摘要
通过对全球铁、锰、铬、铜、镍、钴、铝、铅、锌、钨、钼、锡、锑、金、银、铂族元素、锂等矿种1000多个大型—超大型金属矿床成矿地质年代与矿床类型数据资料统计分析,阐述了主要金属在全球暨4大成矿域的成矿演化特征。指出全球大型-超大型金属矿床具有如下显著特征:一是形成于所在地质构造单元/成矿单元的晚期构造-岩浆旋回或构造-岩浆-沉积旋回的晚期阶段,二是不少金属矿床在新生代表生地质活动过程中发生了再富集,三是新生代是全球大部分金属矿床形成的高峰期。笔者将这种成矿演化特征与机制称之为滞后成矿作用。滞后成矿作用在金属矿床历史演化中普遍存在。不同金属的滞后成矿作用与其元素地球化学性质密切相关,并受大地构造演化制约。
By the statistical analysis of the data on the geological age and deposit types of over 1000 large-superlarge metallic deposits worldwide,including Fe,Mn,Cr,Cu,Ni,Co,Al,Pb,Zn,W,Mo,Sn,Sb,Au,Ag,PGE,Li,the metallogenic evolution characteristics of major metals in the globe and four major metallogenic domains are elaborated.Many large-superlarge metallic deposits worldwide form in the late stage of tectonic magmatic cycles or tectonic-magmatic-sedimentary cycles in their geological structural units/metollogenic units.Many metals have undergone re-enrichment during the geological activities of the Cenozoic era,which is the peak period for the formation of most large-superlarge metallic deposits worldwide.This process and mechanism are called metallogenic hysteresis.Metallogenic hysteresis commonly exists in the global historical metallogenic evolu⁃tion.Metallogenic hysteresis of different metals is closely related to their elemental geochemical properties and is constrained by tectonic evolution.
作者
叶锦华
梅燕雄
陈秀法
张伟波
陈喜峰
张金良
YE Jinhua;MEI yanxiong;CHEN Xiufa;ZHANG Weibo;CHEN Xifen;ZHANG Jinliang(Development and Research Center,China Geological Survey,Bejing 100037,China;Mineral Resource Institute,China Geological Sciences,Beijing 100037,China;China Non-ferrous Metals Resource Geological Survey,Beijing 100012,China)
出处
《矿产勘查》
2024年第11期1991-2007,共17页
Mineral Exploration
基金
中国地质调查局地质调查项目“一带一路”矿产资源信息采集与综合研究(DD20160119)
全国海陆矿产资源图件更新(DD20221696)联合资助。
关键词
滞后成矿作用
全球成矿演化
大型-超大型金属矿床
矿床类型演化
metallogenic hysteresis
global metallogenic evolution
large-superlarge metallic deposits
ore deposit types
