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Platinum Exploration Geologist

Exploration and Geology Department, Platinum Group Metals Division,
Impala Platinum Limited, General Mining Union Corporation Limited,
Johannesburg, Transvaal, Republic of South Africa
October, 1986 - August, 1987

Job Title:
Platinum Exploration Geologist
 
Employer:
Exploration and Geology Department, Platinum Group Metals Division, Impala Platinum Limited, General Mining Union Corporation Limited, PO Box 222, Springs 1560, Johannesburg, Transvaal, Republic of South Africa.
 
Corporation:
Gencor is one of the world's largest mining companies. The group is a major diversified international resources group, with important investments in Gengold (gold), Implats (platinum), Ingwe (coal), Alusaf/Billiton (aluminium and related commodities), and Samancor (ferroalloys, chrome and manganese ores and alloys, stainless steel and nickel).
 
Company:
Impala Platinum Holdings (Implats) is a South African company which is listed on the Johannesburg Stock Exchange and now owns owns Impala Platinum Ltd. Gencor (46.5%) and Sanlam are the major shareholders. The company mines, refines and markets platinum group metals, nickel and copper. The company is currently the world's second largest producer of platinum group metals. It sold over one million ounces of platinum in a year.
 
Project description:
Project Delta (Houtenbek): Research and motivation of the exploration project: Includes ground acquisition, exploration drilling and project evaluation; collection and interpretation of geological data (surface mapping, core logging, sampling, research). Project concentrated on the known platinum-bearing horizons in the Bushveld Complex, namely the Merensky Reef and the UG 2 Chromitite Layer.
 
Fieldwork:
Seven Months fieldwork in the Eastern Bushveld Igneous Complex, Transvaal, South Africa as a Platinum Exploration Geologist. Aimed to relate the stratigraphic transgression between the Upper and Main-Critical Zones mapped on the surface to drilling exploration results and formulate a 3D projection below the topographic horizon to suggest whether exploration and mining of the sub-outcrop reefs was a viable option. An area of 150 square kilometers was mapped and seven drilling rigs supervised to assess the Platinum-Group Element (PGE) potential (Merensky Reef and UG2 Chromitite Reef) of the region.
 
Management Duties:
Reported daily telephone memos to the Senior Geologist and weekly exploration reports to the Chief Geologist; regular discussion and verbal consultation on reef intersections as well as deflection procedures for reefs. Consultation including budget reconciliation. Project budget of 1.2 million Rand (£ 500, 000 / $1,000,000) was managed.
 
Geological Duties:
Field mapping (with use of plane table and alidade, level and theodolites - precision, universal and compact); geophysical survey co-ordination and seismic interpretation; geochemistry, routine core logging, sampling of all mineral horizons and special logging; cutting, preparation and sampling of all potential economic horizons with mineral analysis; special sampling and soil survey techniques; assaying and interpretations; evaluations and report writing; collection, collation and interpretation of geological data for report writing with core logging, drafting and recommendations; data research for target generation; mineral claims and option analysis; ore reserve calculation and prospect evaluation with geostatistics, aerial photograph interpretation; construction of geological, structural and isopach maps.
 
Drilling Duties:
Diamond drilling instruction and implementation (long year 38 and 45, Sullivan 45 and 50) including wedging (Directional and non-directional); Marland surveying and Plumb-bob percussion drilling; 'fishing' coordination; surveys (Marland stratimetric survey instrument for wireline); Use of Sperry Sun / Eastman Compass Clinometer for boreholes and the Pajari instrument; structural interpretations, detailed core logging and sampling (with reference to stratigraphical, structural, lithological and ore grade parameters); down-the-hole logging - borehole surveys and temperature survey; borehole siting; special reports with reef descriptions, assay and analysis for sedimentological and ore trend analysis; supervision of 7 surface exploration drilling rigs under Government regulations and legal requirements.
 
Courses studied:
Field-based analysis of tectonic structures.
  • Economic Geology Research Unit, University of Witwatersrand, Johannesburg, South Africa.
Structural methods for the exploration geologist.
  • Economic Geology Research Unit, University of Witwatersrand, Johannesburg, South Africa.
Economic evaluation and investment decision methods.
  • GENCOR exploration training scheme.
Project evaluation techniques.
  • GENCOR exploration training scheme.
Techniques of drilling: Equipment and procedures.
  • South African Drilling Association.
Short course on Platinum-Group Element exploration.
  • Economic Geology Research Unit, University of Witwatersrand, Johannesburg, South Africa.
Short course on Platinum-Group Element production.
  • Economic Geology Research Unit, University of Witwatersrand, Johannesburg, South Africa.
Mining Geology of Bushveld PGE deposits.
  • GENCOR exploration training scheme.
Concentration and processing of Bushveld ores.
  • GENCOR exploration training scheme.
Aerial photography and geological interpretation.
  • GENCOR exploration training scheme.
Drilling for exploration geologists.
  • GENCOR exploration training scheme.
Assay procedures for reef analysis.
  • GENCOR exploration training scheme.
Structural methods for exploration geologists.
  • GENCOR exploration training scheme.
Platinum Group Element Exploration.
  • GENCOR exploration training scheme.
 
General:
Attended symposia, conferences, divisional meetings and departmental meetings.

     

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