1. Department of Earth Sciences, Western University, Biological & Geological Sciences Building, Room 1026, 1151 Richmond Street N., London, Ontario, Canada N6A 5B7, hghofra@uwo.ca, gatkins6@uwo.ca, kassatou@uwo.ca
2. Alberta Geological Survey, Alberta Energy Regulator, Suite 205, 4999 ‐ 98 Avenue, Edmonton, Alberta, Canada T6B 2X3, ryan.schultz@aer.ca