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冲绳海槽是正在发生着海底热水喷流 (黑烟囱式 )和现代成矿过程的弧后扩张盆地 .JADE热水区热液补给带水 岩反应产物中的流体包裹体研究表明 ,海底深部热流体系极度富气 ,并存在两类相对独立、密切共生的CO2 烃类流体和盐水流体 .CO2 烃类流体包裹体成分总体上与天然气田的流体包裹体成分相当 .盐水流体包裹体以H2 O为主 ,CO2 和CH4呈过饱和状态 .盐水流体在海底呈黑烟囱流体喷射 ,CO2 流体在海底呈CO2 气泡排泄 ,并形成CO2 水合物 ,烃类气体或流体可能被局部封存 .CO2 CH4 H2 S气体或流体的大量存储及其与盐水流体的反应效应导致金属硫化物工业堆积 .
The Okinawa Trough is an arc-back dilation basin undergoing a seafloor hot-water jet (black chimney) and a modern mineralization process. Fluid inclusions in the water-rock reaction products of the JADE hot water recharge zone show that deep sea There are two types of CO2 fluids and brine fluids that are relatively independent and closely intergrown, and the compositions of CO2 hydrocarbon fluids are generally equivalent to the fluid inclusions in gas fields. The brine fluid inclusions are characterized by H2 O , CO2 and CH4 were supersaturated, and the brine fluid was jetted by the black chimney at the seabed, the CO2 fluid was expelled at the sea bottom as CO2 bubbles and formed a CO2 hydrate, and the hydrocarbon gas or fluid might be partially sealed off.CO2 CH4 H2 S Mass storage of gases or fluids and their reaction with brine fluids lead to the industrial accumulation of metal sulphides.