基于多目标区域地球化学调查的矿产资源潜力评价——以鄂东大别山地区为例  

Mineral resource potential evaluation based on multi-purpose geochemical survey:A case study of the Dabie Mountains in Eastern Hubei Province

作　　者：郑雄伟 李成香 向武[3] 孙腾 孙为国 魏凌霄 吴颖 徐元璋 白洋 胡青 刘磊 全浩理 张元培 罗军强 司可夫 赵辞 Zheng Xiongwei;Li Chengxiang;Xiang Wu;Sun Teng;Sun Weiguo;Wei Lingxiao;Wu Ying;Xu Yuanzhang;Bai Yang;Hu Qing;Liu Lei;Quan Haoli;Zhang Yuanpei;Luo Junqiang;Si Kefu;Zhao Ci(Hubei Key Laboratory of Resources and Eco-environment Geology,Wuhan,Hubei 430034;Geophysical Exploration Brigade,Hubei Geological Bureau,Wuhan,Hubei 430056;School of Earth Sciences,China University of Geosciences,Wuhan,Hubei 430074;Hubei Geological Survey,Wuhan,Hubei 430034)

机构地区：[1]资源与生态环境地质湖北省重点实验室,湖北武汉430034 [2]湖北省地质局地球物理勘探大队,湖北武汉430056 [3]中国地质大学(武汉)地球科学学院,湖北武汉430074 [4]湖北省地质调查院,湖北武汉430034

出　　处：《资源环境与工程》2024年第5期544-556,共13页Resources Environment & Engineering

基　　金：湖北省省级财政科研项目“鄂东大别山地区多目标区域地球化学调查”(MSDZ202303)。

摘　　要：区域地球化学勘探在地质找矿中具有显著的应用效果,可以充分利用多目标区域地球化学调查数据进行找矿预测。基于鄂东大别山地区多目标区域地球化学调查数据,系统分析表层土壤中54项指标的背景、分布及组合特征,然后重点圈定与矿产有关的多元素组合异常,并结合各组合异常区的地质背景及已有矿床特征,初步提出成矿预测区。结果表明,①与湖北省土壤背景值相比,研究区表层土壤中Ba、Cl、Sr、CaO、Na_(2)O等5项指标表现为强富集,La、P表现为富集,Be、Ce、F、Ga、Ge、Mn、Nb、Pb、Sc、Th、Ti、V、Y、Zn、Zr、SiO_(2)、Al_(2)O_(3)、TFe_(2)O_(3)、MgO、K_(2)O、pH等21项指标与之相当,Ag、Bi、Br、Cd、Co、Cr、Cu、I、Mo、N、Ni、Rb、S、Se、Sn、Tl、U、Corg、TC等19项指标表现为贫乏,Au、As、B、Hg、Li、Sb、W等7项指标表现为极贫乏;②圈定多元素组合异常41处,其中与Au、Ag、As、Sb、Hg有关的组合异常13处,与Fe、Co、Ni、V、Ti有关的组合异常10处,与U、Th、Nb、Ce、La有关的组合异常8处,与W、Mo、Bi、Sn、Pb有关的组合异常10处;③初步提出10个成矿预测区,分别为宣化金银钨钼铅锌成矿预测区、新城金银铁重稀土成矿预测区、七里坪金银铜钼成矿预测区、华家河金银铅铁镍重晶石萤石成矿预测区、夏店钨钼铀成矿预测区、三河口银铁镍成矿预测区、三里畈金银铜铅重稀土成矿预测区、杨柳湾铜钼成矿预测区、南河铁铜钼成矿预测区、张榜金银铁铜钼磷成矿预测区。研究成果可以为鄂东大别山地区开展下步找矿工作部署提供一定的参考。Regional geochemical exploration has significant application effect in geological prospecting,we should make full use of multi-purpose geochemical survey data for prospecting prediction.Based on the multi-purpose geochemical survey data in the Dabie Mountains in eastern Hubei Province,the background,distribution and combination characteristics of 54 indicators in the surface soil were systematically analyzed,and then the multi-element combination anomalies related to minerals were delineated.Then,combined with the geological background of each combination anomaly area and the characteristics of existing deposits,the metallogenic prediction area was initially proposed.The results showed that:①Compared with the soil background value of Hubei Province,Ba,Cl,Sr,CaO and Na_(2)O in the surface soil of the study area are strongly enriched,La and P are enriched,Be,Ce,F,Ga,Ge,Mn,Nb,Pb,Sc,Th,Ti,V,Y,Zn,Zr,SiO_(2),Al_(2)O_(3),TFe_(2)O_(3),MgO,K_(2)O and pH are equivalent,Ag,Bi,Br,Cd,Co,Cr,Cu,I,Mo,N,Ni,Rb,S,Se,Sn,Tl,U,Corg and TC are poor,and Au,As,B,Hg,Li,Sb and W are extremely poor.②41 multi-element combination anomalies are delineated,including 13 combination anomalies related to Au,Ag,As,Sb and Hg,10 combination anomalies related to Fe,Co,Ni,V and Ti,8 combination anomalies related to U,Th,Nb,Ce and La,and 10 combination anomalies related to W,Mo,Bi,Sn and Pb.③10 metallogenic prediction areas are preliminarily proposed,which are Xuanhua gold-silver-tungsten-molybdenum-lead-zinc metallogenic prediction area,Xincheng gold-silver-iron-heavy rare earth metallogenic prediction area,Qiliping gold-silver-copper-molybdenum metallogenic prediction area,Huajiahe gold-silver-lead-iron-nickel barite fluorite metallogenic prediction area,Xiadian tungsten-molybdenum-uranium metallogenic prediction area,Sanhekou silver-iron-nickel metallogenic prediction area,Sanlifan gold-silver-copper-lead heavy rare earth metallogenic prediction area,Yangliuwan copper-molybdenum metallogenic prediction area,Nanhe iron-copper-molybdenum metallog

关 键 词：矿产资源潜力评价 表层土壤 地球化学异常 多目标区域地球化学调查 大别山地区 

分 类 号：P632.1[天文地球—地质矿产勘探]