摘要
山东淄博盆地A层硬质黏土—铝土矿主要赋存于二叠纪石盒子群万山组底部的A层含矿岩系中,矿体呈似层状和透镜状产出,A层硬质黏土在该区分布较广,而共生铝土矿矿体主要分布在东宝山—东冲山一带;两矿体的形态、结构、构造比较简单。两矿体垂向分布呈渐变关系,受沉积环境影响呈现不同的颜色和结构,肉眼可大致区分矿体与围岩,具体界线要靠化学分析结果予以区分;矿体厚度均匀,总体与Al2O3,SiO2含量呈正相关,与Fe2O3呈反相关;矿石中Al2O3,Fe2O3,SiO2的总含量一般在83.5%~85.5%,品位比较均匀,同时三者含量在不同矿石中有着相互消长的关系。
Hard clay and its symbiotic bauxite deposit in A layer in zibo city in Shandong province mainly occur in the orebearing rock system of the"A"layer at the bottom of Wanshan formation in Permian shibozi group.The ore bodies occur as stratoid and lenticular shape respectively.Hard clay in A layer is widely distributed in this area,while the symbiotic bauxite deposit are mainly distributed in DongbaoshanDongchongshan area.The form and structure of the two ore bodies are simple and the grade is even.The vertical distribution of the two ore bodies is in a gradual relation with different colors and structures under the influence of the sedimentary environment.The thickness of the ore body is uniform,which is positively correlated with the content of Al2O3 and SiO2,and negatively correlated with the content of Fe2O3.The total contents of Al2O3,Fe2O3 and SiO2 in the ore are generally between 83.5%~85.5%,and the contents of three minerals have a relationship of rise and fall in different ores.
作者
刘东义
韩鎏
郑骥飞
胡小辉
LIU Dongyi;HAN Liu;ZHENG Jifei;HU Xiaohui(No.801 Hydrogeological and Engineering Geological Brigade of Shandong Provincial Bureau of Geology and Mineral Resources, Shandong Ji'nan 250014, China;Shandong Gold Resources Development Limited Corporation, Shandong Ji'nan 250101, China)
出处
《山东国土资源》
2020年第10期22-27,共6页
Shandong Land and Resources
基金
淄博市国土资源局委托项目,淄国土资字[2013]264号
淄国土资呈[2016]304号。
关键词
A层硬质黏土—铝土矿
矿床地质特征
分布规律
山东淄博
A layer hard clay-bauxite deposit
geological characteristics of the deposit
distribution regularity
Zibo city in Shandong province
