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冀西北怀安县一带地球化学特征及找矿潜力分析

Analysis of Geochemical Characteristics and Prospecting Potential in Huaian County,Northwestern Hebei Province
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摘要 分析了河北怀安县一带1∶5万水系沉积物测量成果,重点对该区元素地球化学参数特征、元素相关性、异常特征分布规律及找矿潜力进行了分析。查明了工作区元素富集离散特征与分布分配规律,为基础地质研究和金属矿产勘查提供了地球化学依据。该区共圈定综合异常20处,其中甲类异常2处,乙类异常7处,丙类异常11处,筛选查证了综合异常7处,发现矿(化)点4处,尤其是Hs-18号异常区构造发育;热液活动显著,地表矿化蚀变发育,元素异常突出。通过查证,在异常区朱家洼村发现了Au、Mo矿化体,Au最高品位10.9 g/t,Mo最高品位0.03%。根据该区化探测量及异常查证成果,结合地质成矿背景,共划分了成矿远景区4处。 The results of 1∶50000 stream sediment survey in Huai'an County,Hebei Province are an-alyzed.The characteristics of geochemical parameters,element correlation,anomaly distribution and pros-pecting potential of elements in this area are analyzed.The characteristics of element enrichment dispersion and distribution distribution in the working area are found out,which provides geochemical basis for basic geological research and metal mineral exploration.A total of 20 comprehensive anomalies were delineated in this area,including two class A anomalies,seven class B anomalies and eleven class C anomalies.Seven comprehensive anomalies were screened and verified,and four mineralization(mineralization)points were found,especially the structure of Hs-18 anomaly area.The hydrothermal activity is remarkable,the surface mineralization alteration is developed,and the element anomaly is prominent.Through verification,Au and Mo mineralized bodies were found in Zhujiawa village in the abnormal area.The highest grade of Au is 10.9 g/t,and the highest grade of Mo is 0.03%.According to the results of geochemical survey and anomaly verifi-cation in this area,combined with the geological metallogenic background,four metallogenic prospect areas are divided.
作者 朱梦蕾 王占彬 曹龙 ZHU Menglei;WANG Zhanbin;CAO Long(Anhui Institute of Geophysical and Geochemical Prospecting Techniques;Xi'an Mineral Resources Investigation Center,CGS)
出处 《现代矿业》 CAS 2023年第8期1-5,15,共6页 Modern Mining
基金 中国地质调查局项目(编号:12120114008801)
关键词 地球化学 水系沉积物测量 找矿潜力 geochemistry stream sediment survey prospecting potential
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