华南与东南亚钨锡成矿作用对比  

A Comparison of Tungsten-tin Mineralization in South China and Southeast Asia

作　　者：洪涛 马靖 吴琪 张璋 HONG Tao;MA Jing;WU Qi;ZHANG Zhang(Guangdong Key Laboratory of Geodynamics and Geohazards,School of Earth Sciences and Engineering,Sun Yat-sen University,Zhuhai 519082,Guangdong,China;Southern Marine Science and Engineering Guangdong Laboratory(Zhuhai),Zhuhai 519082,Guangdong,China;MNR Information Centre,Beijing 100812,China)

机构地区：[1]广东省地球动力作用与地质灾害重点实验室,中山大学地球科学与工程学院,广东珠海519082 [2]南方海洋科学与工程广东省实验室(珠海),广东珠海519082 [3]自然资源部信息中心,北京100812

出　　处：《大地构造与成矿学》2024年第5期964-978,共15页Geotectonica et Metallogenia

基　　金：广东省自然科学基金面上项目(2022A1515010003);国家自然科学基金原创探索项目(42250202);中山大学高校基本科研业务费(24lgqb001)联合资助。

摘　　要：钨锡是重要的战略性关键矿产,也是我国传统的优势矿产资源。本文对我国重要的华南钨锡产区以及全球知名的东南亚锡成矿带进行了系统的总结与梳理,分析表明:(1)与钨矿化有关的岩浆岩多为陆壳重熔S型花岗岩;与锡矿床相关的岩浆岩可为S型、I型和A型花岗岩等,其所处位置壳幔相互作用强烈;(2)华南与东南亚地区的钨锡成矿作用可能主体受控于特提斯构造带的演化,在华南地区形成了160~150 Ma、150~140 Ma、120~80 Ma的锡成矿峰期,160~150 Ma钨成矿峰期,并且呈现“钨多锡少、东钨西锡”的时空分布格局;而东南亚地区只有80 Ma的锡成矿峰期,并没有大规模的钨成矿作用;(3)对比两个成矿产区发现,构造背景、沉积物特征(东南亚地区缺少钨的矿源层)和岩浆活动与性质(氧逸度等)等方面的影响因素,以及W与Sn元素不同的地球化学性质,可能控制了华南与东南亚地区钨锡时空分布的差异性。Tungsten and tin are significant critical minerals.The COVID-19 pandemic makes it urgently necessary to further strengthen research on tungsten and tin in China and neighboring areas.This paper systematically summarizes and analyzes the important tungsten-tin districts in South China and the well-known tin metallogenic belts in Southeast Asia.The conclusions can be summarized as follows:①The tungsten-bearing granites are mostly S-type and originate from the remelting of continental crust,whereas the tin-bearing granites can be S-,I-,and A-type as long as intensive crust-mantle interactions are involved.②The tungsten and tin mineralization in South China and Southeast Asia may be mainly controlled by the evolution of the Tethys tectonic belt.The tin metallogenic peak periods of 160-150 Ma,150-140 Ma,120-80 Ma,and the tungsten metallogenic peak period of 160-150 Ma are preserved in South China,displaying a spatial and temporal distribution pattern of“more tungsten and less tin,Sn mineralization becomes stronger westwards”.However,Southeast Asia only preserved the ca.80 Ma tin peak mineralization period without large-scale tungsten mineralization.③The spatial and temporal distribution of tungsten and tin deposits in South China and Southeast Asia were likely controlled by a combined impacts of tectonic background,the characteristics of sediments(lacking tungsten source bed in Southeast Asia),magmatic activities,properties of magmas(oxygen fugacity,etc.),and different geochemical properties of tungsten and tin.

关 键 词：钨锡 华南与东南亚 成矿作用 特提斯构造演化 

分 类 号：P612[天文地球—矿床学]