Marebera - Exploration And Mining Geologist - Johannesburg, GP, South Africa

Lesley Marebera

Johannesburg, GP, South Africa

Services

Exploration And Mining Geologist

Summary:

I am a Geologist with over 7 years’ experience in both mining and exploration environments

I have been exposed to the following commodities Platinum and PGMs, Gold, Copper, Cobalt, Chrysotile, Heavy Mineral Sands (Zircon, Rutile and Ilmenite) ,Iron Ore (magnetite and hematite), Manganese and Vanadium

I have worked in The Mid Zambezi Karoo Basins (Coal), Central African Copper belt. (DRC and Zambia) for Cu & Co , Platinum and PGMs in Layered Ultra Mafic Complexes (Great Dyke-Zimbabwe and Eastern Bushveld Igneous Complex – South Africa).Archaean Greenstone hosted Gold mineralization in West Africa – Ghana, Mali and Zimbabwe

Work History

Project Geologist

GeoActiv - South Africa

January 2012 - February 2014

Project Geologist

GeoActiv Consultancy

January 2012 - February 2014

Iron Ore, Titanium Sands and Gold Exploration in various projects in South Africa, Mozambique and Mali
Responsibilities
• Management of Exploration projects for various clients
• Exploration of the projects, reconnaissance and detailed evaluations
• Managing Diamond drilling, RC drilling and Aircore drilling

Senior Project Geologist

CCIC - Zambia

July 2011 - December 2011

Consultant Geologist

Newmont Gold Limited

January 2011 - June 2011

Ghana

Senior Project Geologist

Caracle Creek International Consultancy

July 2011 - December 2011

Copper, Cobalt and Base Metals Exploration in various projects in the Zambian Copper Belt
Responsibilities:
• Management of Exploration projects for various clients
• Developing exploration strategy and target generation
• Plan, execute and manage all geological drilling for the projects
• Exploration of the projects, reconnaissance and detailed evaluations
• Preparation and budgeting of exploration work programmes.
• Management of the mapping activities (Structural and Geological)
• Management of all sampling activities (Geochemical Soil Sampling and Core Sampling)
• Field supervision and training of Geological Technicians & Junior Geologists
• Liaising with consultants and contractors regarding company business.
• Liaising with public service officials, land owners, land users and other stakeholders regarding company business
• Preparation of geological reports, monthly and weekly
• Control HSEQ aspects pertaining to exploration and drilling
• Assist and control drafting of geological model, update and presentation
• Evaluation of the mineral resources and reserve estimations,
• Data management, QA/QC monitoring

Consultant Geologist

Newmont Gold - Ghana

January 2011 - June 2011

Shear Hosted Gold deposits Exploration in Ashanti/Akyem mobile belt - Ghana
Responsibilities:

• Drilling supervision and management of all drilling contractors, drilling reports assessment
• Data management, QA/QC monitoring
• Core logging (Geological and Geotechnical)
• Management of all sampling activities (Geochemical Soil Sampling and Core Sampling)
• Implementation and control of HSEQ aspects

Project Geologist

CCIC - Zambia

May 2010 - December 2010

Project Geologist

Caracle Creek International Consultancy

May 2010 - December 2010

Copper, Cobalt and Base Metals Exploration in various projects in the Zambian Copper Belt
Responsibilities:

• Management of Exploration projects for various clients from Geochemical Soil sampling to Drilling
• Drilling supervision and management of all drilling contractors, drilling reports assessment
• Core logging (Geological and Geotechnical)
• Data management, QA/QC monitoring


Aug 2009 - Apr 2010 Farvic Gold Mine - Zimbabwe
Position Held: Mine & Exploration Geologist
• Board and Pillar Mining in Shear Hosted Gold Deposit - Gwanda Greenstone Belt

