150年以来红原雨养型泥炭中高分辨的汞同位素沉积记录
查看参考文献41篇
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文摘
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利用LUMEX915和多接收等离子体质谱(MC-ICP-MS)等仪器,分别对红原一个约150a(210Pb定年)时间跨度的泥炭剖面进行总汞含量和汞同位素比值测定.发现泥炭中汞含量从底部到表层逐渐增加,汞同位素δ202Hg从底部至表层呈变轻的趋势,变化范围分别在16.7～101.3ng/g和(-0.44‰±0.14‰)～(-1.45‰±0.22‰)之间.研究结果表明,工业革命不仅使研究区大气受到明显汞的污染,也使汞同位素组成呈现出变轻的趋势,这说明人类活动排放的汞同位素与自然排放的汞同位素有差异. |
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来源
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科学通报
,2011,56(8):583-588 【核心库】
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关键词
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泥炭
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雨养型
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汞
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同位素
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工业化
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地址
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1.
中国科学院地球化学研究所, 环境地球化学国家重点实验室, 北京, 100049
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中国科学院地球化学研究所, 环境地球化学国家重点实验室, 贵阳, 550025
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中国科学院广州地球化学研究所, 有机地球化学国家重点实验室, 广州, 510640
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中国科学院研究生院, 有机地球化学国家重点实验室, 广州, 510640
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语种
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中文 |
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文献类型
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研究性论文 |
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ISSN
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0023-074X |
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学科
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地质学 |
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基金
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国家自然科学基金资助项目
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文献收藏号
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CSCD:4265364
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