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Buxton Innicon is able to provide all round metalliferous open pit and underground mining operational and technical advice for small to mid-sized companies covering a broad range of areas through its +27 years experienced Principal Mining Engineer – Sean Buxton.

Gold and base metal mining and processing

  • CIL process including crushing and grinding, leach, cyanide detox, intense cyanide leach, gold room, laboratory and sample preparation, ORICA CN Sparge process (solid)
  • International Cyanide Code Compliance (basic)
  • Base metal flotation, fine grind (basic)
  • Tails dam design, operation and remediation (solid)
  • Dump Heap Leach design, construct and operate full circuit including pads, drains, irrigation, ponds and leach circuit (solid)

Open Pit Mining

  • Single or multi-pit operations incl. Ernest Henry pit +500m deep
  • Mining fleet from 110 – 650 tonne (Hitachi EX1200 / Liebherr 996) excavators paired with 90 – 180 tonne (CAT 777 / 785 / 789) trucks; D6 to D11 track dozers; watercarts; graders; scrapers etc
  • Topsoil and grub and pre-strip cycles using dozer – scraper or digger – truck combinations
  • Mining quartz vein style shallow and steeply dipping orebodies
  • Geotechnical (Strong)
  • Manage and monitor various types of large and small potential wall failures – pre and post failure
  • Manage and design remediation methods for wall slips
  • Performance optimisation of mining fleet and process
  • Full site design layout including waste dumps, ROM, laydown areas, amenities and closure bunds, diversion drains, sedimentation ponds, explosives storage etc
  • Pit wall groundwater depressurisation programmes
  • Multi-stage pumping and water transfer between pits and ponds

Underground Mining

  • Multiple mining methods including Longhole Open Stoping (LHOS), Benching, AVOCA, Room and Pillar, Sub Level Open Stoping (SLOS), Hand-held rising and stoping, Underhand and Mechanised cut and fill (UCAF / MECAF)
  • Narrow vein and porphyry
  • Shallow and steeply dipping orebodies
  • Multiple void backfill methods including paste, sand, sand / cement, CRF, crushed aggregate, cemented aggregate using bogger + mix and pipeline delivery from surface
  • Geotechnical (Solid)

Scoping, Pre-feasibility and Feasibility Studies

  • Kulthor – underground mid sized longhole open stope method, copper, ex Osborne Mines, Ivanhoe – Scoping through to Feasibility Study Management and Final Report
  • Wyoming and Caloma Resources – underground small to mid sized longhole open stope method, gold, Alkane Resources’ Tomingley Gold Mine – Scoping through to Feasibility Study Management and Final Report Review
  • Caloma – open pit cutback using small to mid-sized mining fleet, multi-switchback, gold, Alkane Resources’ Tomingley Gold Mine – Scoping Study
  • In-pit Tailings Disposal Study from Scoping through to Feasibility and submission for assessment as a Project Approval Modification NSW

Mine Startups

  • Started mines in NT, NSW and SA
  • Managed all phases of Tomingley Gold Project from Feasibility Study through to steady state operations
  • Pre-operations readiness planning
  • Business Model “Pillars of success” policy development including Core Values / Expected behaviours, safety and training, quality and people
  • Recruitment + HR process and site team setup including Advertisements, Salary setting, Position Descriptions, Owner-operator + contractor models, Integrated business unit strategy,
  • Performance Management processes
  • Site security and shipments (including gold)
  • Roster risk assessment and selection
  • Government regulators, community and stakeholder engagement

Mine Safety Management System Setup

  • Mine Safety Management Plans and associated procedures
  • Bowtie Risk Assessment
  • Principal Control Plans / Principal Hazard Management Plans
  • Human Psychology of Risk including concepts of Workspace, Headspace and Groupspace
  • Mine induction development
  • TARPs
  • Incident investigation including TAPROOT / ICAM

Contractor Selection and Management

  • Tender preparation and award
  • Project Management

Mine Planning and Design

  • Budget and forecasting processes
  • Short, medium long term planning processes including integration and practical use of MineSched, EPS software etc
  • Geotechnical support process for operations
  • Optimisation of existing mine design and processes, mining fleet, shift handover, hotseating, roster changeover
  • Cutoff grades studies


  • Good understanding of NSW / SA government agencies and processes
  • Site general regulatory requirements including NSW Resources Regulator, Dept of Planning, Dept of Water, EPA etc
  • Mine Project Development assessment and approval processes
  • Project Approval modification (MOD) preparation and amendments processes
  • Mine Operations Plans (MOP / PEPR) preparation and amendments processes
  • NSW Mine Industry Safety Advisory Council (MISAC) meetings

Environment and Community

  • Community and stakeholder engagement
  • CCC meetings
  • VPA and grant assessments
  • Surface water management planning and processes
  • Water Management Plan including water balance, shedding,  purification, diversion, discharge criteria, analysis, storage options
  • Pollution remediation, incident investigation
  • Rehabilitation including sodic conditions on waste dumps
  • AusIMM presenter for Lachlan and Parkes Branches

Buxton Innicon can draw from +27 years operational and technical experience to help small to mid sized miners.