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东坪式金矿盲矿体的多元信息预测研究（续３）──γ能谱盲矿预测参照模型刘燕君，金丽芳，冯钟葵，冯纪录（北京大学遥感研究所）６γ能谱盲矿预测参照模型自然界中存在的天然放射性元素主要有铀系、钍系、锕铀系元素，还有钾的同位素４０Ｋ。γ辐射是放射性元素在衰变过...
Multi-information Forecasting of Blind Orebody in Dongping Gold Mine (Cont. 3) ──Reference Model of Blind Ore Prediction in γ Energy Spectrum LIU Yan-jun, JIN Li-fang, FENG Zhong-kui, FENG Jilu (Remote Sensing Institute, Peking University) The natural radioactive elements in nature are mainly uranium series, thorium series, actinium uranium series elements, as well as potassium isotopes 40K. Gamma radiation is the decay of radioactive elements ...