The Features Structural Superimposed Halos of Bairiqili Gold Deposit in Qinghai and Its Deep Prediction

The Bairiqili gold deposit is controlled by fault fracture zone.The study results of geochemical characteristicsand structural superimposed halo feature for typical gold deposits in the area indicate that the ore deposit is characterized with geochemical combination of Au,As,Sb,Hg, B,Ag,Cu,Pb,Zn, Bi,Mo,Co,Ni,V,Ti, W,Sn.By systematical analysis of axial zoning regularity ofgolddeposit，it shows that indicator elements for forward primary halos are As,Sb,Hg,B,indicator elements for gold orebody for Au,Ag,Cu,Pb,Zn,and tail halo indicator elements areBi,Mo,Co,Ni,V,Ti,W,Sn.On the basis ofsummarizing predication criteria of structural superimposed halo，structural superimposed halo model for prediction of blind orebody inthe depth was established，which will help to delineate the deep prospecting targets.