The Direction Of Research And Exploration Of The Yanjingou Gold Deposit In Dulan,Qinghai

For the Yanjingou gold deposit of Wulonggou ore field in East Kunlun,based on the existing exploration results of the deposit,to study metallogenic geological factors.Based on elemental geochemical behavior,using existing exploration results and rock geochemical data,judged for gold instructions by the different elements,and then determine the predictive factors,delineation of target areas for prospecting,point out the definite exploration direction.Come to the following understanding:The metallogenic geological factors are the hydrothermal fluids related to mineralization are mainly multi-period granite-diorite magmatic hydrothermal fluids in after Indosinian and NW to brittle fracture zone,but the rock' lithology for gold metallogenic is non selective,it can not be used as a mineralization factor.Judged that F-Cl-B is the leading halo,Ag-As-Sb is the middle-front halo,Cu-Pb-Zn is the middle posterior halo,W-Sn-Mo-Bi is the tail halo,S-Se-Te appears a wide range,and appear to the front to the tail.Through carried out geochemical primary halo measurement,extract leading halo,middle-front halo,middle posterior halo,tail halo,simple anion anomaly and the main ore-forming element(Au),was significantly enriched in the mineralized zone,anomaly area and ore body position overlap,indicating orebody is more accurate,can be used as an effective method for ore prospecting factors.Based on NW-trending brittle fracture is widespread and regularly distributed,and abnormal display of hydrothermal solution in underground engineers,therefore,the prediction factors for NW-trending brittle fracture + leading halo anomaly + middle-front halo anomaly + middle posterior halo anomaly + tail halo anomaly + simple anion anomaly + main ore-forming element(Au)anomaly are constructed,a total of 18 target areas have been delineated,including 5 class ? target areas,6 class? target areas and 7 class ? target areas in Yanjingou gold deposit.