甘肃大水金矿控矿因素及找矿认识研究  

Ore controlling factors and prospecting knowledge of Dashui gold deposit in Gansu Province

作　　者：郭启鹏 GUO Qi-peng(The third geological and Mineral Exploration Institute of Gansu Bureau of Geology and mineral resources,Lanzhou 730050,China)

机构地区：[1]甘肃省地矿局第三地质矿产勘查院,甘肃兰州730050

出　　处：《世界有色金属》2021年第4期72-73,共2页World Nonferrous Metals

摘　　要：甘肃大水金矿地层中,矿体多而复杂,存在较多的破碎带及断层构造,地层控矿及找矿难度较大。特此对大水金矿区控矿因素及找矿认识加以研究。首先在控矿因素中,根据矿区地质样本采集情况,认识该地区金矿的地球化学特征并作为控矿的数据支持。其次依据矿区的地质特征,并根据地质特征来进一步判断矿体空间的分布特征,以此作为控矿因素。在找矿过程中,首先利用遥感卫星绘制矿区的遥感影像图,识别矿区的断裂构造。其次对矿区矿化异常进行地球化学特征分析,标注化学异常区域,缩小找矿靶区。最后利用地面磁法对靶区进行异常检测,最终确定找矿区域。In the Dashui gold deposit area of Gansu Province,the ore bodies are in disorder and there are many broken rock mass structures,which bring difficulties for ore control and prospecting in the area.Therefore,the ore controlling factors and prospecting knowledge of Dashui gold deposit in Gansu Province are put forward.First of all,among the ore controlling factors,the geological samples of the area are collected to judge the geochemical characteristics of the gold deposits in the area and serve as the data support for ore controlling.Secondly,determine the geological characteristics of the area,and further judge the spatial distribution characteristics of the ore body according to the geological characteristics,and take it as the ore control factor.In the process of prospecting,the remote sensing image map of the area is drawn by using remote sensing satellite,and the suspected mining area is marked.Secondly,the geochemical characteristics of the suspected mining area are analyzed,and the chemical anomaly area is marked to narrow the scope of the suspected mining area.Finally,the ground magnetic method is used to detect the reduced mining area,and the prospecting area is obtained.

关 键 词：控矿因素 断裂构造 遥感影像图 分布特征 

分 类 号：P612[天文地球—矿床学]