Jan Dettmer¹, Hersh J Gilbert¹, Stephen Edward Grasby², Patrick Paitz³, Andreas Fichtner⁴, Gwenn E Flowers⁵ and Glyn Williams-Jones⁶, (1)University of Calgary, Department of Geoscience, Calgary, AB, Canada, (2)Natural Resources Canada - Canadian Research Service, Calgary, AB, Canada, (3)Zürich, NULL, Switzerland, (4)ETH Zurich, Department of Earth Sciences, Institute of Geophysics, Zurich, Switzerland, (5)Simon Fraser University, Department of Earth Sciences, Burnaby, BC, Canada, (6)Simon Fraser University, Burnaby, BC, Canada