Sedimentary Structure In Northwest Huayuan Lead-zinc Deposit In Hunan Metallogenic Mechanism And Metallogenic Prediction

Huayuan Mine Area which in the Northwestern of Hunan development large lead-zinc with potential lead and zinc resources amounted to 30 million tons,it has been included in the first batch of national integrated exploration area.Previous studies have carried out systematic research on the geological features of the ore deposits in this area,but there are different understanding and weak research work in the aspects of metallogenic structure and hydrothermal fluid mine ralization.selecting “in North Western Hunan Huayuan Pb Zn ore field,the sedimentary tectonic control ore mechanism and metallogenic prospect forecast as the title of dissertation,the referential value for gold prospecting and important geological scientific research significanceThis paper is based on the “Study on the thrust fault zone controlled by ore controlling regularity of lead-zinc deposit in Huayuan region inverse”,the field geological survey in the 100 days,and comprehensive analysis of the indoor data.The main achievements are obtained in the study of the metallogenic structure,metallogenic regularity and prediction of the Huayuan Pb Zn deposit:1.Tongren-Yuping-Baojing fault zone(Ma Li Chang fault zone)is the main structure of this area;The favorable ore forming facies belt,the structural belt and the lead zinc ore belt is one of the main features of the deposit.North East Huayuan-Zhangjiajie fault-Zn ore field control effect is most obvious,adjacent to the fault location,generated by the large number of lead-zinc ore bodies,and large scale.2.The formation and distribution of the ore deposits are closely related to the sedimentary facies.Control of ore bearing horizon,large porosity,permeability good lithologic section layer overlying porosity,permeability difference of lithology layer configuration into a good “reservoir,caprock” lithology combination,this is one of the important ore controlling conditions for the formation and enrichment of Pb Zn deposits.of geology.3.Lead zinc ore prediction and forecast for prospecting in,various research exploration information of mine ralization information,relationship model of multi-source information and mineral resource potential,total resources in the prospect area were predicted for the future development of geological prospecting work has provided the theoretical basis.