Lesley Jeffrey

Lesley specialises in all aspects of geology related to coal; this ranges from exploration and greenfield studies to the initiation of mining. She has been involved in the design, implementation and management of coal exploration programmes, the geological assessment of coal deposits, computer modelling of tabular ore bodies, particularly coal, coal quality assessments and coal resource/reserve estimation. Lesley has carried out coal feasibility and due diligence studies and compiled Competent Person Reports; she has undertaken coal model and resource estimation audits, as well as geological assessments. She is a registered professional natural scientist with SACNASP and recognised as a Competent Person (coal). She is a Fellow of the GSSA and served on the editing committee for the second edition of SANS10320, the South African guide to the systematic evaluation of coal exploration results, coal resources and coal reserves.