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测定了冲绳海槽中部Jade热液活动区中18个热液沉积物样品的硫同位素组式，其中10个硫化物样品的δ34S值为5．2×10－3～7．2×10－3，7个硫酸盐样品的34S值为16．3×10-3～22．3×10-3，1个自然硫样品的δ34S值为8．2×10-3热液沉积物的硫主要来自中、酸性火山岩和海水，并且在流体与沉积物相互作用过程中海底沉积物也可能为热液沉积物的形成提供部分的硫．导致本区热液沉积物中硫化物与其他热液活动区的硫同位素组成不同的原因，主要是各热液活动区的硫源以及有关岩浆活动和构造演变的不同.海底热液体系中硫的演化是一个复杂的过程，涉及被加热海水的上升、流体与火山岩的相互作用、海水硫酸盐和中、酸性火山岩中流的混合作用以及流体与沉积物相互作周等一系列海底热液活动，其中海水和中、酸性火山岩的相互作用是本区硫演化的一个重要机制．
The isotopic composition of 18 hydrothermal sedimentary samples from the Jade hydrothermal field in the central Okinawa Trough was measured. The δ34S value of 10 sulfide samples was 5.2 × 10-3 ~ 7.2 × 10-3 , The 34S value of seven sulfate samples is 16.3 × 10-3 ~ 22.3 × 10-3, and the δ34S value of one natural sulfur sample is 8.2 × 10-3. The sulfur of the hydrothermal sediment mainly comes from Medium, acidic volcanic rocks, and seawater, and seabed sediments may also provide partial sulfur for the formation of hydrothermal deposits during the fluid-sediment interaction. The reason for the difference in sulfur isotopic compositions of sulfides from other hydrothermal zones in the hydrothermal sediments of this area is mainly the sulfur sources in the hydrothermal zones and the magmatic activity and tectonic evolution. Is a complex process involving a series of seafloor hydrothermal activities such as the rise of heated seawater, the interaction of fluid with volcanic rocks, the mixing of seawater sulphate and the flow of medium and acidic volcanic rocks, and the interaction between fluids and sediments, The interaction between seawater and intermediate and acidic volcanic rocks is an important mechanism of sulfur evolution in this area.