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关于沟弧盆构造体系下的海底热液活动，因涉及的问题繁多，一直是海洋地质学界十分注目的重要研究课题。相比之下，西太平洋沟弧盆体系的马里亚纳海槽和西南太平洋的汤加－斐济海盆中的劳海盆都有ＤＳＤＰ／ＯＤＰ的支撑，有关海底热液活动及其构造属性、地壳类型、形成时代等已有了十分明确的结论，唯冲绳海槽至今尚未有此机会。为了迎接１９９８年大洋钻探船来西太平洋海域，特建议在冲绳海槽设站钻探，可在地理座标２７°１５′～２７°３５′Ｎ，１２６°５６′～１２７°１０′Ｅ的范围、水深１３００～１５５０ｍ水域内海底热液活动活跃区选站，连续钻探４～５孔，其目的拟解决以下４个问题：１．冲绳海槽现代海底热液活动通道在岩层中的最大透过深度及其岩石学性质；２．冲绳海槽的热液类型和成岩成矿作用；３．热液活动与地壳性质；４．热液活动在沟弧盆体系演化中的意义。
With regard to the seabed hydrothermal activities under the Trench-Arc basin structure system, due to the numerous problems involved, it has been a very important research topic in marine geology. In contrast, both the Mariana Trough in the Western Pacific Arcanization Basin system and the Tonga-Fiji basin in the Southwest Pacific have DSDP / ODP support for hydrothermal activity and tectonic attributes of the seabed, crust types, The formation of the era has been very clear conclusion, but the Okinawa Trough has yet to have this opportunity. In order to welcome the 1998 ocean drilling ship to the western Pacific Ocean, it is proposed to set up a drilling station in the Okinawa Trough to conduct drilling at the geographic coordinates of 27 ° 15’-27 ° 35’N and 126 ° 56’-127 ° 10’E , Depth of 1300 ~ 1550m waters within the seabed hydrothermal activity active area stations, continuous drilling 4 to 5 holes, the purpose of the following four questions to be solved: 1. 2. The maximum depth of penetration and its petrological properties of modern seafloor hydrothermal activity channel in the Okinawa Trough; 2. Okinawa Trough thermofluidic and diagenetic mineralization; 3. Hydrothermal activity and crustal properties; 4. Significance of Hydrothermal Activity in the Evolution of Trench - Arc Basins System.