摘要
台吉营子金矿成矿类型主要为构造破碎蚀变岩型,并具有石英脉型矿床特点,构造对其成因及产出有严格的控制作用。从微观角度分析矿体和围岩中出现的显微构造现象,并结合区域构造背景和矿石类型分析矿床成因及推测其演化过程。经观察研究发现台吉营子金矿区存在的主要显微构造有:显微破裂、晶质塑性变形、断层等显微构造现象。分析表明该矿区矿石多形成于中-浅部构造层次,以脆-韧性变形为主,并存在多于3期的矿石复合叠加作用。
The microstructures of gold mine in Taijiyingzi ofBeipiao Liaoning are the main objects in this paper by observing the slices which could reflect the microstructures in the area and be used to conjecture the process of the gold mine. The conclusions are ： （1）There had been three times tectonic activities at least which are integrate with the tectonic periods; （2）The micro structural kinematics show that the changes of the faults activities are the reasons of inconsistent between shear directions; （3）The stress is about 60MPa calculating by dynamic recrystallization which reflects the middle-lowest tectonics level.
出处
《化工矿产地质》
CAS
2014年第2期65-72,共8页
Geology of Chemical Minerals
关键词
显微构造
古应力
构造期次
矿床演化过程
Mierostructure
Paleotectonic stress
Tectonic period
The process of mineralization
The gold mine of Taijiyingzi
