吉林省和龙市古洞河地区铁矿床地质特征

Iron ore deposit geological features of Gudonghe area in Helong City,Jilin Province

古洞河地区铁矿床赋存于太古界夹皮沟群甲山组下段火山硅铁质沉积建造中,产状与地层基本一致,与围岩界线清楚,矿床的形成主要是经受长期的区域热动力变质作用,促使原火山硅铁质沉积建造中的铁质进一步迁移、富集而形成沉积变质型铁矿床。矿石质量较好,属于开采技术条件简单、易选、易加工矿石。总结矿床地质特征,对进一步勘查控制铁矿体规模、增加资源储量、了解矿床水文地质、工程地质、环境地质等开采技术条件和开发等评价工作,具有指导性意义。

Gudonghe iron ore deposit occurs in volcanic ferrosilicon sedimentary formation of Jiashan Formation lower segment of Archaeozoic Erathem Jiapigou Group, the occurrence and formation are basically identical, and the surrounding rock boundaries clear. The formation of ore deposit is mainly through long-term regional thermodynamic metamorphism, prompted the iron, which in original volcanic ferrosilicon sedimentary formation, further migrated, enriched and formed sedimentary metamorphic iron ore deposit.