冀东峪耳崖金矿成矿地质环境及形成机制

Metallogenic Geological Environment and Forming Mechanism of Yu'erya Gold Deposit in Eastern Hebei Province

冀东地区金矿集区是中国金矿主产地之一,文章以冀东地区峪耳崖金矿为例,探讨了陆壳深断裂岩浆活动下的峪耳崖金矿成岩成矿和形成机制,对峪耳崖金矿成矿地质背景、矿床特征、时空分布规律等进行了总结,综合前人的研究成果,峪耳崖金矿赋存于中元古界长城系高于庄组陆海相沉积地层,成矿岩体为中生代燕山期花岗岩。并与区域上金成矿条件进行对比分析,简述了成矿地层与岩体的关系,梳理了金矿床控矿因素、形成机制等问题,为今后进一步找矿勘查提供基础理论支撑。

Yu'erya gold deposit,the gold collection area,which is located in Eastern Hebei province is one of the main gold producing areas in China.Taking Yu'erya gold deposit,which is located in Eastern Hebei province as an example,the paper discusses the diagenetic mineralization and forming mechanism of the Yu'erya gold deposit under the magma activity of the deep continental crust fault,summarizes the metallogenic geological background,mineral deposit characteristics,spatio-temporal distribution of the Yu'erya gold deposit.The Yu'erya gold deposit is located in continental and marine sedimentary strata of Changcheng Gaoyuzhuang Formation in Middle Proterozoic,and the ore-forming rock mass is Yanshanian granite in Mesozoic.The relationship between ore-forming strata and rock mass is described,and the ore-controlling factors and formation mechanism of gold deposits are sorted out,which provides basic theoretical support for further prospecting and exploration.