内蒙古中部镁铁质-超镁铁质岩带铜镍成矿潜力探讨  

Discussion on the Copper and Nickel Metallogenic Potentiality of Mafic-Ultramafic Rocks in Central Inner Mongolia

作　　者：党智财 付超 李俊建[1,2] 田杰鹏 何江涛 DANG Zhicai;FU Chao;LI Junjian;TIAN Jiepeng;HE Jiangtao(Tianjin Center of China Geological Survey, Tianjin 300170, China;North China Center for Geoscience Innovation, China Geological Survey, Tianjin 300170, China;School of Earth Science and Resources, China University of Geosciences (Beijing), Beijing 100083, China)

机构地区：[1]中国地质调查局天津地质调查中心,天津300170 [2]中国地质调查局华北地质科技创新中心,天津300170 [3]中国地质大学(北京)地球科学与资源学院,北京100083

出　　处：《西北地质》2022年第1期142-155,共14页Northwestern Geology

基　　金：中国地质调查局项目“华北地区区域成矿规律研究与总结”(DD20190379-31);国家重点研发计划“深地资源勘查开采”重点专项(2016YFC0600107、2018YFC0603805-1)联合资助。

摘　　要：华北陆块北缘是中国铜镍(铂)硫化物矿床的重要成矿区带之一。近年来,在位于该成矿带的内蒙古中部先后发现多处铜镍矿床(点),空间上构成一条重要的镁铁质超镁铁质岩成矿带。为了探讨该镁铁质超镁铁质岩带内额布图、温更、克布、黄花滩及小南山等赋矿岩体的成矿潜力,笔者通过搜集和研究国内外典型铜镍硫化物矿床数据,建立有利成矿信息评价指标,并指导评价本区岩体的成矿潜力。研究认为,额布图、温更和克布岩体从矿物和岩石地球化学及岩浆分异演化等方面分析,具有较好的成矿地质条件,指示较好的成矿潜力;而黄花滩、小南山岩体从目前地球化学资料分析,成矿潜力相对较弱。The northern margin of North China Craton is an important metallogenic belts of Cu,Ni(Pt)sulfide deposits.Recently many Cu-Ni deposits(or ore occurrences)have been discovered in central Inner Mongolia spreading as a mafic-ultramafic belt.In order to explore the metallogenic potentiality in Erbutu,Wengeng,Kebu,Huanghuatan and Xiaonanshan in the belt,this paper summarized and analyzed the data of the typical Cu-Ni ore-bearing intrusions.It is suggested that ore-bearing intrusions in Erbutu,Wengeng and Kebu have good geological ore-forming conditions in aspects of the mineral,the petrology and the magmatic differentiation,indicating preferable metallogenic potentiality.Whereas ore-bearing intrusions in Huanghuatan and Xiaonanshan do not show much metallogenic potentiality.

关 键 词：镁铁质-超镁铁质岩 铜镍硫化物矿床 成矿潜力 内蒙古中部 

分 类 号：P612[天文地球—矿床学]