安徽省沿江和皖南地区铜(金)矿不同成矿背景对比分析  

COMPARATIVE ANALYSIS OF DIFFERENT ORE-FORMATION SETTINGS OF COPPER(GOLD) ORE DEPOSITS ALONG THE YANGTZE RIVER AND IN SOUTHERN PART OF ANHUI PROVINCE

作　　者：李文庆[1] 

机构地区：[1]安徽省公益性地质调查管理中心,安徽合肥230001

出　　处：《安徽地质》2014年第2期99-102,共4页Geology of Anhui

摘　　要：通过对安徽省几个重点铜（金）成矿区（带）矿床分布特点的搜集，以及对不同成矿背景下成矿机理的剖析，认为在这些地区铜（金）矿形成除受控于不同的地层、构造和岩浆岩条件外，还受板内挤压、碰撞所产生的特定岩石、蚀变影响；通过测年数据显示安徽省沿江地区铜（金）矿成矿主要集中在137.4-139Ma和133＋2.3Ma两个时间段；同时认为不同成矿类型在同熔型岩石系列的地区，其上下垂直空间可能存在重叠性，为在这些地区寻找铜（金）第二成矿空间提供一些理论借鉴意义。Based on collection of distribution characteristics of deposits in a couple of key copper （gold） metallogenic zones （belts） in Anhui Province, and analysis of ore-forming mechanisms in different metallogenic settings, it is suggested that the copper （gold） deposits in these areas are not only controlled by different strata, structures and magmatic rocks, but also affected by specific rock and alteration formed by intraplate compression and collision. Dating result shows that copper （gold） deposits along the Yangtze River in Anhui Province formed mainly in two time ranges of 137.4-139Ma and 133＋2.3Ma. In the areas of syntactic rock series, different types of deposits are thought to possibly co-exist in a vertical space overlapping each other, which is theoretically a clue for copper （gold） exploration in a second space.

关 键 词：铜(金)矿 成矿机理 找矿空间 沿江 

分 类 号：P618.41[天文地球—矿床学]