Deirdre Mallyon, Dartmouth, Nova Scotia, Canada, Fiona Henderson, University of Queensland, School of Earth and Environmental Science, Brisbane, Australia, Colleen Gosse, Eosense Inc., Dartmouth, NS, Canada, David A Risk, St. Francis Xavier University, Department of Earth Sciences, Antigonish, NS, Canada and Nick Nickerson, Forerunner Research Inc., Dartmouth, Canada