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The Importance Of The Qualitative Description Of Borehole Core And The Requirements To Compile A Geological Competent Person’s Report

Principles and practices, causes and solutions, with case studies.
Risks – How to safeguard against non-transparent and unreliable reporting

Maximum 30 Delegates

Date: 2 - 3 July 2015
Venue: Glen Hove Conferencing

COST: R 2 505 + Vat Per Day, 
CPD Points Will Be Awarded


The qualitative and description of borehole core and the coal seams in the core lays the foundation to conduct geological, mining and economic feasibility studies in the most appropriate manner.  Companies generally have their own data format; structure and required standard of work performance, but the importance of the technical correctness of the descriptions are more than often underestimated.  Many Junior Coal Mining Companies are entering the coal industry in South Africa and in neighbouring. They often lack the necessary in-house skills and competencies and rely on consultants or contracted geological professionals, but is necessarily aware of the competency requirements.  Investors require more and more detail geological information lately and many CPR’s do not conform to the minimum requirements or guidelines as provided by SAMREC or JORC and an informed business decision is not possible.


  • To outline the fundamental differences between qualitative and quantitative core description and risks
  • Discuss the importance of a qualitative description of core material and borehole cuttings and risks
  • Present techniques to deal with displacement caused by faulting and to reconstruct the palaeo depositional environment and risk management
  • Compare the various Reporting Codes
  • Revisit the requirements to compile a CPR
  • Structure and content of a CPR
  • Present a checklist for internal/external reviews and audits of Geological CPR’s

Programme – Day 1

Session 1

  • Introduction
  • Requirements to produce a quality borehole report

Session 2

  • Techniques and requirements to develop a Geological Database

Session 3

  • Reconstruction of the palaeo depositional environment to characterise the coal deposit

Session 4

  • Structure and content of a Geological Report

Programme – Day 2

Session 1

  • Introduction
  • Differences between the various Reporting Codes

Session 2

  • Requirements to design and compile a CPR

Session 3

  • Requirements to design and compile a CPR - continue

Session 4

  • Checklist to evaluate, review or audit a Geological CPR

Who Should Attend

Geologists and Mineral Resource Managers, Valuators and auditors of Geological CPR’s, Junior Miners, Compilers of Geological CPR’s, Academia in Economic Geology


Gerhard Esterhuizen, Independent Geological Consultant.

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