吉林延边杜荒岭金矿床成矿流体地球化学特征

来源期刊：黄金2010年第11期

论文作者：殷茜 卿敏 朴星海 边红业 程军 张景海 万多

文章页码：16 - 19

关键词：杜荒岭金矿床； 地质特征； 流体包裹体； 地球化学

Key words：Duhuangling gold deposit； geological characteristic； fluid inclusion； geochemistry

摘    要：杜荒岭金矿床产出于石英闪长岩中,矿化类型分爆破角砾岩筒型及放射状裂控蚀变岩型。流体包裹体研究表明,两类矿石石英中主要发育含NaCl子矿物三相、气相—富气相及气液二相等3种类型的原生流体包裹体。测温结果显示,包裹体均一温度总体为256.8～450℃,盐度S(NaCl)为31.9%～44.2%,反映了成矿流体为一类中高温、高盐度不均一的热液体系,具明显的浅成岩浆来源特征。

Abstract: Duhuangling gold deposit is another gold deposit that possesses great exploration promise that discov- ered in Yanbian area,Jilin province in recent years. It occurred in quartz diorite and the mineralization can be classified into explosive breccia pipe type and radiated fault-controlled altered rock type. Fluid inclusion study showed that quartz from the two type ores contained NaCl daughter mineral-bearing three-phase,gaseous or gas-dominated phase and gas-aqueous two-phase primary fluid inclusions. Micro-thermometric study showed that their homogenization temperature ranged between 256.8-450 ℃ and the salinities ranged between 31.9 %-44.2 % . It was revealed that the ore-forming fluid was of a medium to high temperature,high salinity unhomogeneous solution,which mainly came from shallow magmatic intrusions.