1. School of Earth, Environmental and Biological Sciences, Queensland University of Technology, GPO Box 2434, Brisbane, QLD 4001, Australia
2. Central Analytical Facility, Institute for Future Environments, Queensland University of Technology, GPO Box 2434, Brisbane, QLD 4001, Australia
3. Geological Survey of Queensland, PO Box 15261, City East, QLD 4002, Australia
4. Geoscience Australia, GPO Box 378, Canberra, ACT 2601, Australia
5. Commonwealth Scientific and Industrial Research Organisation, Australian Resources Research Centre, 26 Dick Perry Avenue Kensington, WA 6151, Australia