1. Department of Earth and Planetary Sciences Yale University New Haven CT USA
2. Department of Earth and Planetary Sciences Harvard University Cambridge MA USA
3. Now at University of Waikato (Tauranga) Tauranga New Zealand
4. Now at Toi‐Ohomai Institute of Technology Tauranga New Zealand
5. Now at Lawrence Livermore National Laboratory Livermore CA USA
6. Now at Department of Earth and Planetary Science University of California, Berkeley Berkeley CA USA