摘要
区内耐火黏土矿为沉积型床,含矿岩系为石炭系本溪组。本溪组含矿两层,仅中矿层发育。中矿层赋存于本溪组中段,埋深0~165m,东西长约5.7km,南北宽约0.7km,总体呈较规则的多边形;矿层形态比较简单,呈层状分布,总体倾向南东,倾角0°~12°;矿层属较稳定型,均厚2.88m。根据岩矿石微量元素、岩性特征、古生物特征,结合区域构造环境分析,区内耐火黏土矿形成于构造稳定、气候湿润的陆相淡水环境,古水体呈有氧—还原特征,成矿物质主要来源奥陶系碳酸盐岩、次为周边古陆硅酸岩。
The fireclay deposit in this area is a sedimentary bed,and the ore bearing rock series is the Carboniferous Benxi formation.The Benxi formation contains two layers of ore,and only the middle ore layer is developed.In the middle of the seam in Benxi formation,it is a regular polygon with buried depth of 0~165 m,5.7 km east-west long,and with north-south width of 0.7 km;the seam shape is relatively simple,layered distribution.The overall trend is southeast,at an angle of 0~12°;the ore is stable,with average thickness of 2.88 m.According to the trace elements,lithological characteristics and paleontological characteristics of rock ore,combined with the regional tectonic environment analysis,the fireclay ore in this area is formed in a terrestrial freshwater environment with stable structure and humid climate.The paleo-water body is characterized by aerobic-reduction.The ore-forming material is mainly composed of Ordovician carbonate rocks and the sub-alternate paleo-alumina.
出处
《长春工程学院学报（自然科学版）》
2018年第2期80-84,共5页
Journal of Changchun Institute of Technology：Natural Sciences Edition
基金
河南省2016年度财政地质勘查基金项目(豫国土资发[2016]46号项目编号03)
关键词
耐火黏土矿
地质特征
矿床成因
焦谷堆
fireclay ore
geological characteristics
ore genesis
Jiaogudui
