新疆东戈壁钼矿床斑岩体特征及成因分析

Characteristics and Origin of the Donggebi Molybdenum Deposit Porphyry in Xinjiang

新疆东戈壁钼矿位于北觉罗塔格晚古生代岛弧增生带内,是新疆探明的第一个特大斑岩型钼矿床。东戈壁斑岩型钼矿床斑岩体为隐伏斑状花岗岩体,属S型花岗岩,在斑状花岗岩体中可见辉钼矿化、黄铁矿化、黄铜矿化等金属矿物矿化,岩体侵位深度相对较深。觉罗塔格晚古生代岛弧增生带具良好成矿条件,区域上找矿潜力巨大。因此,研究东戈壁钼矿床斑岩体特征和成因,对该成矿带内寻找同类型钼矿床具一定指导意义。

The Xinjiang Donggebi molybdenum deposit is located in the late paleozoic islandarc accretion zone in the northern part of the Jueluotag area. It＇ s demonstrated as a superclassporphyrytype molybdenum deposit. The Donggebi porphyry related with the molybdenum deposit is a concealed porphyritic granite rock mass, which belongs to Stype. There is mineralization in the porphyritic granite rock mass, such as molybdenite, pyrite, chalcopyrite and so on. The invation of the rock mass is relatively deep. There is good minerogenetic condition in the late paleozoic islandarc accretion zone of the north Jueluotag for regional oresearching. Therefore, research on the characteristic and origin of the Donggebi molybdenum deposit porphyry is very important for further prospecting in this metallogenic belt.