Toshiya Fujiwara, JAMSTEC Japan Agency for Marine-Earth Science and Technology, Research Institute for Marine Geodynamics, Kanagawa, Japan, Natsue Abe, JAMSTEC Japan Agency for Marine-Earth Science and Technology, Mantle Drilling Promotion Office MarE3, Kanagawa, Japan, Naomi Harada, Japan Agency for Marine-Earth Science & Technology, Yokosuka, Japan and Mirai MR16-09 Leg 2 Shipboard Science Party