1. Department of GeographyUniversity of Liège Liège Belgium
2. Geological Survey of BelgiumRoyal Belgian Institute of Natural Sciences Brussels Belgium
3. Department of GeologyUniversity of Liège Liège Belgium
4. Mount Fuji Research Institute, Yamanashi Prefectural Government Yamanashi Japan
5. UMR5805 EPOC, CNRS, University of Bordeaux Pessac France
6. Laboratory of OceanologyUniversity of Liege Liège Belgium
7. Department of GeologyGhent University Ghent Belgium
8. Geological Survey of JapanNational Institute of Advanced Industrial Science and Technology Tsukuba Japan
9. Atmosphere and Ocean Research InstituteUniversity of Tokyo Chiba Japan