School of Earth and Ocean Sciences, University of Victoria, P.O. Box 3055, Victoria, BC V8W 3P6, Canada
Geological Survey of Canada, Natural Resources Canada, P.O. BOX 6000, Sidney, BC V8L 4B2, Canada
Department of Oceanography, Dalhousie University, Edzell Castle Circle, Halifax, NS B3H 4J1, Canada
Department of Oceanography, Dalhousie University, Edzell Castle Circle, Halifax, NS B3H 4J1, Canada
Geological Survey of Canada, Natural Resources Canada, P.O. BOX 6000, Sidney, BC V8L 4B2, Canada
School of Earth and Ocean Sciences, University of Victoria, P.O. Box 3055, Victoria, BC V8W 3P6, Canada ; Geological Survey of Canada, Natural Resources Canada, P.O. BOX 6000, Sidney, BC V8L 4B2, Canada