吉东杜荒岭金矿区围岩蚀变与金矿化关系

杜荒岭金矿赋存于燕山晚期的石英闪长（斑）岩中，严格受近EW向断裂构造带控制。主要蚀变类型有硅化、绢云母化、绿泥石化、黄铁矿化、褐铁矿化、高岭土化和碳酸盐化等。具较明显的蚀变分带，自中心向外可分为黄铁绢英岩、石英娟母云母和青磐岩带。蚀变演化可划分为早成矿期、中成矿期和晚成矿期蚀变。金矿化与蚀变关系密切，尤其与硅化、黄铁矿化和绢英岩化最为密切，为典型的破碎蚀变岩型金矿。

Discussion on relationship of the wall rock alteration and the mineralization of gold deposit in the Duhuangling gold area,eastern Jilin

Duhuangling gold deposits occurred in the quartz diorite(porphyry)of Late Yanshan Epoch,the deposits are directiy controlled by EW trending fault structure zone.The main types of the wall rock alteration include quartzitification,sericitization,chloritization,pyritization,limonitization,kaolinitization,carbonatization. The alteration zonation was very obvious, the alteration has been divided into pyritization sericitization quartzitification zone,quartz sericitization zone and propylitization zone from center to the outside. Evolution of the alteration may be divided into three stages, namely, early mineralizing alteration,middle mineralizing alteration and late mineralizing alteration.The gold mineralization is closely related to the alteration, especialy to the quartzitification, pyritization and sericitization quartzitification. This is a typical fractured alteration type gold deposits.