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70年代后半期,利用潜水器在东太平洋海隆潜航,发现了从“烟囱”极佳喷出富含金属的热液姿态及其周围的特殊生物群,已成为发现海底新矿物资源的重大话题;最近,不仅在中央海岭系,且相继在冲绳海槽、裴济海盆、马利亚纳海槽等西太平洋和日本近海的弧后海盆也发现了海底热液矿床。特别是在具有陆壳性质的冲绳海槽中的伊是名海穴发现了热液矿床,是至今地质年代里唯一所见的黑矿矿床,对现代地质学具重要意义,在日本200海里经
In the second half of the 1970s, the use of submersibles to snorkel in the East Pacific Rift represented a great topic of discovering new mineral resources on the seabed. The discovery of the excellent expelling of metal-rich hydrothermal gestures from and around the “chimney” and its surrounding special biota, Recently, the seabed hydrothermal deposits have also been discovered not only in the Central Ridge System, but also in the back-arc basin off the western Pacific Ocean and the Japan Sea, such as the Okinawa Trough, the Bajiji Basin, the Maliana Trough and so on. Especially in the Okinawa Trough with continental crust, the discovery of hydrothermal deposits in the sea of Minamata in Iraq is the only black ore deposit seen so far in the geological era, which is of great significance to modern geology. In Japan, 200 nautical miles