Val Finlayson¹, Richard J Walker¹, Mitchell Bruce Haller², James M Day³, Brian O'Driscoll⁴, Asko Kontinen⁵ and Eero Hanski⁶, (1)University of Maryland College Park, Department of Geology, College Park, MD, United States, (2)Corning Inc., Corning, NY, United States, (3)Univ. California, San Diego, GRD, La Jolla, CA, United States, (4)University of Manchester, School of Earth and Environmental Sciences, Manchester, United Kingdom, (5)Geological Survey of Finland, Espoo, Finland, (6)University of Oulu, Oulu Mining School, Oulu, Finland