非洲大陆岩石圈演化与成矿关系  

Relationship between lithospheric evolution and mineralization in Africa Continent

作　　者：邱瑞照[1] 赵国春[2] 邱磊 刘勇[3] 孙凯[2,4] 肖庆辉 周肃[2] 赵宏军[1] 任晓栋[2] 范玉须 高千 QIU Ruizhao;ZHAO Guochun;QIU Lei;LIU Yong;SUN Kai;XIAO Qinghui;ZHOU Su;ZHAO Hongjun;REN Xiaodong;FAN Yuxu;GAO Qian(Development and Research Center,China Geological Survey,Beijing 100037,China;China University of Geosciences,Beijing 100083,China;Institute of Geology,Chinese Academy of Geological Sciences,Beijing 100037,China;Tianjin Center,China Geological Survey,Tianjin 300170,China;General Prospecting Institute China National Administration of Coal Geology,Beijing 100039,China)

机构地区：[1]中国地质调查局发展研究中心,北京100037 [2]中国地质大学,北京100083 [3]中国地质科学院地质研究所,北京100037 [4]中国地质调查局天津地调中心,天津300170 [5]中国煤炭地质总局勘查研究总院,北京100039

出　　处：《地质通报》2022年第1期19-33,共15页Geological Bulletin of China

基　　金：国家国际科技合作专项《中美环太平洋成矿带成矿规律对比与资源评价技术研究》(编号:2011DFA22460);中国地质调查局项目《全国陆域及海区地质图件更新与共享》(编号:DD20190370);内蒙古自治区地质勘查基金中心院士项目《内蒙古阿拉善珠斯楞—乌力吉地区铜金多金属矿成矿作用与找矿预测研究》(编号:[2020]院士-01)。

摘　　要：岩石圈深部过程与成矿关系研究是当今地球科学的前沿,对于深化成矿地质背景了解、总结成矿规律、有效开展资源潜力评价、提高矿产勘查效果等具有重要意义。以岩石圈角度划分的非洲大陆新大地构造单元为基础,分析了矿产资源的时空分布特征,讨论了克拉通型、造山带型、裂谷型等不同类型岩石圈的成矿特色。根据非洲大陆形成和岩石圈演化,区分非洲大陆不同类型岩石圈的壳-幔状态,即物质形成时代、结构形成时代,结合主要矿产空间分布、矿床类型及矿产组合,划分出现今非洲大陆27个成矿区带。从地质过程的“动态”视角审视和划分非洲大陆成矿区带,是以深部过程与成矿为主线的有益探索和尝试,为在非洲地区开展资源评价与选区提供了新的思路和参考。The research on the relationship between deep lithospheric process and mineralization is the forefront of Geoscience.It is of great significance to deepen understanding of metallogenic geological setting,summarize metallogenic regurality,effectively assess resource potential and improve the effect of mineral exploration.Based on the new tectonic units of the African Continent divided by lithosphere,the temporal-spatial distribution of mineral resources was analyzed,and the metallogenic characteristics in different types of lithosphere such as craton,orogeny and rift were analyzed.According to the formation and lithospheric evolution of the African Continent,the crust-mantle status of different types of lithosphere in the African Continent was distinguished,that is,the age of material formation and the age of structure formation.Combined with the spatial distribution of main mineral resources,genetic types of ore deposits and assemblage of mineral resources,27 metallogenic belts in the present African Continent were divided.It is a useful exploration and attempt to examine and divide the metallogenic belt of the African Continent from the“dynamic”view of geological process,which is based on the relationship between deep geological process and mineralization.It would provide a new idea and reference for mineral resource evaluation and prospects generation in Africa.

关 键 词：岩石圈类型 岩石圈演化与成矿 成矿区带划分 非洲大陆 地质调查工程 

分 类 号：P544[天文地球—构造地质学] P611[天文地球—地质学]