Organised by:

The AusIMM


Workshop Only Registration

W1: A Practical Guide to Designing and Running Effective Sampling Programs
W3: Grade Control in Underground Gold Operations
W4: Sampling Theory, Sampling Practices, and their Economic Impact

W1: A Practical Guide to Designing and Running Effective Sampling Programs

Friday 12 May 2017

This 1-day workshop has been developed for those involved in the sampling process; laboratory and metallurgy; project evaluation and resource and exploration geologists.

This workshop focuses on the importance of best sampling practices providing a hands on guide to designing and running effective sampling programs. All concepts are explained using case studies and practical examples.

By the end of the workshop you will:

  • Be able to critically assess and design sampling and sample preparation systems, from drilling through to process sampling
  • Understand the importance of good sampling practice
  • Understand the sources of sampling error and the cost of poor sampling
  • Understand and apply Gy's sampling theory to sample size selection and the design of sampling protocol

Workshop Presenter

John Graindorge, Principal Consultant
BSc (Hons) (Geology), Grad. Dip. Geostatistics, MAusIMM (CP)

John has more than 15 years' experience in exploration, mining and resource estimation. Prior to joining Snowden, John worked primarily as an underground mine geologist in Western Australia at the Plutonic Gold Mine (Barrick Australia Pacific Ltd).

Since joining Snowden in 2005, John has gained resource modelling and evaluation experience in open-pit and underground gold, iron ore (Pilbara and Mid-West Regions), copper (sulphide and oxide), nickel (sulphide and laterite), vanadium and Bushveld platinum deposits, and has specialist skills in QAQC and sampling. John also presents and develops public courses for Snowden on sampling, QAQC, grade control, reconciliation and resource estimation.

Cost: AusIMM member: $1060
Non member: $1249
Prices include GST
Time: 8.30am – 4.30 pm
Numbers: Minimum 5
Venue: Downer Training/ Induction Room
Level 1, 130 Stirling Street Perth
Includes: Includes lunch and refreshments

Participants will be required to bring a laptop for practical activities

W3: Grade Control in Underground Gold Operations

Friday 12 May 2017

This course will show you how to control ore in your underground gold mine from a perspective of correct sampling. It has been designed for anyone involved or about to become involved with the design, implementation and monitoring of an underground gold mine grade control system.

You will learn about:

  • What is grade control and introducing ore control
  • Importance and value of good sampling
  • Applied ‘Theory of Sampling’ and notion of representivity
  • How to sample correctly in an underground environment
  • Sampling QAQC
  • Designing and implementing ore control systems
  • Interfacing between geology and mine design

The presenter will make extensive use of case studies to illustrate the development of relevant topics. In particular, discussions on how to deal with coarse gold/high nugget ore bodies will be presented.

Workshop Presenter

Dr Simon Dominy FAusIMM(CP)

Simon has experience across mine production, consulting and academia. He has interests in economic geology; sampling; reserve estimation; grade control and reconciliation; mine design; and minerals engineering. Simon brings specific expertise in the geometallurgical field, and has developed and managed tactical and operational geometallurgical studies for projects globally. He is an Adjunct Professor at the WA School of Mines and a Visiting Associate Professor at the Camborne School of Mines, UK. Simon is currently Group Executive – Projects for Exchange Minerals Ltd and is involved in development projects and mine operations in Australia, Europe and South America.

Cost: AusIMM member: $990
Non member: $1210
Prices include GST
Time: 8.30am – 4.30 pm
Venue: Pan Pacific Perth
Includes: Includes course notes on USB and refreshments

W4: Sampling Theory, Sampling Practices, and their Economic Impact

Sunday 7 May & Monday 8 May 2017

The objective of the course is to reach a modern understanding of the Theory of Sampling of particulate materials and how it can be implemented in practice in a friendly way at mines and processing pants. At the end of the course, attendees will be better equipped to present the economic advantages of good sampling practices. Thus, the course is pre-requisite for bank investment: bankers must listen, and trust the Theory of Sampling.

Note: A scientific calculator and a laptop computer are recommended.

DAY 1: Heterogeneity, Correctness, Segregation, Fundamental Sampling Error, Nomograms

  • Geostatistical concepts, the variogram
  • Nugget Effect and its behavior and implications
  • Fundamental Sampling Error
  • Dangers: Notions of Correctness and Segregation
  • Implementation, applications, nomograms

DAY 2: Theory of Sampling as Applied to Process Control

  • The nine kinds of sampling Errors, how they occur, and how to minimize them; most people can list only two.
  • Sampling correctness, so you can reject sampling systems that will never perform a satisfactory job.
  • Become familiar with necessary tests to be performed at mines and plants to optimize all your sampling protocols.
  • To select appropriate data quality objectives for operating parameters, which are worth continuous monitoring, to minimize your operating cost.
  • To better appreciate the value of existing chronological data that allows one to control any process. These data are valuable for managers in identifying structural problems that lead to unnecessary financial losses.
  • Variography is the key to identifying the various sources of variability affecting routine chronological data. You will discover the power of chronostatistics.
  • Using existing data, variability from sampling and measurement must be clearly separated from process trends and cycles. Unless this is well done, continuous process improvement will remain elusive.
  • The valuable Visman-Ingamells experiment to assess the heterogeneity of trace constituents in environmental investigations, food and pharmaceutical industries.


Francis Pitard is President of Francis Pitard Sampling Consultants. His international consulting clients include companies involved in exploration and production of base and precious metals, coal, steel and aluminium, petroleum, chemical manufacturing, power generation, and environmental monitoring of soils, atmosphere and water. He worked for 6 years with the French Atomic Energy Commission and 15 years with AMAX Extractive R&D.

He has taught Sampling Theory, SPC, and TQM for the Continuing Education Office of the Colorado School of Mines, the Australian Mineral Foundation, the Mining Department of the University of Chile, and the University of Witwatersrand, and in-house for many companies in North and South America, Africa, Australia and SE Asia.

Dr. Dominique François-Bongarçon graduated as Civil Mining Engineer at the Nancy School of Mines, France, in 1974 and in 1978 he obtained a degree of Doctor in Mining Science and Techniques at the Paris Schools of Mines and Nancy University.

He was a researcher at the Geostatistics Centre of the Paris School of Mines in Fontainebleau for 10 years, and then worked for a variety of consulting firms and mining companies, including INCO Ltd.In Copper Cliff, Ontario, Canada, where he was in charge of Geostatistics.

He spent seven years working for Mineral Resource Development, Inc, San Mateo, California, USA as Vice President, and is currently president of consulting company, AGORATEK International, based in California.

Cost: AusIMM member: $1450
Non member: $1595
Prices include GST
Time: 8.00am – 5.00 pm
Venue: Pan Pacific Perth
Includes: Includes course notes on USB, lunch and refreshments