| 稀土元素作为示踪标记在海洋沉积动力学中应用前景的初步探讨 |
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| 引用本文： | 周晓静,蒋富清,李安春,孟庆勇.稀土元素作为示踪标记在海洋沉积动力学中应用前景的初步探讨[J].海洋学报,2010,32(1):67-82. |
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| 作者姓名： | 周晓静 蒋富清 李安春 孟庆勇 |
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| 作者单位： | 1.中国科学院 海洋研究所 海洋地质与环境中国科学院重点实验室,山东 青岛 266071;中国科学院 研究生院,北京 100049 |
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| 基金项目： | 国家自然科学基金资助项目(40776030;40576032;40506016)。 |
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| 摘 要： | 根据对长江等5条河流和东海陆架区总计146个沉积物样品的稀土元素和粒度分析结果,借助统计学方法,讨论了河流和东海近岸沉积物稀土元素分布格局的形成因素及其对沉积动力作用的响应,结果表明,各河流沉积物在稀土元素总量和轻重稀土分异等参数上有差异;在长江口沉积物中稀土元素在小于2和2~31μm粒级中较富集,全岩稀土元素含量受物质组成占优的粒级控制;在东海陆架研究区稀土元素含量由岸向海有减小的趋势,在河口附近相对较高,轻重稀土分异自28°N向南有增大的趋势。
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| 关 键 词： | 稀土元素 示踪标记 东海陆架 沉积物输运 |
| 收稿时间： | 2008/12/5 0:00:00 |
A preliminary study on fingerprinting approach in marine sediment dynamics with the rare earth elements |
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| ZHOU Xiao-jing,JIANG Fu-qing,LI An-chun and MENG Qing-yong.A preliminary study on fingerprinting approach in marine sediment dynamics with the rare earth elements[J].Acta Oceanologica Sinica (in Chinese),2010,32(1):67-82. |
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| Authors: | ZHOU Xiao-jing JIANG Fu-qing LI An-chun and MENG Qing-yong |
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| Institution: | 1.Key Laboratory of Chinese Academy of Sciences for Marine Geology & Environment,Institute of Oceanology,Chinese Academy of Sciences,Qingdao 266071, China; ;Graduate School,Chinese Academy of Sciences,Beijing 100049, China2.Key Laboratory of Chinese Academy of Sciences for Marine Geology & Environment,Institute of Oceanology,Chinese Academy of Sciences,Qingdao 266071, China; |
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| Abstract: | Total of 146 sediment samples were collected from the shelf of the East China Sea and five rivers,including the Huanghe River,the Changjiang River,the Qiantang River,the Oujiang River and the Minjiang River.The sediment grain-size and the content of rare earth element(REE) were measured with a laser particle size analyzer and an ICP-MS respectively.Results show that the REE absolute content and the ratio of LREE(light REE) to HREE(heavy REE) content are different in the sediments between rivers.There are hi... |
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| Keywords: | rare earth element fingerprints shelf of East China Sea sediment transport |
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