Responsibilities:
• Grade control - Reef indentification, maintainance, control of mining widths, blending and dilution
• Analysis and plotting of Lab or Assay results
• Mine Planning for Development and Production
• Underground mapping (Geological and Geotechnical)
• Managing Sampling and quality control of sampling standards
• Core logging (Geological and Geotechnical)
• Preparation of geological reports, monthly and weekly
• Work scheduling and records keeping
• Implementation and control of HSEQ aspects
• Rock mechanics - Mine support budgets, assessment of mining blocks, Pillar design, bolting and timbering
• Underground and Surface Diamond drilling (Exploration and Evaluation) - planning, scheduling and monitoring

Mine & Exploration Geologist

Farvic Gold Mine - Zimbabwe

August 2009 - April 2010

Exploration Geologist

MSA Groupservices - South Africa

November 2007 - August 2009

Exploration Geologist

MSA Group Services

November 2007 - August 2009

• Platinum Group Elements - Eastern Bushveld Igneous Province (Rustenburg Layered Suite), South Africa
• Copper, Cobalt and Base Metals Exploration in various projects in the Central African Copper Belt - DRC

Responsibilities
• Management of Exploration projects for various clients from Geochemical Soil sampling to drilling
• Core logging (Geological and Geotechnical)
• Geological mapping and Regolith mapping
• Data capturing and Data QA/QC
• Monthly and weekly reports

Section Geologist

AAMines Pvt Ltd

June 2006 - October 2007

Zimbabwe

Commodities - Gold, Platinum & PGMs, Iron Ore (Hematite and Magnetite), Vanadium, Copper, Cobalt, IOCG deposits, Chrysotile and Heavy sands (Titanium and Zirconium)

Section Geologist

African Associated Mines - Zimbabwe

June 2006 - October 2007

Block Caving/Sub Level Caving - Shabanie Ultra Mafic Complex - Chrysotile Asbestos
Responsibilities
• Grade control - Dilution control, product specifications and blending as and when required
• Mine Planning for Development and Production
• Underground mapping (Geological and Geotechnical)
• Sampling and quality control of sampling standards
• Core logging (Geological and Geotechnical)
• Updating plans and sections for development and production
• Preparation of geological reports, monthly and weekly
• Work scheduling and records keeping
• Training of Samplers, Geotechnicians and Trainee Geologists
• Implementation and control of HSEQ aspects
• Enforcing company and NEC's disciplinary codes
• conflict resolution and representation of subordinates


Rock Mechanics
• Rock mechanics assessment of mining blocks
• Preparing Rock mechanics and Mine support budgets
• Support systems designing(Stope Pillar design, Timber, TH Arches and Rock bolts)
• Support recommendations(Rock bolts, TH Arches, Wire mesh, Shot Crete, Staples, Timbers)
• Updating Geomechanics plans
• Uniaxial Compressive Tests and Point Load Tests
• Supervision of rock mechanics assistants
• Compilation of monthly and weekly progress reports
• Underground and Surface monitoring for ground movement, caving and subsidence
• Monitoring Mine support installation and standards

Diamond Drilling - Underground
• Diamond drilling (Exploration and Evaluation)
• Supervision and Monitoring of drilling performance
• Planning current and future holes
• Issuing layouts for evaluation and Exploration
• General upkeep and transportation of core


Computer Applications
ArcGIS 9.3 - Fair
Stones - Fair
Sable - Data entry
Microsoft Word, Excel and Access

Fieldwork, Zimbabwe

Undergraduate Project

Underground mapping and platinum reef Identification, Grade control, Mining methods, Rock mechanics and Environmental Studies. Stratigraphy and origin of the Great Dyke
(Layered Ultra Mafic Intrusions - Mimosa Platinum Mine)

Exploration and mining Geologist

Gold Mineralization

Gold Mineralization in Greenstone belts, Mine Geology & Mine support. Gold processing. Small scale Gold Mining projects and their Environmental impacts

Mid Zambezi Karoo Basin

Coal Exploration Targetting, Field mapping, Core logging, Stratigraphy of the Mid Zambezi Basin, Cross sections, Environmental impacts of coal mining, Graphic logs and Coal Geology, Sedimentary Petrology, Sedimentary Structures

Related Courses and Skills
• Advanced Diamond drilling techniques - certificate of attendance

Qualifications & Certifications

Geology

University of Zimbabwe

Dadaya High School

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