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Photo of Dr Gary McArthur
Dr Gary McArthur

The first 23 years of Gary McArthur’s work experience (1971-1993) were spent as a career mine geologist, with lengthy periods at Mount Isa (Cu), Jabiluka (U-Au), Cleveland (Sn-Cu) and Hellyer (Zn-Pb-Ag-Cu). At Hellyer in Tasmania, he led the post-discovery geological team for 10 years through the drilling delineation stage, feasibility assessment, mine development and ultimately, into full production. This was followed by 5 years as part of Aberfoyle’s senior feasibility team providing geological and resource/reserve input for potential acquisition ventures and advanced exploration projects.
In the field of resource estimation, he has had lengthy experience since 1980 with the geostatistical assessment of mineral resources over a large variety of deposit styles and remains a fluent user of Datamine mining software. His association with metallurgists at Hellyer led to the development of groundbreaking advances in the often-neglected area of ore characterisation. Concurrent research on sulphide microtextures within the Hellyer VHMS deposit led to the award of Ph.D. from the University of Tasmania in 1997.
In 1998, Dr McArthur formed McArthur Ore Deposit Assessments Pty Ltd (MODA) to provide specialised consulting services in the fields of ore microscopy, resource/reserve evaluation, mine geology and data analysis. In the field of mineralogical services, either descriptive mineragraphy or quantitative mineralogy can be provided from sulphide rock samples or ground metallurgical samples. Clients can call upon Dr McArthur’s lengthy experience in all aspects of mine geology for assistance with project feasibility work, due diligence, technical audits, detailed 3-D interpretations, resource/reserve assessments or general mentoring.

  • BSc NSW 1971, PhD UTasmania 1997
  • Mineralogical Services
  • Resource/Reserve Estimation
    Mine Geology
Areas of Practice:
  • Mineralogical services
  • Mining geology / grade control
  • Resource / Reserve estimation (inc. geostatistics)
  • Technical audit
  • Due diligence studies
Commodity Experience:
  • Base Metals
  • Gold, Silver
  • Sn-W-Ta-Nb Group
  • Uranium
Photo of Mr John McIntyre
Mr John McIntyre
Mining EngineerBehre Dolbear AustraliaMining Engineer

John has more than 40 years of experience in the management, operation and design of mines, including underground base and precious metals, surface hard-rock and coal and alluvial operations. He provides advisory services in the management, assessment and redirection of underperforming mines and projects. John has led projects in Australia, New Zealand, West Africa, PNG, the Philippines, Laos, Vietnam and North America and has prepared management reviews, technical audits, valuations, economic assessment, mine design and feasibility studies for new and existing operations.
John has been Managing Director of Behre Dolbear Australia (BDA) since 1994. BDA is the Sydney-based subsidiary of the US group, Behre Dolbear and Company Inc (BDCI), which has operated continuously as a mineral industry consultancy in North America since 1911 and has offices in Denver, New York, Toronto, Vancouver, London and Hong Kong and is recognised as a reputable international consultancy by mining companies, banks, financial institutions and groups associated with mining worldwide. BDA has established itself in Australia and the South East Asian region as a source of professional mining expertise, covering all aspects from resource/reserve definition, mine planning and operations, metallurgical and environmental planning and review, project engineering and financial analysis and valuation. Director: Takoradi Gold NL.

View John’s CV
  • BE(Hons) NSW 1971
  • MMICA,
  • FAusIMM (CP)
  • Member Australasian Institute of Minerals Valuers and Appraisers (MAIMVA)
  • Certified Minerals Valuer (CMV) #120808 004
  • Member American Institute of Minerals Appraisers (MAIMA)
  • Certified Minerals Appraiser (CMA) #2012-1
  • Mining Engineering
  • Management Advisory Services
  • Project Valuation & Assessment
Areas of Practice:
  • Mining engineering
Photo of Mr Graeme Miller Expert Witness
Mr Graeme Miller Expert Witness
MetallurgistSinclair Knight Merz Pty LtdMetallurgist

With over 25 years’ experience in process plant operations, design and commissioning, Graeme has participated in the development of the minerals processing industry and the application of novel techniques to many problems. He is Process Manager for one of Australiaýs largest consulting engineering companies. He has a degree in Chemical Engineering and during the early part of his career was involved in the operation of plants for treating: gold, uranium, pyrite, sulphuric acid, diamond recovery, coal preparation and coal utilisation. His design capability covers all of these fields as well as being recognised as one of the leaders in the field of copper leaching solvent extraction and electrowinning. He is the leader of a team of process engineers who have made significant contribution to the advancement of various aspects of minerals processing and hydrometallurgy.
A fellow of the AusIMM with Chartered Practicing Status, member of SAIMM and of the Coal Preparation Society, Graeme has published over 40 technical papers in coal preparation and minerals processing. SKM provides services for the study, development, execution and commissioning of mineral processing plants and mining projects. Clients have included all major Australian mining companies and a wide cross section of the industry, in a variety of commodities.

  • BE(Chem) Queensland 1974 PREng (Chem) Queensland
  • MMICA, FAusIMM (CP), MSAIMM, MCoalPrepSoc
  • Mineral Processing
  • Feasibility Studies
    Project Execution & Management
    Solvent Extraction
    Heap Leaching
Areas of Practice:
  • Coal washing
  • Flowsheet development and plant design
  • Heap Leach
Commodity Experience:
  • Bauxite and Alumina
  • Base Metals
  • Diamonds
  • Gold, Silver
  • Uranium
Regional Experience:
  • Australia – Queensland
  • Australia – Western Australia
  • Middle East (inc. Turkey, Cyprus)
  • S E Asia (Malaysia, Thailand, Vietnam, Myanmar)
Photo of Mr Kevin Morgan Expert Witness
Mr Kevin Morgan Expert Witness

Forty eight years as a geologist with governments, companies and as a consultant have provided Kevin with extensive experience in hydrogeology, climate analysis, regional geology, geochemical exploration, coal exploration and environmental geology. He commenced consulting in 1968 and in 1972 formed his independent practice which is particularly known for expertise in hydrogeology, public company reporting, valuations, waste water disposal and environmental hydrogeology.
Projects have been taken throughout the world with particular reference to Africa, South East Asia, Iran, Papua New Guinea and Russian Far East.
Kevin’s main areas of practice are in regional and arid zone hydrogeology, groundwater exploration and assessment, mine dewatering, tailings dam hydrogeology, waste water disposal, environmental hydrogeology, groundwater monitoring and statutory reporting, hydrochemistry, climate analyses and storm runoff estimation, small dam hydrogeology, and exploration property valuation.

  • BSc WA 1956
  • Hydrogeology and Environment
  • Regional Exploration
    Exploration Property Valuations
Areas of Practice:
  • Exploration – Property Appraisal
  • Independent expert valuations
Commodity Experience:
  • Gold, Silver
  • Nickel and Cobalt
  • Uranium
Regional Experience:
  • Australia – All States
  • Canada
  • Central Asia
  • East Africa
  • Indonesia
  • Middle East (inc. Turkey, Cyprus)
  • Philippines
  • PNG
  • Russia, CIS
  • S E Asia (Malaysia, Thailand, Vietnam, Myanmar)


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