Dr Tania R Marshall has been actively, and continuously, involved in the alluvial diamond exploration/mining industry since 1985. She has worked directly for both large and small companies in this field, as an Operator, and also as a Consultant (in Africa, South America, Australia and Asia). Dr Marshall has a PhD from the University of the Witwatersrand (1990). Since then she continues to Write and Lecture widely on the subject of alluvial diamond deposition, exploration, evaluation and valuation. In 1996 Dr Marshall founded Explorations Unlimited and has been involved in consulting and contracting to numerous South African and international exploration and mining companies. Dr Marshall is a Fellow of the Geological Society of South Africa (GSSA), a Member of the Southern African Institute of Mining & Metallurgy (SAIMM), a Life Member of the Geological Society of Africa (GSAf) and has been registered with the South African Council for Natural Scientific Professions (SACNASP) since 1996. In addition, she is an active Member of both the South African Mineral Resource Committee (SAMREC) and SAMVAL Committees, Chairs the SAMREC Diamond Working Group and is the Vice-Chairperson of the SAMCODE Standards Committee (SSC) as well as the Vice-President (Professional Affairs) of the GSSA.
