Study On Metallogenic Regularity And Prospecting Potential Evaluation Of Copper Multi-metal Deposits In Henmaiwenduer,Dongwuqi,Inner Mongolia

Dongwuzhumuqinqi area of Inner Mongolia is the important copper and multiple metallogenic province in the metallogenic belt of the area from Suolun mountain to Dongwuqi,This area has been found many Fe-Cu-W-Pb-Zn polymentallic deposit from middle to large scale.In recent years,a batch of important ore occurrences,geophysical,geochemical and remote sensing abnormal area,which showed that the prospecting potential,had been found in Henmaiwenduer area of Dongwuqi.This dissertation is based on the comprehensive research project "The reach of looking for direction of copper deposit in metallogenic belt from Erlian to Dongwuqi" and the strategic mineral vision survey project "The mineral vision survey in the area of Henmaiwenduer,Dongwuqi,Inner Mongolia" the two of which did by China Geological Survey Bureau.Through the work of the regional geological mapping,the interpretation of remote sensing,exception checking,geophysical and geochemical survey and the exposure of drilling and trenching in important area,and combine the comparative analysis between the known deposits in adjacent areas,getting the following achievement:We summarized the regional metallogenic regularity and had known the temporal-spatial evolution characteristics of copper polymetallic deposits and ore occurrences in this area.The metallogenic of copper polymetallic ores has relationship with the tectonic-magmatic activity in Late Variscan to Yanshanian.Established the regional prospecting,the prospecting criteria and the direction in this area.According to the regional metallogenic regularity and combining the comparative analysis between the known deposits in adjacent areas,we divided three metallognic belt.The first is hydrothermal silver polymetallic metalloginic belt in Yanshanian from Henmaiwenduer to Taerbagetu and Guerban.The second is Mo-Pb-Zn-Ag polymetallic metalloginic belt to the north of the Zhuerhenaolao rock in Late Variscan.The third is hydrothermal silver polymetallic metalloginic belt in Yanshanian from Chaganchulu to AobaotehaolaiAccording to the work of geology,geophysical and geochemical prospecting,remote sensing,drilling and trenching,we found nine ore occurrences of Wuerte and Beigeqi.We also did preliminary evaluation about the mineral resource potential in these areas and divided six prospecting areas and sixteen prospecting targets(grade A for eight,grade B for five and grade C for three)In a word,the mineralization of copper polymetallic deposits in Henmaiwenduer,Dongwuqi,Inner Mongolia were affected by the structure which directed to NE and had relationship with the tectonic-magmatic activity in Late Variscan to Yanshanian.We summarized the regional ore formation rule,so we think the conditions for prospecting and potential are better.According to the further work of geology,we achieved great breakthrough in prospecting and let the mining industry make important contribution to economic development in this area.