鄂北浅覆盖金矿区土壤微细粒分离测量有效性试验研究  

Validity experiment of fine-grained soil geochemical survey forgold deposits in shallow overburden area

作　　者：程普 翁雪波 黄景孟 刘晓阳 冷帅 杨成 孔令耀 Cheng Pu;Weng Xuebo;Huang Jingmeng;Liu Xiaoyang;Leng Shuai;Yang Cheng;Kong Lingyao(Hubei Provincial Institute of Spatial Planning,Wuhan,Hubei 430000;Hubei Geological Survey,Wuhan,Hubei 430034;Hubei Key Laboratory of Resources and Eco-environment Geology,Wuhan,Hubei 430034)

机构地区：[1]湖北省空间规划研究院,湖北武汉430000 [2]湖北省地质调查院,湖北武汉430034 [3]资源与生态环境地质湖北省重点实验室,湖北武汉430034

出　　处：《资源环境与工程》2024年第4期407-413,共7页Resources Environment & Engineering

基　　金：湖北省自然科学基金项目(2024AFD393);湖北省地质局科技项目(KJ2024-11,KJ2024-59);湖北省地质局矿产地质项目(KCDZ2024-01)。

摘　　要：土壤微细粒分离测量方法在中国北方覆盖区的找矿勘查中应用效果良好,但南方覆盖区地理、地质条件与北方地区差异较大,需要开展有效性试验研究。在鄂北浅覆盖区的小玉皇顶金矿区及卸甲沟金矿区开展方法试验,探讨该方法在鄂北浅覆盖区的采样要求,并分析其探测隐伏矿的有效性。研究表明,鄂北浅覆盖区土壤微细粒分离测量方法较为适合的采样层位为BC层,采样粒度为-120目,能够在保证结果科学性的前提下兼顾采样的经济性。卸甲沟金矿区隐伏矿脉上方的土壤微细粒分离测量结果中存在Au-Pb-Bi-W综合异常,与该区原生晕异常组合相似,表明其极有可能是隐伏矿体的地表显示,说明土壤微细粒分离测量方法在鄂北浅覆盖区具有一定的有效性。The fine-grained soil geochemical survey(FSGS)technology has a good application effect in the prospecting in the northern overburden area of China,but the geographical and geological conditions in the southern overburden area are quite different from those in the southern overburden area,so it is urgent to carry out the validity experiments of the FSGS.The method test was carried out in the Xiaoyuhuangding gold mining area and Xiejiagou gold mining area in the shallow overburden area of Hubei Province,the sampling requirements of the method were discussed,and the effectiveness of the method in detecting concealed deposits was analyzed.The research shows that the BC layer is more suitable for FSGS in the shallow overburden area of Hubei Province,and the sampling particle size is-120 mesh,which can take into account the economy of sampling on the premise of ensuring the scientific results.The Au-Pb-Bi-W comprehensive anomaly exists in the measurement results of FSGS above the concealed ore vein in the Xiejiagou gold mining area,which is similar to the primary halo anomaly combination in this area,indicating that it is very likely to be the surface display of the concealed ore body,indicating that FSGS has certain effectiveness in the shallow overburden area of northern Hubei Province.

关 键 词：土壤微细粒分离测量 穿透性地球化学 浅覆盖区 隐伏金矿 鄂北 

分 类 号：P618.51[天文地球—矿床学] P632[天文地球—地质学]