1. Chan, K. New gold discoveries decline by 45%http://intierrarmg.com/Libraries/Brochures_and_Flyers/New_gold_discoveries_decline_45_-_25_March_2013.sflb.ashx (2013).
2. Cameron, E. M. et al. Finding deeply buried deposits using geochemistry. Geochem: Explor. Env. Anal. 4, 7–32 (2003).
3. Aspandiar, M. F. et al. Mechanisms of metal transfer through transported overburden within the Australian regolith. Explore -News. Assoc. App. Geochem. 125, 9–12 (2004).
4. Dunn, C. E. Biogeochemistry in Mineral Exploration Vol. 9, ed. Hale M. 1–450Elsevier (2007).
5. Erdman, J. A. & Olson, J. C. The use of plants in prospecting for gold: a brief overview with a selected bibliography and topic index. J. Geochem. Explor. 24, 281–309 (1985).