1. iCRAG (Irish Centre for Research in Applied Geosciences) and School of Earth Sciences, University College Dublin, Belfield, Dublin 4, Ireland;
2. CSIRO Earth Science and Resource Engineering, 26 Dick Perry Avenue, Kensington, WA 6151, Australia;
3. Geological Survey Division, Department of Mines and Petroleum, East Perth, WA 6004, Australia;
4. Black Raven Mining, PO Box 902, West Perth, WA 6872, Australia;
5. Geological Survey of New South Wales, NSW Department of Industry, 516 High St, Maitland, NSW 2320, Australia