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| 成都经济区天然放射性环境评价 |
| 曾兵，葛良全，刘合凡，张金钊 |
| 成都理工大学 地学核技术四川省重点实验室，四川 成都610059 |
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AN EVALUATION OF NATURAL RADIATION ENVIRONMENTAL GEOLOGY
OF CHENGDU ECONOMIC AREA |
| ZENG Bing, GE Liang-Quan, LIU He-Fan, ZHANG Jin-Zhao |
| Key Laboratory of Applied Nuclear Techniques in Geosciences, Chengdu University of Technology, Chengdu610059, China |
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摘要 根据区域化探数据预测地空界面天然放射性水平的基本原理和成都经济区1∶25万土壤化探数据中铀、钍、钾的含量数据，首次对成都经济
区的天然放射性地质环境进行了研究和评价。结果表明成都经济区的地质构造和地表出露岩层与研究区的放射性环境有较大关系。在研究区的大部
分范围内，40K比活度高于全国和世界的平均值，238U的比活度远低于全国和世界的平均值，232Th的比活度与全国平均值相当，但明显高于世界平
均值。除龙门山褶皱带和峨眉山—瓦山断褶带的小部分地区外，成都经济区的各项辐射评价参数均在国家建筑材料放射性核素限量标准控制式的范
围之内。该文可为合理、有效的利用成都经济区的国土资源提供支持，也可对加速成都经济区经济一体化和城市的可持续发展提供必要的参考。
根据区域化探数据预测地空界面天然放射性水平的基本原理和成都经济区1∶25万土壤化探数据中铀、钍、钾的含量数据，首次对成都经济
区的天然放射性地质环境进行了研究和评价。结果表明成都经济区的地质构造和地表出露岩层与研究区的放射性环境有较大关系。在研究区的大部
分范围内，40K比活度高于全国和世界的平均值，238U的比活度远低于全国和世界的平均值，232Th的比活度与全国平均值相当，但明显高于世界平
均值。除龙门山褶皱带和峨眉山—瓦山断褶带的小部分地区外，成都经济区的各项辐射评价参数均在国家建筑材料放射性核素限量标准控制式的范
围之内。该文可为合理、有效的利用成都经济区的国土资源提供支持，也可对加速成都经济区经济一体化和城市的可持续发展提供必要的参考。
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| Abstract： Using geochemical prospecting data obtained in previous geological investigation and soil U, Th and K content data
obtained from 1∶250 000 geochemical exploration in Chengdu Economic Area, this paper predicted the natural radioactivity on the
groundair interface. The results show that the specific activity of the radioactive nuclide 40K is higher than its average
values of China and the world, 238U is much lower than its average values of China and the world, and 232Th is equivalent to
its average value of China but much higher than its average value of the world. Except for small areas in Longmenshan folded belt
and EmeishanWashan faulted fold belt, the radiation level of Chengdu Economic Area is within the national limits of radioactive
nuclides in building materials. This paper provides support for the reasonable and effective use of land and resources in Chengdu
Economic Area and also supplies the necessary reference for speeding up economic integration and sustainable development of
cities. |
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出版日期: 2010-02-10
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| 引用本文: |
曾兵, 葛良全, 刘合凡, 张金钊. 成都经济区天然放射性环境评价[J]. 物探与化探, 2010, 34(1): 79-84.
ZENG Bing, GE Liang-Quan, LIU He-Fan, ZHANG Jin-Zhao. AN EVALUATION OF NATURAL RADIATION ENVIRONMENTAL GEOLOGY
OF CHENGDU ECONOMIC AREA. Geophysical and Geochemical Exploration, 2010, 34(1): 79-84.
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