山东省平阴县阎庄铁矿床地质特征及成因分析

Geological Characteristics and the Origin of Yanzhuang Iron Deposit in Pingyin County of Shandong Province

阎庄铁矿位于汶上—东平成矿带北侧,为探讨该矿床成矿标志,通过研究矿床地质特征,分析其成因并总结找矿标志,对区内找矿工作具有借鉴价值。矿体赋存于山草峪组中,其形态受基底背斜控制,呈似层状产出,岩浆岩对矿体的连续性起破坏作用。矿床成因为与新太古代火山活动及区域变质作用有关的沉积变质型铁矿床,泰山岩群变质岩系与磁异常是该类型矿床的找矿标志。

Yanzhuang iron deposit is located in the northern part of the Wenshang Dongping metallogenic belt.In order to explore the mineralization mark of the deposit,by studying the geological characteristics of the deposit,analyzing its genesis and summarizing the prospecting criteria,it is of reference value to the prospecting work in the area.The ore bodies occurred in shancaoyu formation,and their shapes are controlled by the basement anticline and appear as layered.Magmatic rocks destroy the continuity of the ore bodies.The Genesis of the deposit is a sedimentary metamorphic iron deposit related to Neoarchean volcanic activity and regional metamorphism.The metamorphic rock series and magnetic anomaly of Taishan Group are the prospecting indicators of this type of deposit.