吉林省南部老岭地区金矿床成矿地质条件分析及成矿预测

Analysis of geological conditions of metallization of the gold deposits in Lao Ling Region of the south part of Jilin Province and its metallogenic prognosis

通过对老岭地区金矿床成矿地质条件分析，提出韧性剪切带控制金矿床，韧性剪切带内后期叠加的脆性断裂控制金矿体分布，印支期Ⅰ型花岗岩为成矿热液的形成和流动循环提供热能，珍珠门组上段厚层块状、角砾状、压碎状白云石大理岩提供成矿物质来源。据此提出珍珠门组与花山组接触带是该区具极好找矿前景的金矿带。

According to the analysis of geological conditions of metallization of the gold deposits in Lao Ling Region,this paper advances a few view points that these deposits are controlled by tenacious shear zone,the distribution of gold orebodies are controlled by brittle fault which is superimposed in later epoch in the tenacious shear zone,the heat energy for the formation and cyclic flowing of metallizing hydrothermal solution is supplied by I type granite of Indo Chinese epoch and the metallizing materials are supplied by dolomite marbles which are located in the upper part of Zhen Zhu Men Section and present in the forms of lump,breccia and crushed rock.Accordingly,the contact zone between Zhen Zhu Men section and Hua Shan section is the best zone of gold prospecting.