山东省羊山地区铁矿床地质特征及成矿规律探讨

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研究区大地构造位置处于华北陆块(Ⅰ)鲁西隆起(Ⅱ)鲁西南潜隆起区(Ⅲ)菏泽-兖州潜断隆(Ⅳ)之嘉祥凸起(Ⅴ)的西南部,紧临金乡凹陷(Ⅴ)。铁矿床类型属"鞍山式"沉积变质铁矿床,矿石类型为条纹-条带状铁矿石;含矿层位为泰山岩群山草峪组,其沉积建造主要为含铁砂质建造;矿床赋存于山草峪组中下部层位,具层控特性。铁质建造为铁质矿物的主要来源,经海水搬运迁移,铁质初步富集;在铁矿体形成过程中,经历了三期变质作用,使铁质逐步活化富集,形成层状、似层状含铁变质岩组合。
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