1. Department of Earth and Environmental Sciences Lehigh University Bethlehem PA USA
2. GNS Science National Isotope Centre Lower Hutt New Zealand
3. Graduate School of Arts and Sciences The University of Tokyo Tokyo Japan
4. Department of Earth and Environmental Sciences University of Minnesota Minneapolis MN USA
5. Research Geologist (Contractor) New Plymouth New Zealand
6. Scripps Oceanographic Institute University of California, San Diego San Diego CA USA