Macnae, J., School of Applied Sciences, RMIT University, Melbourne, VIC, Australia

Coulter, D.W., Overhill Imaging and Cartography LLC, Golden, CO, USA; Hauff, P.L., Spectral International, Inc, Arvada, CO, USA; Kerby, W.L....

Allard, M., Xstrata Zinc Canada, Laval, QC, Canada

Dransfield, M., BHP Billiton, Melbourne, VIC, Australia