黑龙江省依安县红星高岭土矿床地质特征及成因分析  

Characteristics and Genesis of Hongxing Kaoline Deposit in Yian,Heilongjiang Province

作　　者：付忠才 FU Zhong-cai(The Ninth Institute Geological Exploration of Heilongjiang Province,Qiqihar 161006,China)

机构地区：[1]黑龙江省第九地质勘查院,黑龙江齐齐哈尔161006

出　　处：《河北地质大学学报》2021年第3期15-20,共6页Journal of Hebei Geo University

摘　　要：依安县红星高岭土矿是一超大型砂质高岭土矿床,已探明高岭土矿石资源量64863.07×10^(4)t,淘洗精矿量14128.89×10^(4)t。由3层近水平厚板状矿体组成,赋存在中更新统林甸组一段下部,矿体南北长1200~3402 m、东西宽1548~4000 m、延展面积8.72~10.23 km^(2)、平均厚度8.18~15.56m,矿石类型主要为含中细砂高岭土,其次为含砾中细砂高岭土,精矿Al_(2)0_(3),平均含量26.20%~26.66%、Fe_(2)O_(3)平均含量为1.16%~1.43%、TiO_(2)平均含量为0.32%~0.48%,-325目淘洗率平均在20.30%~422.83%之间。矿石矿物成分主要为高岭石,其次为石英、长石。矿石物理技术性能指标可满足建筑和日用瓷原料要求。矿床成因类型为湖相沉积型,成矿年代与赋矿地层林甸组形成时代一致,为中更新世早期。Hongxing kaolin deposit is a super large scale sandy kaolin deposit,with reserve of 648.63 million tons,and elutriation concentrate up to 141.29 million tons.The orebody is composed of three layers of nearly horizontal thick platelike orebodies,which occur in the lower part of the first member of the Middle Pleistocene Lindian Fm.The length of the orebodies is 1200 m~3402 m from north to south,the width of the orebodies is 1548 m~4000 m from east to west,the area of extension is 8.72 km^(2)~10.23 km^(2),and the average thickness is 8.18 m~15.56 m.The ore type is mainly medium-fine sandy Kaolin,followed by medium-fine gravel-bearing sandy kaolin.The average contents of Al_(2)0_(3),Fe_(2)O_(3)and TiO_(2) in concentrate are 26.20%~26.66%,1.16%~1.43%,0.32%~0.48%,and the average elution rate of-325 mesh is 20.30%~422.83%.The mineral composition of the ore is mainly Kaolinite,followed by quartz and feldspar.The physical and technical properties of ore can meet the requirements of building and domestic porcelain raw materials.The genetic type of the deposit is lacustrine sedimentary type,and the metallogenic age is consistent with the formation age of Lindian Fm,which is early Middle Pleistocene.

关 键 词：矿床特征 矿床成因 高岭土矿 依安 

分 类 号：P612[天文地球—矿床学]