1. Department of Earth and Planetary Science; The University of Tokyo; Tokyo Japan
2. Department of Earth and Planetary Sciences; Tokyo Institute of Technology; Tokyo Japan
3. Center for Advanced Marine Core Research; Kochi University; Kochi Japan
4. Graduate School of Integrated Arts and Sciences; Kochi University; Kochi Japan
5. Research Center for Knowledge Science in Cultural Heritage; Doshisha University; Kyoto Japan
6. Priority Organization for Innovation and Excellence; Kumamoto University; Kumamoto Japan
7. Geological Survey of Japan; National Institute of Advanced Industrial Science and Technology; Ibaraki Japan
8. Kochi Institute for Core Sample Research; Japan Agency for Marine-Earth Science and Technology (JAMSTEC); Kochi Japan