新疆东戈壁钼矿流体包裹体温度、盐度特征

Characteristics of temperature and salinity of fluid inclusion in the East Gobi molybdenum deposit,Xinjiang

新疆东戈壁斑岩型钼矿床是在新疆境内发现的一个特大型钼矿床。控矿地质体为隐伏斑状花岗岩体,与矿化有关的各种脉体中流体包裹体均较发育。东戈壁斑岩型钼矿床流体包裹体总体具有低盐度特征,通过对流体包裹体温度、盐度关系及流体包裹体温度、盐度变化所反映出来的丰富成矿作用信息的研究,阐述了成矿物质富集的温度、盐度控制条件,揭示了主成矿元素辉钼矿晶出的温度区间与成矿流体高盐度的对应关系,对深入开展热液矿床的成矿学研究有一定的指导意义。

The East Gobi porphyry molybdenum deposit is the first super-large sized molybdenum deposit in Xinjiang. The ore - controlling geological body is the concealed porphyritic granite,and the fluid inclusions in various of veins related to the molybdenum mineralization are well developed. Generally the salinity of fluid inclusions in the East Gobi porphyry molybdenum deposit is low. Through the study of the relationship between temperature and salinity of fluid inclusions, and the rich complexed ore - forming infor- mation reflected by the spatial variation of temperature and salinity of fluid inclusions, the controlling conditions of temperature and sa-linity of ore - forming element enrichment were analyzed, the result indicated there is the corSresponding relationship between the temper-ature range of major ore - forming element of molybdenite crystaled and high salinity of ore - forming fluid. The study result will have a significance role for guiding the deeply metallogenie research of the hydrothermal deposit.