Design of grade control sampling programs for underground gold mines

S. C. Dominy, R. C.A. Minnitt

Research output: Chapter in Book/Report/Conference proceedingConference PaperResearchpeer-review

2 Citations (Scopus)


Grade control programs aim to deliver economic tonnes to the mill via accurate definition of ore and waste. The foundation of a successful program is high quality sampling supported by geology and a suitable data management and modelling system. Underground sampling methods include chip, channel and panel samples; grab/muck pile samples; and drill-based samples. Grade control strategy is related to mining method and orebody type. Sampling protocols must be designed to suit the style of mineralisation in question. Holistic studies focussing on ore mineralogy and gold particle deportment, size and distribution are required for sample collection and preparation protocol optimisation through 'Theory of Sampling' application. Where possible, such programs should be undertaken early in the life of a project. Appropriate assaying procedures are also required. Program implementation will require suitably skilled individuals to train and mentor staff, with ongoing Quality Assurance/Quality Control (QA/QC) monitoring and review will allow protocols and staff to be updated as required.

Original languageEnglish
Title of host publication8th International Mining Geology Conference 2011, Proceedings
Number of pages14
Publication statusPublished - 2011
Externally publishedYes
EventInternational Mining Geology Conference 2011 - Queenstown, New Zealand
Duration: 22 Aug 201124 Aug 2011


ConferenceInternational Mining Geology Conference 2011
Abbreviated titleIMGC 2011
Country/TerritoryNew Zealand
Internet address

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