新疆喀喇昆仑地区伟晶岩型锂矿床综合找矿信息特征与找矿预测  

Comprehensive prospecting information characteristics and prospecting prediction of pegmatite type lithium deposits in Karakoram area,Xinjiang

作　　者：黄理善 朱景和[3] 胡祥云 荆林海 丁海峰 裴超 周奇明 赵立克 杨英 唐玉红 陈长敬[5] HUANG Lishan;ZHU Jinghe;HU Xiangyun;JING Linhai;DING Haifeng;PEI Chao;ZHOU Qiming;ZHAO Like;YANG Ying;TANG Yuhong;CHEN Changjing(China Nonferrous Guilin Mineral Geology Research Institute Co.,Ltd.,Guilin 541004,Guangxi,China;China University of Geosciences(Wuhan),Wuhan 430074,Hubei,China;China Nonferrous Metals Mining Group Co.,LTD.,Beijing 100029,China;Aerospace Information Research Institute Chinese Academy of Sciences,Beijing 100094,China;Wuhan Center of China Geological Survey,Wuhan 430223,Hubei,China)

机构地区：[1]中国有色桂林矿产地质研究院有限公司,广西桂林541004 [2]中国地质大学(武汉),湖北武汉430074 [3]中国有色矿业集团有限公司,北京100029 [4]中国科学院空天信息创新研究院,北京100094 [5]中国地质调查局武汉地质调查中心,湖北武汉430223

出　　处：《矿产勘查》2023年第9期1525-1544,共20页Mineral Exploration

基　　金：新疆维吾尔自治区科技厅“十三五”重大专项课题项目“喀喇昆仑成矿带稀有金属大型矿床预测和靶区优选评价”(2018A03004-3);中国有色矿业集团有限公司科技计划项目“金属矿山强干扰条件下有效探测及异常识别新技术研究与示范”(2021KJJH08);研发平台项目“有色金属矿产勘查工程技术研究中心条件建设”(2021YFPT04)联合资助。

摘　　要：新疆喀喇昆仑地区是中国重要的稀有金属成矿带,已发现一批大中型花岗伟晶岩型锂多金属稀有金属矿床,具良好的资源找矿潜力。为快速实现该地区稀有金属矿产找矿远景区的圈定,其有效的综合找矿模式亟待研究和总结。以雪凤岭伟晶岩型锂多金属矿床为典型矿床,在研究矿床地质特征和成矿规律的基础上,开展方法有效性试验与研究,剖析总结了遥感、地球物理、地球化学等综合找矿信息特征及其找矿指示意义,建立了研究区伟晶岩型锂多金属矿床地层、构造、岩性、蚀变特征、遥感特征、地球化学特征和地球物理特征等综合信息找矿模型,利用该模型及证据权法对喀喇昆仑地区康西瓦—大红柳滩—甜水海一带开展找矿预测,圈定6处找矿远景区;初步优选出俘虏沟南、阿克萨依和红山湖3处找矿靶区,预测其具有中—大型矿床规模的资源潜力,效果显著。基于地质、地球物理、地球化学和遥感等综合信息找矿模型与证据权法的找矿技术,可以实现该地区锂矿床快速找矿,为类似地区开展稀有金属矿床预测与评价提供了参考。The Karakoram area in Xinjiang is an important metallogenic belt of rare metals in China.A number of large and medium sized granite-pegmatite-type lithium polymetallic rare metal deposits have been discovered,which has good resource prospecting potential.In order to rapidly realize the delineation of the prospecting area for rare metal minerals in this area,its effective integrated prospecting model needs to be studied and summarized.Taking Xuefengling Pegmatite-type lithium polymetallic deposit as a typical deposit,on the basis of studying the geological characteristics and metallogenic regularity of the deposit,the validity test and study of the method are carried out.This paper analyzes and summarizes the features of the comprehensive information on prospecting,such as remote sensing,geophysics and geochemistry,and their significance as prospecting indica⁃tors,a comprehensive information prospecting model for pegmatite-type lithium polymetallic deposits in the study area,including stratigraphy,structure,lithology,alteration,remote sensing,geochemistry and geophysical characteristics,has been established,the model and weight of evidence method are used to predict the prospecting of Kangxiwa-Dahongliutan-Tianshuihai area in Karakoram area,and 6 prospective prospecting areas are delineated.Three ore-prospecting targets of captive Gulonan,Aksai and Hongshanhu have been preliminarily selected,and their resource potentials of medium-large scale ore deposits have been predicted with remarkable results.Prospecting techniques based on integrated information such as geological,geophysics,geochemistry and remote sensing prospecting models and weight of evidence methods can achieve rapid prospecting for lithium deposits in the area,it provides a reference for the prediction and evaluation of rare metal deposits in similar areas.

关 键 词：喀喇昆仑 伟晶岩型锂矿床 找矿信息 证据权法 找矿预测 

分 类 号：P612[天文地球—矿床学]