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| 滇东南锡多金属矿天然核素~(238)U、~(232)Th、~(226)Ra放射性水平调查 | |
| 引用本文： | 喻亦林,喻卫芳,李杰.滇东南锡多金属矿天然核素~(238)U、~(232)Th、~(226)Ra放射性水平调查[J].地球与环境,2006,34(3):77-82. |
| 作者姓名： | 喻亦林 喻卫芳 李杰 |
| 作者单位： | 1. 云南省辐射环境监督站,云南,昆明,650034 2. 云南省核工业地质调查队,云南,昆明,650106 3. 云南省红河州环境监测站,云南,个旧,661000 |
| 摘 要： | 为查明滇东南锡多金属矿天然放射性水平,了解锡矿采、选、冶过程中的放射性污染,选择了该区10个锡矿山,测量了各类锡多金属矿原矿、精矿、尾矿及冶炼炉渣放射性核素比活度。锡多金属矿原矿及围岩放射性水平受地层与矿化类型影响很大,硫化矿整体放射性水平不高,砂锡矿却普遍高出背景值数倍,尾矿、炉渣放射性水平也相对较高,对环境的影响不容忽视。 |
| 关 键 词： | 滇东南 锡矿 放射性 调查 |
| 文章编号： | 1672-9250（2006）03-0077-06 |
| 收稿时间： | 2005-12-19 |
| 修稿时间： | 2006-02-21 |
INVESTIGATION OF RADIOACTIVITY LEVEL OF NATURAL NUCLIDES 238U, 232Th AND 226Ra IN TIN POLYMETALLIC ORES IN SOUTHEAST YUNNAN |
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| YU Yi-lin,YU Wei-fang,LI Jie.INVESTIGATION OF RADIOACTIVITY LEVEL OF NATURAL NUCLIDES 238U, 232Th AND 226Ra IN TIN POLYMETALLIC ORES IN SOUTHEAST YUNNAN[J].Earth and Environment,2006,34(3):77-82. | |
| Authors: | YU Yi-lin YU Wei-fang LI Jie |
| Institution: | 1. Yunnan Radio-environment Supervision Agency Yunnan, Kunming 650034, China; 2. Yunnan Nuclear Industrial Geological Investigation Team, Yunnan, Kunming 650106, China; 3. Yunnan Honghe Canton Environmental Monitoring Station, Yunnan, Gejiu 650000, China |
| Abstract: | In order to verify the natural radioactivity level of tin polymetallic ore in Southeast Yunnan,and find out radioactive pollution in mining,dressing and smelting processes,10 tin ores in this area were chosen to measure radionuclides’ specific activity in each kind of tin polymetallic ore,undressed ore,ore concentrate,debris and smelting slag.It is shown that the radioactivity level of tin polymetallic ore,undressed ore and adjacent formation is affected by the strata and mineralization type,the radioactivity level of sulfide ore is not high as a whole,while that of tin ore generally is several times higher than the background value and that of debris and slag is also relatively high,whose impact on the environment is not neglectable. |
| Keywords: | Southeast Yunnan tin ore radioactivity investigation |
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