新疆伊吾淖毛湖金矿床地质特征及成矿模式  

Geological characteristics and metallogenic model of the Naomaohu gold deposit in Yiwu County,Xinjiang

作　　者：唐兴国 李朝旭[2] 倪新源 

机构地区：[1]新疆地矿局第二区域地质调查大队,新疆昌吉831100 [2]江苏省有色金属华东地质勘查局地球化学勘查与海洋地质调查研究院,江苏南京210007

出　　处：《地质学刊》2015年第2期181-186,共6页Journal of Geology

基　　金："九五"国家科技攻关项目"新疆伊吾县淖毛湖金矿成矿条件研究与矿床定位预测"(96-915-05-03)

摘　　要：根据对淖毛湖金矿床地质特征分析,认为淖毛湖金矿床的形成与火山-岩浆及构造活动关系密切。沿构造蚀变带产出的黄铁绢英岩出露地段往往是金矿体产出地段,是直接找矿标志。下泥盆统托让格库都克组火山岩地层、浅成的小规模中酸性侵入体(如闪长玢岩、闪长岩等)、岩屑化探Au、Ag、As、Co、Cu、Zn综合异常分布范围以及激电测量表明的低阻中高极化异常区带,均是间接找矿标志。Through analysis of the geological characteristics of the Naomaohu gold deposit in Xinjiang, it is indicated that the formation of this deposit is closely related to volcano-magmatic and tectonic activities. The beresite outcropping areas along tectonic altered belts often host gold orebodies, which can be considered as a direct prospecting indicator. Indirect prospecting indicators include volca- no rock strata in the Lower Devonian Tuoranggekuduke Formation, small-scale hypabyssal intermediate-acidic intrusive bodies （ such as diorite and diorite porphyrite）, debris geochemical comprehensive anomalies of Au, Ag, As, Co, Cu and Zn indicative of mineraliza- tion distribution range, and IP survey showing low resistivity and high polarization anomaly areas determined from induced polarization surveys.

关 键 词：地质特征 金矿床 找矿标志 淖毛湖 新疆伊吾 

分 类 号：P618.51[天文地球—矿床学]