新疆博格达-哈尔里克构造带构造岩浆演化与成矿作用研究

摘要

Dananbu island arc was formed in Early Paleozoic,which mainly was composed of volcano-sedimentary rocks in Ordovician to Silurian.It has the development of a metallogenic system,includes VMS,epithermal and porphyry type deposit,and shows great potential for forming copper-gold polymetallic deposit.Harlik Paleozoic composite arc with frequent magmatic activity and complex tectonic showed multiple superposed.It has the ore-prospecting potential of porphyry and ductile shear zone type deposit.The Bogda back-arc basin has the larger-area distribution of volcano clastic rocks and normal sedimentary clastic rocks,which has ore-prospecting potential of epithermal veins and volcano hydrothermal type deposit.Comprehensive analysis shows that the Bogda-Harlik tectonic belt,which has complex geological process and multistage superimposed magrnatic activity,has favorable ore-forming geological conditions and with huge metallogenic potential for copper-gold deposit.%博格达弧后盆地大面积分布火山碎屑岩及正常沉积碎屑岩,具有寻找浅成低温热液脉型及火山热液型矿床的找矿潜力.哈尔里克古生代复合岛弧带岩浆活动频繁,构造作用复杂,呈多期叠加现象,具有寻找斑岩型成矿系统及韧性剪切带型矿产的找矿潜力.大南湖岛弧带形成于早古生代,主要为奥陶—志留系火山-沉积岩系,发育—套具有VMS型、浅成低温热液型以及斑岩型矿床的成矿系统,具有形成铜金多金属矿产的巨大潜力.综合分析认为,博格达-哈尔里克构造带地质作用复杂,岩浆活动多期叠加,成矿地质条件有利,具有巨大的铜、金成矿潜力.