Possible extinct ridge between the Conrad Rise and the Del Cano Rise in the Southern Indian Ocean
Yoshifumi Nogi, NIPR National Institute of Polar Research, Tokyo, Japan, Taichi Sato, AIST, Ibaraki, Japan, Masakazu Fujii, Atmosphere and Ocean Research Institute University of Tokyo, Tokyo, Japan and Hiroshi Sato, Senshu Univ, Kawasaki, Japan
