1. CSIRO Mineral Resources, ARRC, PO Box 1130, Bentley, WA 6102, Australia
2. Victoria University of Wellington, PO Box 600, Wellington, New Zealand
3. School of Earth and Ocean Sciences, Cardiff University, Cardiff CF10 3AT, UK
4. Barrick (Australia Pacific) Limited, 6/621 Coronation Drive, Toowong, Qld 4069, Australia
5. School of Environment, The University of Auckland, Private Bag 92019, Auckland, New Zealand