1. School of Earth and Environmental Sciences, Cardiff University, Cardiff, Wales CF10 3AT, United Kingdom.
2. Department of Earth Sciences, Herzberg Laboratories, Carleton University, Ottawa, ON K1S 5B6, Canada.
3. Camborne School of Mines, University of Exeter, Penryn Campus, Penryn, England TR10 9FE, United Kingdom.
4. Sciences de la Terre, Université du Québec à Chicoutimi, Chicoutimi, QC G7H 2B1, Canada.
5. Geological Survey of Norway, P.O. Box 6315, Torgarden, Trondheim, 7491, Norway.
6. Northern Shield Resources, 500-55 Metcalfe Street, Ottawa, ON K1P 6L5, Canada.