CAJ | 학술논문

通过系统的岩心观察、剖面对比和分析,笔者认为松辽盆地钱家店铀矿床的控矿层间氧化带主要由红色氧化砂岩与局部分布的黄色砂岩和灰白色砂岩组成.红色砂岩中含炭屑、黄铁矿、钛铁矿、菱铁矿,并遭强烈氧化,推断其原生色应主要为灰色,由后生氧化作用将其改造而呈现红色.层间氧化带的形态和展布特征主要受沉积相控制,后者也同时控制着铀矿化的产出.铀矿化在剖面上主要定位于红色氧化带减薄或尖灭部位,平面上主要分布于红色氧化带前锋线附近.
통과계통적암심관찰、부면대비화분석,필자인위송료분지전가점유광상적공광층간양화대주요유홍색양화사암여국부분포적황색사암화회백색사암조성.홍색사암중함탄설、황철광、태철광、릉철광,병조강렬양화,추단기원생색응주요위회색,유후생양화작용장기개조이정현홍색.층간양화대적형태화전포특정주요수침적상공제,후자야동시공제착유광화적산출.유광화재부면상주요정위우홍색양화대감박혹첨멸부위,평면상주요분포우홍색양화대전봉선부근.
Through systematic drill core observation,section contrast and analysis,it is proved that the ore-controlling interlayer oxidation zone of Qianjiadian uranium deposit is mainly composed by the red oxidized sandstone and locally distributed yellow and off-white sandstones.The red sandstone contains charcoal fragments,pyrite,ilmenite,siderite,which have been oxidized intensively,and it can be deduced that their original color was gray and became red due to the oxidization.The distribution of the oxidation zone is mainly controlled by the sedimentary facies,which also controll uranium metallization.The uranium orebodies mainly developed in the thinning or pinch parts of the red oxidation zone in section.On the plans,the uranium mineralization distributes near the front of the red interlayer oxidation zone.