山东省招远市上庄矿区陈家矿段深部金矿床地质特征

Geological Characteristics of Gold Deposit in Deep Part of Chenjia Section in Shangzhuang Gold Filed in Zhaoyuan City of Shandong Province

摘要:

“焦家式”金矿是胶西北地区重要的矿床类型。陈家矿段位于焦家成矿带的北段，矿化特征表现出与焦家成矿带诸多的相同特征。研究区共有3种赋矿岩性即绢英岩化碎裂岩、绢英岩化碎裂状二长花岗岩、绢英岩化碎裂状花岗闪长岩。在-500～-800m共圈定4个矿体，发现了新的金矿体，实现了深部找矿的目的。

Abstract:

"Jiaojia type" gold deposit (fractural and altered rock type) is an important deposit type in northwest part of Shandong province. Chenjia gold section locates in norh of Jiaojia metallogenic belt. It has the same mineralization characteristics with Jiaojia mineralization belt. There are three kinds of ore-bearing properties in this studying area, they are sericitic alteration cataclasite, phyllic fractural monzonitic granite and phyllic fractural granodiorite. Within the scope of -500 ~-800m, four deposits have been circled, a new ore body has been discovered and gained the purpose of prospecting ores in deep part.