广东河源盆地中部及周边多金属矿成矿地质条件、成矿规律与成矿远景分析

Metallogenic Geological Conditions, Regularity and Prospect Analysis of Polymetallic Deposits in Central and Surrounding Heyuan Basin of Guangdong Province

河源盆地中部地处永安-梅州-惠州成矿带和粤中成矿带的交汇处,地质构造复杂,岩浆活动强烈,成矿地质条件较好。目前已发现多个矿产地,矿种类型有Fe、Pb、Zn、Sn、W等,矿床类型主要为高温热液裂隙充填型、高-中温热液型、中-低温热液型、矽卡岩型,其次有风化壳型。通过分析区域成矿地质条件,总结了成矿时空演化规律,并划分出2个成矿远景区,为下部勘查工作提供方向。

The central Heyuan Basin is located at the intersection of Yongan-Meizhou-Huizhou metallogenic belt and Yuezhong metallogenic belt,with complex geological structure,strong magmatic activity and good metallogenic geological conditions.At present,a number of mineral deposits have been found,including Fe,Pb,Zn,Sn,W,etc.The deposit types are mainly high temperature hydrothermal fissure filling type,high-medium temperature hydrothermal type,medium-low temperature hydrothermal type,skarn type,followed by weathering crust type.Based on the analysis of regional metallogenic geological conditions,the temporal and spatial evolution law of mineralization is summarized,and two metallogenic prospect areas are divided to provide direction for the lower exploration work.