Multi-source Information Analysis And Target Area Delineation In Qionglaketeleke Mo Mining Area

Qionglaketelke molybdenum mine district is located in the northeast of Wuqia County,Xinjiang,in the active zone of the northern edge of the Southwest Tianshan Mountain.In the study area,large height difference,strong terrain cutting,most areas need to be climbed on foot or with the help of livestock,it brings a lot of difficulties for systematic prospecting.Combined with the molybdenum element anomaly and the discovered molybdenum ore body in the past geological work,the evidence of the existence of molybdenum ore in the study area is determined.This study analyzes the multi-source prospecting information of geology,geochemical exploration and geophysical exploration,and selects,analyzes and synthesizes the data,determine the deposit type,compare the typical deposit mode and establish the prospecting model,using the method of evidence weight to delineate the metallogenic target area and guide the systematic prospecting work on the ground,so as to reduce the cost of human resources and improve the efficiency of prospecting.According to the characteristics of the discovered ore bodies,it is preliminarily determined that the molybdenum deposit in the study area is a hydrothermal vein type quartz vein type molybdenum deposit.The corresponding typical deposit is the pingpingchuan type deposit.Through the comprehensive analysis of geological,geochemical and geophysical information,the ore controlling factors are determined,and the metallogenic prediction variables needed for the metallogenic prediction model are determined.Based on the D-S evidence theory,The subjective weight and objective weight are combined to get the comprehensive weight,and the comprehensive weight is substituted into the evidence weight model,and the evidence weight model is improved by the information method.The metallogenic prediction variables are processed and the target areas are delineated.Basic principles of reference metallogenic prediction theory,combined with the existing data in the study area,we use 1/5W data to delineate the metallogenic prospective area.In the metallogenic prospective area,we use 1/1W data to further narrow the scope,delineate the metallogenic target area,and finally delineate two metallogenic target areas,the target area is 2.1 km~2.The two tribes of molybdenum ore bodies have been found in the?target area,and the side reflects the possibility of orebodies in?target area.Verification of surface engineering for delineated target area,three molybdenum ore bodies and two molybdenum mineralization zones have been identified,and the accuracy of the prediction results has been proved.The next step is to continue to complete the large scale geological mapping of?target area,and obtain more surface mineralization information to improve and verify the model.