David Cohen has 15 years experience in pure and applied exploration geochemistry research based in Australia, Asia and North America.  He is President-elect of the (International) Association of Applied Geochemists.  Current research projects include sampling and analytical methods for exploration and environmental geochemistry, environmental geochemical baseline surveys and multivariate data mining.  He is a senior lecturer and researcher at UNSW in environmental and exploration geochemistry, economic geology, geological data processing and statistics methods, and supervises a number of postgraduate research students in exploration geochemistry. He has been involved in major environmental consultancies including the contaminant assessment of the Olympic Village Site (Newington), the Orica site at Botany, Bicentennial Ponds in Rockdale and Regional Geochemical Surveys of the NE region of NSW and Cyprus.  He has been a technical consultant to a number of industrial companies and government departments...