吉林省头道溜河二道高丽沟区Ⅱ号矿化角砾岩地质特征及找矿标志

Geological features and prospecting criteria of No.Ⅱ mineralized breccia of Toudaoliuhe Erdaogaoligou region,Jilin Province

工作区位于华北地台北缘东段,会全栈古穹隆构造南东缘,其成矿域位于辉南—桦甸—和龙金银成矿带中段,属太古宙高级变质区。本文从Ⅱ号矿化角砾岩地质背景入手,详细论述了Ⅱ号矿化角砾岩带及带内矿体的规模、形态、金品位变化、矿石结构构造、共生组合和矿物生成顺序等特征,并阐述了该区的找矿标志。

The work area is located in the north margin of east part of North China platform,southeast margin of Huiquanzhan palaeo-domal structure,the metallogenic domain is located in the middle part of Huinan-HuadianHelong gold-silver metallogenic belt,belonging to the Archean high-grade metamorphic region.Based on the geological background of No.Ⅱ mineralized breccia,discussed in detail the No.Ⅱmineralized breccia belt and orebody features such as scale,shape,grade changes,texture and structure of ores,paragenetic association and mineral generation sequence,and elaborated the prospecting criteria.