新疆东天山卡拉塔格地区火山岩地层厘定及其意义  

Determination of volcanic strata in Karatag area,East Tianshan Mountains and its significance

作　　者：王洋 王京彬[3] 邓小华[3] 廖震 刘孜[3] 张岩 张锐 张伟 郑红伟 WANG Yang;WANG Jingbin;DENG Xiaohua;LIAO Zhen;LIU Zi;ZHANG Yan;ZHANG Rui;ZHANG Wei;ZHENG Hongwei(China National Mineral Exploration Co.,Ltd.,Beijing 100012,China;Hami Hongshi Mining Co.,Ltd.,Hami 839000,Xinjiang,China;Beijing Institute of Geology for Mineral Resources Co.,Ltd.,Beijing 100012,China)

机构地区：[1]中色地科矿产勘查股份有限公司,北京100012 [2]哈密红石矿业有限公司,新疆哈密839000 [3]北京矿产地质研究院有限责任公司,北京100012

出　　处：《矿产勘查》2021年第3期525-533,共9页Mineral Exploration

基　　金：国家重点研发计划(编号:2018YFC0604006);国家973项目(编号:2014CB440803);新疆维吾尔自治区高层次人才引进工程(编号:新人社函[2019]39号、新人社函[2015]648号)联合资助。

摘　　要：新疆东天山卡拉塔格地区发育一套与铜锌金成矿密切相关的火山-沉积岩系。不同时期的区域地质填图对该岩系的地层时代划分很不统一,岩石定名复杂多样。在矿区大比例尺填图和大量钻探工程编录的基础上,通过本次红海矿区深钻施工揭露了卡拉塔格红海矿区完整的地层层序,结合精确的同位素定年和区域地层对比分析,确定了该套火山-沉积岩系属早古生代,由老到新,由中下奥陶统荒草坡群大柳沟组、下志留统红柳峡组、下志留统卡拉塔格组组成,并厘定了各组之间接触关系及与之相关的成矿类型,为该区地质找矿和基础地质研究提供了科学依据。The Paleozoic volcanic-sedimentary strata associated with VMS copper-zinc-gold mineralization is well developed in Kalatag area of East Tianshan,Xinjiang. However,the lithologic assemblage and age of those rocks are controversial. Recently,new deep drilling projects have completed,which gives us an opportunity to obtain complete lithologic characteristics and help us to understand the evolution of regional geology.Based on the systematic observation of drill hole and analysis of previous chronological data,we tend to divide the Paleozoic volcanic-sedimentary strata from the Kalatag district into three units from bottom to top,namely,the Daliugou,Hongliuxia and Kalatag Formation. The Daliugou Formation consists of basalt andesite and andesite with age of Late Ordovician;the Hongliuxia Formation conclude tuffaceous sediments and tuff breccia and host VMS deposits;the Kalatag Formation is comprised of ignimbrite and dacite with age of Early Silurian. This work also provides a scientific basis for geological prospecting and basic geological research in future.

关 键 词：卡拉塔格 早古生代 火山岩地层 铜锌金矿 东天山 新疆 

分 类 号：P588.14[天文地球—岩石学]