1. Department of Earth and Planetary Sciences Rutgers University Piscataway NJ USA
2. Department of Earth and Planetary Sciences University of California, Berkeley Berkeley CA USA
3. School of Earth and Environmental Sciences Queens College, City University of New York Queens NY USA
4. Earth and Environmental Sciences The Graduate Center, City University of New York New York NY USA
5. Department of Geology and Geophysics Louisiana State University Baton Rouge LA USA