Affiliation: | (1) Dokdo Research Center, East Sea Research Institute, Korea Ocean Research & Development Institute, Uljin, 767-813, Korea;(2) East Sea Research Institute, Korea Ocean Research & Development Institute, Uljin, 767-813, Korea;(3) Petroleum and Marine Resources Research Division, Korea Institute of Geoscience & Mineral Resources, Daejeon, 305-350, Korea;(4) Deep-sea & Marine Georesources Research Department, Korea Ocean Research & Development Institute, Ansan, 425-600, Korea |