Department of Earth, Atmospheric and Planetary Sciences, Massachusetts Institute of Technology, 54-1421 77 Massachusetts Ave., Cambridge, MA 02139 United States
Lamont--Doherty Earth Observatory and Department of Earth and Environmental Sciences, Columbia University, Route 9W, Palisades, NY 10964
Lamont--Doherty Earth Observatory and Department of Earth and Environmental Sciences, Columbia University, Route 9W, Palisades, NY 10964