山东淄博A层粘土矿成矿地质特征及成矿规律

Geological Characteristics and Metallogenic Regularity of Clay Ore of Layer A in Zibo City of Shandong Province

山东省淄博A层硬质粘土矿主要赋存于中二叠统石盒子组,不仅蕴藏量多,而且顶板有相当数量的A层鲕粒状含铁铝土矿,勘查开发潜力大,前景广阔,通过对该区硬质粘土矿含矿岩系特征、矿体特征等分析研究及矿床成因分析,最终提出找矿标志:即主要为中二叠统石盒子组含矿岩系,一般在顶板为长石石英砂岩为鲕粒状结构A层铝土矿,在A层铝土矿的下面就是青灰色A层硬质粘土矿,底板一般为紫红色砂质页岩或者是长石石英砂岩。

Hard clay deposits of layer A in Zibo city of Shandong province, mainly occur in Permian Shihezi formation, not only contain amount of resources, but also contain a considerable number of oolite granular iron bauxite, has good potential prospects of exploration and development. In this paper, the deposit genesis and ore body characteristics were analyzed, finally prospecting criteria were put forward： it＇s mainly Permian Shihezi formation of ore bearing rock series, generally in the roof feldspar quartz sandstone as oolite granular structure of bed A bauxite, blue grey A layer of hard clay is below the A layer bauxite, the base is usually purplish red sandy shale or is feldspar quartz sandstone.