东天山库姆塔格发现辉长岩中钼的超常富集  

Discovery of Abnormal Molybdenum Enrichment in Gabbro at Kumtag in the East Tian Shan Mountains

作　　者：程松林[1,2] 邓刚[2] 肖克炎[3] 张晓华[3] 丁建华[3] 孙莉[3] 陈明[3] 

机构地区：[1]中国地质大学,北京100083 [2]新疆地质矿产勘查开发局第六地质大队,哈密839000 [3]中国地质科学院矿产资源研究所,北京100037

出　　处：《地质与勘探》2010年第6期1015-1018,共4页Geology and Exploration

基　　金：国土资源大调查项目(121201096036);国家科技支撑项目(2006BAB01A01)联合资助

摘　　要：在新疆东天山库姆塔格新发现了辉长岩中钼元素的超常富集,超过了目前的工业品位。从野外产状看,与钼矿化直接相关的岩石均为辉长岩,共两类:一是规模较小但全岩矿化的辉长岩脉;二是规模较大但没有矿化的辉长岩体;矿化的辉长岩脉穿插于非矿化的辉长岩体之中。虽然辉长岩体矿区东侧有中酸性岩浆岩存在,但野外产状和现有的物化探工作尚未发现钼矿化与中酸性岩浆岩有直接关系。无论辉长岩的形成与钼的富集是否属于同一次地质作用的产物,这都可能是一种尚未被认识的、全新的钼矿床(矿化)类型,具有重要的理论意义。Abnormal enrichment of molybdenum has been recently found in gaobbro at Kumtag in the East Tian Shan Mountains,which exceeds the current industrial grade.From the occurrence in the field,the rocks related with molybdenum mineralization are all of gabbroite,which can be divided into two categories.One is gabbroic vein with a small scale and complete mineralization.The other is gabbroic bodies of a relatively large scale without mineralization.The mineralized gabbroic veins intervene in the non-mineralized gabbroic bodies.Although there is intermediate-acid magmatic rock in the east of the gabbroic deposit,field investigation and geophysical and geochemical surveys did not find its direct relationship with molybdenum mineralization.No matter whether the formation of gabbro and enrichment of molybdenum were the products of the same geological event,this is likely a new type of molybdenum deposits（mineralization）that is not fully recognized and has significant implications in theory.

关 键 词：辉长岩 钼矿 东天山 库姆塔格 

分 类 号：P588.1[天文地球—岩石学]