广东信宜长坑铜多金属矿床地质特征及成因分析

Geological characteristics and Genesis analysis of copper polymetallic deposit in Xinyi, Guangdong Province

广东信宜长坑铜多金属矿床位于著名的桂东-粤西成矿带,区内构造样式组合复杂,岩浆活动频繁,为区内丰富的矿产资源形成提供了丰富的热能。本文从地层、构造和岩浆岩3个方面总结了矿区地质特征,分析了矿体特征并总结了矿床成因,为进一步在该区域寻找类似的矿产资源提供帮助。通过研究表明,长坑铜多金属矿床属于中低温热液充填交代型矿床,与震旦系云开群云母石英片岩中密集的片理化带和节理带密切相关。

Guangdong Xinyi Changkeng copper polymetallic ore bed in the famous Guidong-western Guangdong province Metallogenic Belt, the structure of the area is complex, the magmatic activity is frequent, which provides abundant heat energy for the rich mineral resources formation in the area. This paper summarizes the geological characteristics of the mining area from 3 aspects of formation, structure and magmatic rocks, analyzes the characteristics of the ore body and summarizes the genesis of the deposit, and provides help for further searching for similar mineral resources in the region. The results show that the Changkeng copper polymetallic deposit belongs to the medium and low temperature hydrothermal filling metasomatic deposit, which is closely related to the dense flake physicochemical belt and Joint band in the Yunkai Mica quartz schist of the Sinian system.