Department of Earth, Atmospheric and Planetary Sciences, Massachusetts Institute of Technology, 77 Massachusetts Avenue, 54-610, Cambridge, MA 02139, United States
Department of Earth, Atmospheric and Planetary Sciences, Massachusetts Institute of Technology, 77 Massachusetts Avenue, 54-610, Cambridge, MA 02139, United States
Department of Geology and Geophysics, Woods Hole Oceanographic Institution, 266 Woods Hole Road, Clark South 172, MS#24, Woods Hole, MA 02543, United States
Geological Survey of Canada, 615 Booth Street, Room 204, Ottawa, ON K1A 0E9, Canada