摘要
九仗沟金矿床位于华北陆块南缘的熊耳山金矿化集中区,区域构造、岩浆活动强烈,成矿地质背景好。本文通过对前人资料的总结,以及近年来矿山探矿实践和取得的第一手资料为基础,总结矿体地质特征、矿体的赋存规律,对矿体进行深部预测,为下一步探矿指明方向。研究区矿体严格受断裂构造破碎带控制,多赋存于断裂带及蚀变带内,其中NNE向F1断裂构造是良好的成矿构造。矿体上、下盘围岩蚀变存在差异,其中矿体上盘的钾化蚀变带是找矿的直接标志。区内矿体侧伏现象普遍存在,矿体有向深部延伸的可能。在探矿过程中可利用矿体的赋存规律,来提高探矿效率。
The Jiuzhanggou gold deposit is located in the Xiong’ershan gold mineralization concentration area on the southern margin of the North China Platform.The regional tectonics and magmatism are active with the good metallogenic geological background.Based on the summary of the predecessors’data and the practice of mining prospecting and the first-hand data obtained in recent years,this paper summarizes the geological characteristics of the ore body and the law of the deposit of the ore body,and makes a deep prediction of the ore body to indicate the direction for the next prospecting.The ore body in the research area is strictly controlled by the fracture zone of the fault structure,and the multi-occurrence and fracture zone and the alteration zone,in which the NNE to F1 fault structure is a good metallogenic structure.There are differences between the upper and lower wall rock alteration,at the same time,the potassium alteration zone in the upper wall of ore body is a direct indicator of ore prospecting.The phenomenon of ore body lateral lodging is widespread in this area,and the ore body may extend to the depth.In the process of ore exploration,the occurrence law of ore bodies can be used to improve the efficiency of ore exploration.
基金
中国地质调查局项目“河南省熊耳山–外方山金多金属矿整装勘查区专项填图与技术应用示范”(编号12120114035401)
山东黄金矿业集团科研项目(项目编号:H18-094)资助。
