庄河市新房金矿区找矿方向探讨

Exploration on the Exploration Direction of Xinfang Gold Mine in Zhuanghe City

庄河市新房金矿区为辽南地区新发现的大型矿床,属庄河-桓仁断裂构造体系,区内褶皱构造发育程度一般,断裂构造较为发育,庄凤构造虽然为区域内规模最大构造,但属导矿构造,其次级构造燕山期构造为成矿期控矿构造,矿体多而分散,研究区域成矿规律对找矿突破有着重要指导意义。通过分析该矿区区的地质特征、矿体特征、矿床成因。明确了该矿床以充填、交代为主,属于中-低温热液交代充填型成因。含金地质体赋存于太古界鞍山群变片麻岩地层内,具明显层控性,主要为石英脉、硅钾蚀变岩二类含金地质体,两者呈迭加过渡关系或单独产出,属石英脉和硅钾蚀变岩型金矿,指出元古代盖层与太古代基底接触带部位是找矿有利靶区。

The Xinfang gold mining area in Zhuanghe City is a newly discovered large-scale deposit in southern Liaoning.It belongs to the Zhuanghe-Huanren fault structural system.The fold structures in the area are generally developed and the fault structures are relatively developed.Although the Zhuangfeng structure is the largest structure in the area,but it is an ore-guiding structure,and its secondary structure,the Yanshan period structure,is an ore-controlling structure during the mineralization period.The ore bodies are numerous and scattered.Studying the regional mineralization laws has important guiding significance for mineral prospecting breakthroughs.By analyzing the geological characteristics,ore body characteristics and ore deposit origin of the mining area.It is clear that the deposit is mainly filled and metasomatic,and it belongs to the medium-low temperature hydrothermal fluid metasomatic filling type.The gold-bearing geological bodies occur in the Archaean Anshan Group metagneiss strata and have obvious layer control.They are mainly two types of gold-bearing geological bodies:quartz veins and silicon-potassium alteration rocks.The two are in a superimposed transitional relationship or are separate.The output is a quartz vein and silicon-potash altered rock type gold deposit,indicating that the contact zone between the Proterozoic caprock and Archean basement is a favorable target area for ore prospecting.