Detailed Gas Chimney Structures in Joetsu Area at Southeastern Margin of Japan Sea, Revealed by High-Resolution 3D Seismic Survey (HR3D)

Shiro Ohkawa, Meiji University, Gas Hydrate Research Laboratory, Tokyo, Japan, Akihiro Hiruta, Meiji University, Kawasaki, Japan, Yutaka Yanagimoto, Meiji University, Gas Hydrate Laboratory, Tokyo, Japan, Ryo Matsumoto, Meiji University, Gas Hydrate Laboratory, Kawasaki, Japan and Eiichi Asakawa, JGI, Inc., Tokyo, Japan