해양환경안전학회(The Korean Society Of Marine Environment & Safety)
키워드
망간단괴해저열수광상망간각심해저 광업기대자급률광물수급전략manganese nodulehydrothermal polymetallic depositcobalt-rich ferromanganese crustthe deep sea miningexpected the degree of self-sufficiencystrategy of suppling mine resource