甘肃李坝金矿床定位预测的叠加晕模式

The model of superimposed halos for blind ore locating prediction in Liba gold deposit, Gansu

李坝金矿具有多期多阶段叠加成矿成晕的特点 ,根据不同成矿阶段元素组合和单阶段形成原生晕的垂直分带规律 (从上→下是 As、Hg、Sb→Ag、Pb、Au、Cu、Zn→ Bi、Mn)及不同成矿阶段形成矿体 (晕 )在空间上的叠加特点 ,建立了矿床的原生叠加晕模式 ,确定了盲矿定位预测标志。

Liba gold deposit has features of superimposed mineralization and halo of multiphase and multistage. According to the element association at different metallogenetic stages, vertical zoning regularity of primary halos by single stages processes (from top to bottom: As,Hg,Sb→Ag,Pb,Au,Cu,Zn→Bi,Mn) and the spacial superimposed features of orebody (halos) in different mineralizing, the model of primary superimposed halo in the deposit has been established and the mark for blind ores locating prediction has been defind.