Classification Of Metallogenic Indicator Elements And Significance Of Deep Prediction In Hatu Gold Belt,Xinjiang

Hatu is located in the western Junggar gold metallogenic belt in Xinjiang,and is an early mining mine in Xinjiang.As the work of shallow deposits is nearing the end,to extend the life of mines,it is necessary to increase the exploration and mining scope of deep and surrounding mines.At present,the mining work of Hatu Gold Mine is limited to surface and shallow drilling and mining because of the influence of technology and environment.In order to further search for large blind orebodies or rich ores,it is necessary to summarize the metallogenic characteristics of orebodies,metallogenic regularity and study the influence of metallogenic environment on them,extend mining work to the exploration of surrounding and deeper orebodies,so as to achieve the purpose of extending the life of mines.The primary halo prospecting method is a geochemical method which uses the geochemical dispersed halos in the rocks around ore bodies or other geological bodies for prospecting.From 1950 s to now,it has become one of the most important geochemical prospecting methods,especially in prospecting for concealed deposits.Based on the analysis of borehole data of Qi I,Qi II and Qi III in the metallogenic area of Hatu Gold Mine,the zoning sequence of indicative elements in the three mining areas is calculated by zoning index method,and the differences and similarities of the zoning sequences in the three ore areas are compared.Combined with factor analysis results,it is determined that the metallogenic environment of Hatu gold deposit is a magmatic hydrothermal medium-low temperature gold deposit with multi-material sources.Based on the correlation results of the three mining areas and the results of the primary halo axial zoning above,the influence of superimposed structure is eliminated,and the indicator elements of the front halo of Hatu gold deposit are determined to be Hg,As,Sb;the near ore elements are Ag,Cu,Zn,Pb,Bi;and the tail halo elements are W,Ni and Mo.By comparing and analyzing the metallogenic locations of the three mining areas by chemical parameter mapping,and combining the abnormal phenomena of zoning sequence and accumulation ratio discussed above,it is inferred that there may beconcealed ore bodies in the deep part of Hatu gold deposit.The prediction results provide a theoretical basis for practical research,and provide a research direction for further research of Hatu gold deposit.