辽宁大石桥五道沟金矿地质特征及成因浅析

Geological Characteristics and Genesis Analysis of Wudaogou Gold Deposit in Dashiqiao of Liaoning Province

五道沟金矿均赋存于含金构造蚀变带中,金矿体多见于含金构造蚀变带的中部,矿区内目前共发现5条金矿体,矿体延深大、品位富,呈脉状产出,矿体围岩蚀变比较发育,成矿物质主要来自辽河群地层,流体主要为古大气水深度循环,区域构造运动和同生断裂活动为深部物质上涌提供通道,同时成为含矿热液沉淀的场所。研究五道沟金矿地质特征及成因对该地区寻找金矿具有指导意义。

The Wudaogou gold deposit occurs in gold-bearing structural alteration zone,gold ore bodies are mostly found in the middle of gold-bearing structural alteration zone.At present,5 gold ore bodies have been discovered in the mining area.The ore bodies are deep,rich in grade and vein-like.The ore body surrounding rock alteration is relatively developed.The ore-forming materials mainly come from the strata of Liaohe group.The fluid is mainly the deep circulation of paleo-atmospheric water.Regional tectonic movement and syngenetic fault activity provide channels for deep material upwelling.At the same time,it becomes the site of ore-bearing hydrothermal precipitation.The study of geological characteristics and genesis of Wudaogou gold deposit is of guiding significance to the exploration of gold deposits in this area.