1. CODES and School of Physical Sciences, University of Tasmania, Hobart, Tasmania 7001, Australia.
2. Woods Hole Oceanographic Institution, Woods Hole, MA 02543, USA.
3. Department of Earth and Planetary Science, University of California, Berkeley, 307 McCone Hall, Berkeley, CA 94720–4767, USA.
4. Geology Department, University of Otago, Dunedin 9054, New Zealand.
5. National Institute of Water and Atmospheric Research, Auckland, New Zealand.
6. Department of Geology and Paleontology, National Museum of Nature and Science, 4-1-1 Amakubo, Tsukuba-shi, Ibaraki 305-0005, Japan.
7. GNS Science, P.O. Box 30368, Lower Hutt 5010, New Zealand.
8. Geology and Geophysics, University of Hawaii at Manoa, 1680 East-West Road, Honolulu, HI 96825, USA.
9. Massachusetts Institute of Technology/Woods Hole Oceanographic Institution Joint Program in Oceanography/Applied Ocean Science and Engineering, Woods Hole, MA 02543, USA.
10. School of Earth and Atmospheric Sciences, Georgia Institute of Technology, 311 Ferst Drive, Atlanta, GA 30332, USA.