摘要
大南沟金矿床矿体赋存于大石桥岩组大理岩和盖县岩组二云片岩中,受北西向断裂控制,矿化以黄铁矿化为主,次为黄铜矿化、闪锌矿化等,围岩蚀变以硅化、钾长石化为主,碳酸盐化等次之。为了进一步查明大南沟金矿区物化探异常与金矿化的关系,采用地质填图、土壤地球化学测量、激电中梯剖面测量、激电测深、槽探和钻探工程验证等方法进行了综合勘查。利用土壤地球化学测量圈定综合异常2处;为了查明深部地质特征,在HT1号综合异常处布设激电中梯剖面测量和激电测深;采用槽探和钻探验证,探获2条矿体,取得了良好的找矿效果。研究提出了找矿前景,为进一步找矿勘查提供参考。
The orebodies of the Danangou Gold Deposit are hosted in the Dashiqiao Formation marble and the Gaixian Formation biotite schist,and are controlled by NW‑trending faults.Mineralization is dominated by pyritization,with subordinate chalcopyrite and sphalerite alteration.Wall rock alteration is primarily silicification and K‑feldspar alteration,followed by carbonate alteration.To better understand the relationship between geophysical-geochemical anomalies and gold mineralization in the Danangou Gold District,an integrated prospecting program was carried out using geological mapping,soil geochemical survey,induced polarization(IP)intermediate gradient profiling,IP sounding,trenching,and drilling engineering verification.2 integrated anomalies were delineated through soil geochemical survey.To identify deep geological features,IP intermediate gradient profiling and IP sounding were conducted at the HT1 integrated anomaly site.Trenching and drilling were used for verification,and 2 orebodies were discovered,demonstrating good prospecting results.The study proposes a promising prospecting outlook and provides guidance for further mineral prospecting.
作者
杨红恩
董军
徐云霞
朱丽红
刘悦
陈军典
周泳君
Yang Hong’en;Dong Jun;Xu Yunxia;Zhu Lihong;Liu Yue;Chen Jundian;Zhou Yongjun(Liaoning Non‑ferrous Geological Exploration and Research Institute Co.,Ltd.;Liaoning Geological and Mineral Group Mining Co.,Ltd.;Liaoning Geological Exploration and Mining Group Co.,Ltd.;Geophysical Measuring Exploration Institute of Liaoning Province)
出处
《黄金》
2025年第8期92-98,共7页
Gold
基金
辽宁省省级勘查项目(辽自然资项〔2023〕44号)。
关键词
大南沟
金矿床
土壤地球化学测量
激电中梯
地质特征
综合异常
围岩蚀变
Danangou
gold deposit
soil geochemical survey
IP intermediate gradient
geological characteristics
integrated anomaly
wall rock alteration
