Define - Improving feed quality

Program 1: Define

Improving feed quality

New and novel testing, measurement and mapping technologies to characterise and quantify waste and ore for coarse separation attributes as inputs into Grade Engineering® assessment and mine planning.

program 1 define coloured blocksExample of definition of specific domains in a large open pit operation that drive maximum value in a Grade Engineering® assessment – in this case based on application of differential blasting for conditioning grade by size (yellow blocks).Program 1 included predictive performance attributes across the five main rock interface separation levers which drive Grade Engineering® response.

These attributes need to be embedded into spatial models and used to optimise mine planning and scheduling for maximum value.

Coarse separation involves concentration of valuable phases and removal of barren gangue phases in the ‘dig and deliver’ mining interface prior to costly and energy intensive processing.

In current practice attributes required to define and value coarse separation were typically not collected on operations.

Program 1 aimed to provide testing and modelling protocols to populate resource block models with separation attributes that could be used in mine planning and scheduling.

Project snapshot
  P1-001: Gamma Activation Analysis for geo-sensing - Phase 1

icon pdf

  P1-009: Gamma Activation Analysis for geo-sensing - Phase 2

icon pdf

  P1-002: PGNAA elemental logging for Instrumenting the Bench

icon pdf

  P1-003: Magnetic resonance of covellite for geo-sensing

icon pdf 

  P1-004: GE.View an online tool for assessing Grade Engineering opportunities

icon pdf

  P1-005: Upconversion fluorescence of minerals for geo-sensing

icon pdf

  P1-006: Geological controls on grade by size deportment

icon pdf

  P1-006: Geological controls on grade by size deportment - Close out     icon pdf
  P1-007: Surface techniques for geo-sensing

  icon pdf

  P1-011: Resource scale heterogeneity evaluation 

icon pdf

  P1-013: MR Bench Analysis Stage 1   icon pdf
  P1-014: Real-time Fluorine Mineral Identification using Novel Fluorescence Technology     icon pdf
  P1-014: Real-time Fluorine Mineral Identification using Novel Fluorescence Technology - Close out     icon pdf
  P1-017: Statistical Interpretation of Grade Distribution - Close out     icon pdf
  P1-019: MR Bench Analysis Stage 2b - Close out     icon pdf


Research milestones

program 1 contoured blast holes diagramPlan view of contoured blast hole Cu grades for a set of mining benches assigned to mill based on average cut-off grades. Ideally zones shown in green are below mill cut-off grade and represent coarse separation opportunity.

Program 1 aimed to develop a new approach to resource definition to support implementation of Grade Engineering at production scale based around three major challenges:

  1. A new approach to define and predict spatial domains of heterogeneity in resource definition that can be exploited by Grade Engineering.
  2. To develop response curves to relate domain heterogeneity to sensor responses and coarse separation opportunities.
  3. To provide on-line sensor-based telemetry to inform Grade Engineering decisions and operation.

The outcomes included methods to identify and rank productivity improvements between mining projects and ore domains. Predictive indexes on-line measurement options for coarse separation were developed, to allow optimisation and delivery of increased value via Programs 1, 2 and 3.

program 1 comparative ranking graphComparative ranking of average preferential grade by size Response Rankings for selected deposits. Whiskers show 25th and 75th percentiles

Program Coodinator

Program 1: Define
Greg Wilkie

Greg Wilkie CRC ORE 2017


Aus Gov CRC logo reverse 01


Get in Touch

ADDRESS:PO Box 403, Kenmore Queensland 4069


Our location