Columbia University Department of Earth and Environmental Sciences, Lamont Doherty Earth Observatory, 61 Route 9W, Palisades, NY 10964, United States ; Lamont Doherty Earth Observatory, Geochemistry Division, 61 Route 9W, Palisades, NY 10964, United States
Barnard College Department of Environmental Sciences, 3009 Broadway, 404 Altshul Hall, New York, NY 10027, United States
Lamont Doherty Earth Observatory, Geochemistry Division, 61 Route 9W, Palisades, NY 10964, United States
Lamont Doherty Earth Observatory, Geochemistry Division, 61 Route 9W, Palisades, NY 10964, United States
Columbia University Department of Earth and Environmental Sciences, Lamont Doherty Earth Observatory, 61 Route 9W, Palisades, NY 10964, United States ; Lamont Doherty Earth Observatory, Geochemistry Division, 61 Route 9W, Palisades, NY 10964, United States
Lamont Doherty Earth Observatory, Geochemistry Division, 61 Route 9W, Palisades, NY 10964, United States
Barnard College Department of Environmental Sciences, 3009 Broadway, 404 Altshul Hall, New York, NY 10027, United States
Barnard College Department of Environmental Sciences, 3009 Broadway, 404 Altshul Hall, New York, NY 10027, United States