*Daniel Coulthard¹, Georg F Zellmer¹, Sebastien Jego², Akihiko Tomiya³ (1.Volcanic Risk Solutions, Massey University, Palmerston North, New Zealand, 2.Institut des Sciences de la Terre d'Orleans, Centre National de la Recherche Scientifique, Universite d'Orleans, Orleans, France, 3.Geological Survey of Japan, Advanced Institute of Science and Technology, Tsukuba, Japan)

*Raimundo Brahm¹, Georg F Zellmer¹, Takeshi Kuritani², Naoya Sakamoto³, Daniel Coulthard¹, Mitsuhiro Nakagawa², Eiichi Sato⁴, Hisayoshi Yurimoto³ (1.VRS, Massey Univ., 2.Grad. School of Sc., Hokkaido Univ., 3.IIL, CRI, Hokkaido Univ., 4.Hokkaido Univ. of Educ.)

*Charline Lormand¹, Georg F Zellmer¹, Naoya Sakamoto², Geoff Kilgour³, Teresa Ubide⁴, Hisayoshi Yurimoto², Alan Palmer⁵, Karoly Nemeth¹, Yoshiyuki Iizuka⁶, Anja Moebis⁵ (1.School of Agriculture and Environment, Volcanic Risk Solutions, Massey University, PO Box 11222, Palmerston North 4442, New Zealand, 2.Isotope Imaging Laboratory, Natural History Sciences, Hokkaido University, Sapporo 060-0810, Japan, 3.GNS Science, Wairakei Research Centre, Private Bag 2000, Taupo 3352, New Zealand, 4.School of Earth and Environmental Sciences, The University of Queensland, Brisbane, QLD 4072, Australia , 5.School of Agriculture and Environment, Department of Soil Science, Massey University, PO Box 11222, Palmerston North 4442, New Zealand , 6.Institute of Earth Sciences, Academia Sinica, 128 Academia Road Sec. 2, Nankang, Taipei 11529, Taiwan)

*Georg F Zellmer¹, Naoya Sakamoto², Minami Kuroda³, Isao Sakaguchi⁴, Hisayoshi Yurimoto^2,5 (1.Massey University, 2.Hokkaido University, 3.AIST, 4.National Institute of Material Sciences, 5.Japan Aerospace Exploration Agency)