摘要
常福龙沟金矿位于内蒙古大青山中段,矿体产于中元古界渣尔泰群浅变质岩系中,金矿体主要受NW向断裂构造蚀变带控制。金矿化围岩蚀变包括硅化、黄铁绢英岩化、绢云母化、钾化、绿泥石化、碳酸盐化等。根据常福龙沟金矿成矿地质特征,矿床成因属构造蚀变岩型。本区具有较大的找矿潜力,在金异常区内的断裂构造及断裂构造中的多种蚀变组合(如黄铁绢英岩化)是金矿形成的重要标志,提出了本区该类型金矿的找矿方向。
The Changfulonggou gold deposit, located in the middle Daqingshan Mountains of Inner Mongolia, occurs in low metamorphic rocks of the Middle Proterozoic Zhaertai Group. The ore bodies are controlled by tectonic - altered zones of NW striking faults. The wallrock alterations of gold mineralization include silicification, pyritization, sericitization, potassic alteration, chloritization and carbonitization. According to the geological characteristics of the Changfulonggou gold deposit, the ore genesis of the deposit is tectonic - altered type. It will be potential to prospect new gold deposits, and it is important that fracture zones and altered rock assemblages in gold anormaly areas could be considered as good indicators for gold prospecting.
出处
《华南地质与矿产》
CAS
2008年第1期17-22,共6页
Geology and Mineral Resources of South China
关键词
常福龙沟金矿
地质特征
找矿方向
内蒙古
Changfulonggou gold deposit
geological characteristics
prospecting
Inner Mongolia
