Geological Features and Prospecting Direction of Duhuangling Gold Deposit,Jilin

Duhuangling gold deposit occurred in the quartz diorite of Late Yanshan Epoch.The ore-bodies are directly controlled by EW-trending fault structure zone.The main types of the wall-rock alteration include quartzitification,sericitization,chloritization,pyritization,limonitization,kaolinitization,carbonatization.Evolution of the alteration may been divided into tree atages,namely,early-mineralizing alteration,middle-mineralizing alteration and late-mineralizing alteration.The gold mineralization is closely reated to the alteration,especially to the quartaitification,pyritization and sericitizationquartzitification.This is a typical fractured alteration type gold deposits.This is a meso-epithermal alteration type gold deposit which related with subvolcanic rock of Late Yanshan Epoch,Based on the prospecting criteria in the area.