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慢速洋中脊离轴区高温热液对流系统主要建立在超基性岩基础上,其成矿流体为碱性还原性流体(Bach et al.,2010),流体组分很大程度上取决于高温海水与超基性岩的水-岩反应,该类热液区上的块状硫化物因此表现出相对特殊的矿物组成和化学成分(Klevenz et al.,2011)。我们对Rainbow区(Lein et al.,2003)、Logatchev(Gablina et al.,2000)、Ashadze(Mozgova et al.,2008)等离轴区热液喷口流体
The high-temperature hydrothermal convection system in the off-axis zone of the slow mid-ocean ridge is mainly based on ultrabasic rocks, and the ore-forming fluid is a basic reducing fluid (Bach et al., 2010). The fluid composition is largely dependent on In water-rock reactions between high-temperature seawater and ultrabasic rocks, massive sulphides on this hydrothermal zone thus exhibit relatively specific mineralogical compositions and chemical compositions (Klevenz et al., 2011). We analyzed hydrothermal fluid exits in the Rainbow zone (Lein et al., 2003), Logatchev (Gablina et al., 2000), Ashadze (Mozgova et al., 2008)