CAJ | 학술논문

提峪耳崖金矿床是冀东地区重要的金矿之一，位于华北板块燕山造山带东段，马兰峪复背斜北翼。金矿体赋存于峪耳崖花岗岩及其与灰质白云岩接触带中，矿化类型包括石英脉型和细脉浸染型，属中温热液型矿床。本次工作采用Re-Os同位素测年技术，对该矿床主成矿阶段的7件辉钼矿样品进行了精确定年，获得模式年龄为(168.4±2.5) Ma~(171.7±3.0) Ma，加权平均年龄为(169.84±0.95) Ma，等时线年龄为(171.9±2.7) Ma，表明矿床形成于中侏罗世，与成矿花岗岩侵位时间基本一致。辉钼矿的铼含量为50.63×10-6~116.1×10-6，平均84.61×10-6，指示成矿物质可能为壳幔混合来源。结合前人研究成果资料分析，峪耳崖金矿是冀东地区燕山早期区域性强烈构造-岩浆-成矿作用的产物。
제욕이애금광상시기동지구중요적금광지일，위우화북판괴연산조산대동단，마란욕복배사북익。금광체부존우욕이애화강암급기여회질백운암접촉대중，광화류형포괄석영맥형화세맥침염형，속중온열액형광상。본차공작채용Re-Os동위소측년기술，대해광상주성광계단적7건휘목광양품진행료정학정년，획득모식년령위(168.4±2.5) Ma~(171.7±3.0) Ma，가권평균년령위(169.84±0.95) Ma，등시선년령위(171.9±2.7) Ma，표명광상형성우중주라세，여성광화강암침위시간기본일치。휘목광적래함량위50.63×10-6~116.1×10-6，평균84.61×10-6，지시성광물질가능위각만혼합래원。결합전인연구성과자료분석，욕이애금광시기동지구연산조기구역성강렬구조-암장-성광작용적산물。
The Yuerya Au deposit, one of the important Au deposits in eastern Hebei Province, is located in the northern limb of the Malanyu anticlinorium on the eastern side of the Yanshan orogenic belt. The gold orebodies, which belong to mesothermal hydrothermal type, are mainly hosted in the granite and its contact zone with the limy dolomite, and the ores include quartz vein type and veinlet-disseminated type. The Re-Os isotopic dating of 7 molybdenum samples of the main ore-forming stage yielded model ages ranging from (168.4±2.5) to (171.7±3.0) Ma, with the average model age being (169.84±0.95) Ma and the isochron age being (171.9 ± 2.7) Ma, indicating that the mineralization of the Yuerya Au deposit took place in the Middle Jurassic, corresponding to the intruding epoch of the Yuerya granite. The content of Re, 50.63 × 10-6-116.1 × 10 -6 with an average of 84.61 × 10-6, shows that its material was mainly derived from crust-mantle mixture. In combination with the previous research results, the authors hold that the Yuerya Au deposit resulted from the strong tectono-magmatic-mineralization activities during early Yanshanian period of Mesozoic in eastern Hebei Province.