【作者】 付治国； 杨志强； 马晓辉； 郎岩峰； 杜春阳； 付恒一；

【Author】 Fu Zhiguo,Yang Zhiqiang,Ma Xiaohui,Lang Yanfeng Du Chunyang Fu Hengyi (No.2 Geolo -gical Exploration Institute of Henan Provincial Bureau of Geo -exploration and Mineral Development)

【机构】 河南省地质矿产勘查开发局第二地质勘查院；

【摘要】 东天山东戈壁（新疆哈密）超大型钼矿床是2006～2011年发现并探明的我国第十个超大型钼矿床,其成因类型为斑岩型钼矿。矿床地球化学特征如下:①1:20万水系沉积物综合异常,单元素组成:Bi、W、Mo、B、F,五种元素全部具较清晰的浓集中心,浓度分带和组分分带亦较清楚,且套合较好;②成矿母岩—斑状花岗岩岩石化学特征:SiO₂=74.42（高酸）、K₂O/Na₂O=1.71、K₂O+Na₂O=7.54（高碱）、K₂O 4.76（高钾）、里特曼指数1.81;③稀土元素地球化学:稀土总量132×10^-6,SEU 0.289,为强烈亏损;④矿床地球化学:元素综合异常组合为:Bi、Pb、W、Mo、Sn、Cu、Au、Zn、Ag等九种,其中Bi、Sn、W、Mo、Pb等五种元素均具清晰浓集中心,并且套合较好,显示高温元素组合的完整性和异常规则性。地质勘探验证,矿区1—甲,及2—丙₂综合异常均为矿致异常。根据矿床成矿母岩—斑状花岗岩的酸、碱、钾及稀土总量及其配分型式,说明成钼岩体为钙碱性系列的超浅成侵入岩,显示壳源型特征,岩石稀土地球化学分类属S型花岗岩类。更多还原

【Abstract】 The East Gobi（Xinjiang Hami） large type molybdenum deposit was discovered and proved in 2006 -2011 in China as the tenth oversized type molybdenum deposit,the genetic types of porphyry molybdenum deposit.Geochemistry are as follows:1:200000 stream sediment anomaly,single elements:Bi, W,Mo,B,F,five elements all with a clear concentration center,concentration distribution and fractions are relatively clear,and the sleeve is good;the metallogenic mother rock,porphyritic granite petrochemistry features;SiO₂ =74.42（high acid ）,K₂O / Na₂O = 1.71,K₂O±Na₂O = 7.54（alkali ）,K₂O 4.76（k ）,Ritter Mann index 1.81,the rock type is S type granite;geochemistry of rare earth elements:the total amount of rare earth 132×10^-6,SEU 0.289,strong loss;the deposit geochemistry:comprehensive element anomaly combination;Bi,Pb,W,Mo,Sn,Cu,Au,Zn,Ag nine,Bi,Sn,W,Mo,Pb and other five kinds of elements are a clear concentration center,and the sleeve is good,show assembly completeness and abnormal rules of high temperature elements.Geological exploration and verification,in 1 - 1 and 2 - C 2 comprehensive anomalies are caused by mineralization anomalies.According to the metallogenic mother rock,porphyritic granite acid,alkali,potassium and total amount of rare earths and their distribution patterns, instructions into molybdenum rock calc - alkaline series of ultra shallow intrusive rock,display shell source type characteristics,rock REE geochemical classification of S type granite.更多还原