| 土壤中铀系不平衡对地面伽马能谱测量的影响 |
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| 引用本文： | 刘海生.土壤中铀系不平衡对地面伽马能谱测量的影响[J].物探与化探,2002,26(3):207-208. |
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| 作者姓名： | 刘海生 |
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| 作者单位： | 中国地质大学,工程技术学院,北京,100083 |
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| 基金项目： | 国家计委科研基金 (计司国地 1997 45 )，原地质矿产部科研基金 (地发 1997 2 5 3)资助 |
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| 摘 要： | 对采自云南省个旧地区的100件土壤样品进行室内多道伽马能谱分析后发现,该地区土壤的铀镭平衡系数为0.65,表现出贫镭偏铀的特征。铀镭的不平衡导致地面或航空伽马能谱测量中铀道数据与实际情况有很大的误差,因此需要作适当地处理加以修正。
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| 关 键 词： | 土壤 铀系 伽马能谱 |
| 文章编号： | 1000-8918(2002)03-0207-02 |
| 收稿时间： | 2001-11-16 |
URANIUM-SERIES DISEQUILIBRIUM IN SOILS AND ITS EFFECTON GROUND GAMMA-RAY SURVEY |
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| LIU Hai-sheng.URANIUM-SERIES DISEQUILIBRIUM IN SOILS AND ITS EFFECTON GROUND GAMMA-RAY SURVEY[J].Geophysical and Geochemical Exploration,2002,26(3):207-208. |
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| Authors: | LIU Hai-sheng |
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| Institution: | China University of Geosciences, Beijing 100083, China |
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| Abstract: | Measurements of U and Ra in 100 soil samples collected from Gejiu area in Yunnan Province show that the Ra/U equilibrium ratio is 0.65,implying that U is richer than Ra.Some indications of regional disequilibrium have also been found.The spreading equilibrium ratio values indicate that disequilibrium may cause errors in U channel data obtained by ground gamma-ray surveying. Neverthelsss,these data can be improved to some extent by equilibrium ratio correction. |
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| Keywords: | soils uranium-series gamma-ray |
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