Comprehensive Prospecting Information Extraction And Prospecting Direction Of The Halariver Pb Multi–Metal Deposit In Da Hinggan Mountains

The HalaRiver deposit area is located in the Yiqihan Forest Farm in Zhalantun City,Hulunbeier City,Inner Mongolia.It has been tentatively designated as a small-mediumsized silver-copper-lead-zinc polymetallic deposit through the geological work by the the Nuclear Industry Group 208 Brigade.The study area is located in the middle of the Mesozoic volcanic rock area of the Da Hinggan Mountains.The Mesozoic volcanic rock strata and the third intrusive granite porphyry in the third stage of Yanshan exposed in the mining area.Then grow the No.F13 fault in the northeast direction and the No.F1 fault in the northwest direction.The halariver Pb Multz-Metal deposit totally delineation 17 ore bodies,including 5 major ore bodies.The ore body controlled length is 400 to 1200 m,the controlled oblique depth is 14.00 to 279.70 m,and the thickness is 1.01 to 1.80 m.The ore body trend to 18°and 56°,and the form is enticular and vein-like.It is a silver-copper-lead-zinc ore body,and the ore-bearing lithology is the plagiogranite porphyry and the Broken Andesite.The medium-low temperature alteration of deposits such as pyrite mineralization,silicification,chlorite,epidote,sericitization and carbonation is generally developed.Based on the research work of the predecessors,combined with the field work summary and the results of the census work,the research carried out a comprehensive study on the regional geological background of the HalaRiver Pb Multi–Metal mine,the geological background of the mining area and the geological characteristics of the deposit.The research indicates that the deposit exists in the inner and outer contact zone of the upper plate of the plagiogranite porphyry,which is obviously controlled by No F13 fault,and also the fault as its ore-conducting and ore-bearing structure.The ore body has a series of medium-low temperature hydrothermal mineralization.It is believed that the HalaRiver Pb Multi–Metal deposit is formed into a medium-low temperature hydrothermal vein type silver-copper-lead-zinc deposit.Based on this,the geological information,geophysical information,and geochemical information of the study area are extracted.Analyze and study the correlation between comprehensive prospecting information and mineralization of deposits.Based on this,we will discuss the prospecting direction and guide the next prospecting work.