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本文基于流体包裹体和石英18O资料 ,提出呷村高18O成矿流体的成因有两种可能性 :一种 ,指示岩浆流体的参与 ,这已被成矿流体的高盐 [w (NaCleq) =5.7%～ 2 1.3% ]和极度富气所证实。另一种 ,指示海水与高18O火山岩或沉积岩发生过高温、低m水/m岩石 反应。现代和古代VMS矿床热液对流深度、水 -岩反应理论计算结果及遍布矿区成矿前的低温 ( <150℃ )和高m水/m岩石 反应表明后一种可能性的存在。高18O成矿流体来源的确对完善VMS矿床成因模式具有重要意义。
Based on the data of fluid inclusions and quartz rocks, it is suggested that there are two possibilities for the formation of igucao-18O metallogenic fluids: one, indicating the involvement of magmatic fluids, which has been attributed to NaCleq = 5.7% ~ 2 1.3%] and extremely rich gas confirmed. On the other hand, it indicates that the seawater and the high 18O volcanic rocks or sedimentary rocks have experienced over-temperature and low-m water / m rock reactions. The hydrothermal convection depth, the theoretical calculations of water-rock reactions and the low temperature (<150 ℃) and high m water / m rock reactions before and after mineralization in the modern and ancient VMS deposits suggest the existence of the latter possibility. It is indeed of great significance to improve the genesis pattern of VMS deposits for the high 18O ore-forming fluids.