新疆阔尔真阔腊金矿床中伴生钴的发现及其找矿地质意义  

DISCOVEREY OF ASSOCIATED COBALT IN KUOERZHENKUOLA GOLD DEPOSIT AND ITS GEOLOGICAL SIGNIFICANCE FOR EXPLORATION

作　　者：尹意求[1] 李嘉兴 唐红松[1] 胡兴平 陈大经 仇银江 马忠美 

机构地区：[1]桂林矿产地质研究院,广西桂林541004 [2]新疆有色地质勘查局,新疆阿勒泰836500

出　　处：《矿产与地质》2003年第1期1-5,共5页Mineral Resources and Geology

基　　金：为国家重点科技攻关项目(国家三0五项目)96-91-01-05专题的部分研究成果。

摘　　要：阔尔真阔腊金矿床位于新疆准噶尔西北缘的萨吾尔山东部,形成于晚古生代岛弧构造环境,受隐爆角砾岩筒控制,其容矿岩石为中泥盆统萨吾尔山组的岛弧型富钠质安山岩。金矿石中硫化物的钴含量较高,为0.007×10-2～0.15×10-2,平均0.04×10-2。19个样中,Co≥0.02%的有14个,占74%,往深部钴含量有变富倾向。建立了阔尔真阔腊浅成低温热液金矿床二阶段成矿的套叠式结构找矿模型,开拓了阔尔真阔腊矿区的找矿思路。阔尔真阔腊金矿床中伴生钴的发现具有重要的找矿地质意义。Kuoerzhenkuola gold deposit is located in the eastern Sawuershan, Northwestern margin of Zhungaer Basin, Xinjiang.It was formed in the structural environment of island arc of Late Palaeozoic Era,and controlled by the cryptoexplosion breccia and volcanic apparatus. The orebearing rock is Narich andesite of island arc type in the Sawuershan formation of Middle Devonian. Cobalt contents of sulfides in the gold ores are higher, and they are 0.007×10-2~0.15×10-2,0.04×10-2on the arerage. There are 14 samples which contain Co≥0.02% among the 19 samples, accounting for 74% , and cobalt contents become rich towands the depth. Hereby an epithermal gold deposit exploration model has been set up for the deposit.It is two stages of ore deposition with overlapping structures.The model widens the view of exploration in Kuoerzhenkuola ore field.The discovery of associated cobalt in Kuoerzhenkuo gold deposit is of great importance for geological exploration.

关 键 词：矿床学 金矿床 伴生钴 找矿模型 阔尔真阔腊 新疆 

分 类 号：P618.51[天文地球—矿床学] P618.62[天文地球—地质学]