University of Alberta, Earth and Atmospheric Sciences, Edmonton, AB T6G 2E3, Canada
Instituto Potosino de Investigación Cientifica y Tecnológica (IPICyT), Applied Geosciences, San Luis Potosí, SLP CP 78216, Mexico ; University of Alberta, Earth and Atmospheric Sciences, Edmonton, AB T6G 2E3, Canada
University of Alberta, Department of Biological Sciences, Edmonton, AB T6G 2E9, Canada
Simon Fraser University, Department of Earth Sciences, Burnaby, BC V5A 1S6, Canada