X射线荧光方法在矿区环境地球化学研究中的应用

庹先国; 滕彦国; 徐争启; 倪师军; 张成江

X射线荧光方法在矿区环境地球化学研究中的应用

1.
中国地质大学地球科学与资源学院, 北京 100083
2.
成都理工大学, 四川成都 610059
3.
北京师范大学环境科学研究所, 北京 100875

基金项目: 四川省青年科技基金; 中国博士后科学基金; 教育部重点科技项目

详细信息

作者简介:
庹先国(1966-), 男, 教授, 中国地质大学博士后

中图分类号: P618.51;P631.63
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- 文章访问数: 3711
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- 被引次数: 0
出版历程
- 收稿日期: 2003-06-23
- 刊出日期: 2003-11-25

Application XRF to Study Environmental Geochemistry in Mining Area

1.
Faculty of Earth Science and Mineral Resources, China University of Geosciences, Beijing 100083, China
2.
Chengdu University of Technology, Chengdu 610059, China
3.
Institute of Environmental Sciences, Beijing Normal University, Beijing 100875, China

摘要

摘要: 采用自行研制的高灵敏度能量色散X射线荧光分析仪分析了攀枝花矿区水系沉积物中微量元素的浓度, 并根据分析结果研究了矿区元素分布的地球化学特征, 本项研究的主要目的是探讨X射线荧光分析技术在矿区环境地球化学研究中的可行性, 探索矿区环境地球化学研究的方法技术.结果表明, XRF方法可以有效分析沉积物中元素的含量, 进而进行环境地球化学研究.
- X射线荧光方法 /
- 矿业活动 /
- 水系沉积物 /
- 环境地球化学
Abstract: The study objective is to investigate the feasibility of using XRF technique to research mining environmental geochemistry and to reveal the pattern of trace elements in mining environment. A high sensitive EDXRF analyzer was adopted to study environmental geochemistry in Panzhihua region. An EDXRF analyzer is made up of a double exciting apparatus with low energy X ray tube and isotope source and electricity cooled Sin PIN detector. The analyzer is characterized of high energy resolution and low detection limit. Some trace metal concentration was analyzed by above EDXRF analyzer in stream sediments in study area. The result shows that XRF can analyze concentrations of chemical elements in stream sediments and study the characteristics of environmental geochemistry.
- XRF /
- mining activities /
- stream sediment /
- environmental geochemistry

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图 1 攀枝花矿区水系沉积物的取样位置

A.宝顶和太平煤矿区; B.攀钢冶金区; C.攀枝花文教商业区; D.攀钢选矿区; E.攀枝花铁矿采矿区; F.攀钢尾矿坝; G.典型农业区; ○.取样点

Fig. 1. Sampling points of stream sediment in Panzhihua mining area

下载: 全尺寸图片幻灯片

图 2 沉积物中重金属地质累积指数的Box-and whisker

Fig. 2. Box-and whisker-plot of heavy metal I_geo in sediment

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图 3 Ti、V、Cu、Pb地质累积指数分布(A, B, …同图 2)

Fig. 3. I_geo distribution of Ti, V, Cu, Pb in study area

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表 1 仪器的能量分辨率和检出限

Table 1. Energy resolution and detection limit of analyzer

表 2 沉积物样品的XRF分析结果

Table 2. XRF analysis results of stream sediment samples

表 3 粒径为0.25 mm和0.125 mm粒级中同一元素含量的相关系数

Table 3. Correlation of same element between grain size 0.25 mm and 0.125 mm

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