH EDITION, HANDBOOK 7 ; 1976}{Deposit:: IMPALA PLATINUM LIMITED; BROCHURE; CIRCA 1977}{Deposit:: COAL, GOLD & BASE MINERALS OF SOUTHERN AFRICA; JANUARY 1973}{Deposit:: WORLD MINING; FEBRUARY 1969}{Deposit:: IMPALA PLATINUM LIMITED, 1977, ANNUAL REPORT.}{Deposit:: IMPALA PLATINUM LIMITED, 1976, ANNUAL REPORT.}{Deposit:: IMPALA PLATINUM LIMITED, 1975, ANNUAL REPORT.}{Deposit:: IMPALA PLATINUM LIMITED, 1974, ANNUAL REPORT.}{Deposit:: SOUTH AFRICAN MINING AND ENGINEERING JOURNAL, 1975, PLATINUM: SOUTH AFRICAN MINING AND ENGINEERING JOURNAL.}{Deposit:: WAGNER, P.A., 1926, PRELIMINARY REPORT ON THE PLATINUM DEPOSITS IN THE SOUTHEASTERN PART OF THE RUSTENBURG DISTRICT, TRANSVAAL: DEPARTMENT OF MINES AND INDUSTRIES, GEOLOGICAL SURVEY.}{Production:: CONSULATE ESTIMATES. DATA FROM OFFICIAL SOUTH AFRICAN GOVERNMENT (I.E. DEPARTMENT OF MINES, MINERALS BUREAU) AND COMPANY ANNUAL REPORTS ARE UNAVAILABLE.}
Reporter	Sweetwood, Charles W.