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, National Institute of Polar Research, Tokyo, Japan and Hiroshi Sato, Senshu Univ, Kawasaki, Japan
