摘要
冀东地区金矿床大多产于太古界迁西群金厂峪组斜长角闪岩中.具有明显的层控特征.金厂峪组斜长角闪岩原岩为一套海底基性喷出岩.通过金厂峪组斜长角闪岩的岩石地球化学特征、岩石含金性、载金矿物及微量元素特征和金的溶滤实验、同位素数据资料的分析,结合野外宏观地质特征.阐明金厂峪组斜长角闪岩是冀东地区金矿的矿源层.
Most of the gold deposits in the eastern Hebei province occur in plagioclase hornblendites in Jinchangyu Formation of Qianxi Group in Archean with a distinctive stratabound characteristies. The primitive rocks of Jinchangyu Formation plagioclase hornblendites was a sequance of submarine basic effusive rosks. It has been made clear that Jinchangyu formation plagioclase hornblendites is the source-bed for gold deposits in the eastern Hebei province on the basis of the analysis of rock geochemical characteristics ,gold abundance in the rock-s,the characteristics of gold host minerals and trace elements.the experiment result of lixiviation and isotope data in combination with the field geologic evidences.
出处
《矿产与地质》
1991年第6期430-436,共7页
Mineral Resources and Geology
关键词
金矿
矿源层
变质岩
矿床
太古界
Eastern Hebei,Gold deposit ,Source-bed ,High grade metamorphic rock,Archean
