Methane hydrate morphology of natural hydrate-bearing sediment from Nankai trough, Japan

Yusuke Jin1, Yoshihiro Konno2, Jun Yoneda3, Masato Kida4 and Jiro Nagao3, (1)National Institute of Advanced Industrial Science and Technology (AIST), Sapporo, Japan, (2)AIST - National Institute of Advanced Industrial Science and Technology, Tsukuba, Japan, (3)AIST - National Institute of Advanced Industrial Science and Technology, Sapporo, Japan, (4)National Institute of Advanced Industrial Science and Technology (AIST), Tsukuba, Japan