豫西张窑院耐火粘土矿床地质特征研究  

Study on Geological Characteristics of Zhangyaoyuan Refractory Clay Deposit in Western Henan

作　　者：梁新辉[1,2] 冯绍平[1,2] 高晓[3] 王小涛[1,2] 张争辉[1,2] 张怡静[1,2] 

机构地区：[1]河南省地质矿产勘查开发局第一地质矿产调查院,河南洛阳471023 [2]河南省金银多金属成矿系列与深部预测重点实验室,河南洛阳471023 [3]河南省地质矿产勘查开发局第二地质矿产调查院,河南郑州450000

出　　处：《中国非金属矿工业导刊》2017年第2期12-15,共4页China Non-Metallic Minerals industry

基　　金：河南省"两权价款"地质科研项目(2015-258-03)

摘　　要：新安县张窑院耐火粘土矿平缓的倾斜层状产出于石炭系本溪组地层中,矿体主要由高铝粘土和硬质粘土组成。通过矿石化学分析、镜下特征及XRD分析,主要成分为一水硬铝石和高岭石;由差热分析曲线得出矿石吸热峰温度约535℃、放热峰温度约980℃;分析认为赋矿的本溪组地层沿袭于自中奥陶世以来形成的古陆风化壳,自下而上由风化壳洼坑处的陆屑充填到上面的陆缘海滨沼泽相沉积,形成了通称铁铝层含矿岩系,由各类粘土矿物形成不同的粘土矿层,矿层产状及分布特征主要受古岩溶地貌及南北向古构造裂隙的风化壳地形的控制。The refractory clay deposit is gently tilted and stratified in the Carboniferous Benxi Formation, and the orebodies are mainly composed of high-alumina clays and hard clays.Through the ore chemical analysis, microscopic characteristics and XRD analysis, the main components are monohydrate diaspore and kaolinite. The endothermic peak temperature of the ore is about 535℃and the exothermic peak temperature is about 980℃, which is obtained by differential thermal analysis curves. It is believed that the ore-bearing strata of Benxi Formation strata inherited the paleo-continental weathering crust formed since Middle Ordovician, bottomup chip by weathering crust depression crater where land filling to the upper epicontinental coastal swamp facies, formed the known as the Fe-Al layer of ore-bearing rock series, different clay layer formed by all kinds of clay minerals, the occurrence and distribution characteristics of the ore-bearing strata are mainly controlled by the ancient karst landform and weathering crust topography of the north-south tectonic fissures.

关 键 词：耐火粘土 XRD 差热分析 古陆风化壳 

分 类 号：P619.23[天文地球—矿床学]