内蒙古西乌旗准好莱西地区铜多金属成矿地质特征及找矿标志

Geological characteristics and prospecting marks of Cu polymetallic mineralization in Zhuhaolaixi area,Xiwuqi,Inner Mogolia

内蒙古西乌旗乌兰哈拉嘎位于兴蒙造山带东南部,区内地层缺失较多,以古生代和中新生代地层为主,岩浆和构造活动较强,地球化学调查显示有明显的异常浓集区。本文从西乌旗乌兰哈拉嘎苏木地区的成矿地质背景着手,分析了区内与成矿有关的地质因素,详细论述了准好莱西铜多金属矿(点)的成矿地质特征,总结了找矿标志。分析认为,该区石炭-二叠系是铜多金属矿的成矿围岩,土壤地球化学异常和航磁异常对找矿的指示意义较大,热液蚀变是最直接的找矿标志。

Wulanhalaga area of Xiwuqi of Inner Mongolia is located in the southeast Xing-Meng orogenic belt.Here are developed mainly Paleozoic,Mesozoic,Cenozoic strata and strong tectonic-magmatic activities.Geochemical survey is carried out with element concentration anomalies lineated.This paper analyzes geological factors related to Cu polymetallic metallogenesis according to geological and metallogenic background of the area and details geological characteristics of Zhunhaolaixi Cu polymetallic ore occurrence and summarizes the prospecting marks.Rock of Carboniferous-Permian System is the country rock of Cu polymetallic mineralization.Soil geochemical anomaly and air magnetic anomaly are the guide and hydrothermal alteration the direct mark for prospecting Cu polymetallic deposit in the area.