Mineral resource potential evaluation based on multi-purpose geochemical survey:A case study of the Dabie Mountains in Eastern Hubei Province
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 da-ta 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 charac-teristics of existing deposits,the metallogenic prediction area was initially proposed.The results showed that:① Compared with the soil background value of Hubei Province,Ba,Cl,Sr,CaO and Na2O 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,SiO2,Al2O3,TFe2O3,MgO,K2O 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.(2)41 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 anom-alies related to U,Th,Nb,Ce and La,and 10 combination anomalies related to W,Mo,Bi,Sn and Pb.(3)10 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-molyb-denum metallogenic prediction area,Huajiahe gold-silver-lead-iron-nickel barite fluorite metallogenic prediction area,Xiadi-an 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 metallogenic prediction area,Zhangbang gold-silver-iron-copper-molybde-num-phosphorus metallogenic prediction area.The research results can provide some reference for the deployment of the next prospecting work in the Dabieshan area of eastern Hubei.
mineral resources potential evaluationsurface soilgeochemical anomalymulti-purpose geochemical surveyDabie Mountains
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