1. Department of Geological Sciences Stanford University Stanford California USA
2. Department of Earth and Environmental Sciences Syracuse University Syracuse New York USA
3. Department of Geology and Geophysics Woods Hole Oceanographic Institution Woods Hole Massachusetts USA
4. Department of Earth, Atmospheric, and Planetary Sciences Massachusetts Institute of Technology Cambridge Massachusetts USA
5. Department of Geosciences and Earth and Environmental Systems Institute Penn State University University Park Pennsylvania USA
6. Ericsson Santa Clara California USA
7. Department of Earth Sciences Utrecht University Utrecht The Netherlands