| 马来半岛彭亨河和吉兰丹河沉积物稀土元素特征及其物源示踪 |
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| 引用本文： | 吴凯凯,刘升发,金爱民,楼章华,吴斌,李景瑞,张辉,方习生,Che Abd.Rahim Bin Mohamed,石学法.马来半岛彭亨河和吉兰丹河沉积物稀土元素特征及其物源示踪[J].海洋学报,2019,41(7):77-91. |
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| 作者姓名： | 吴凯凯 刘升发 金爱民 楼章华 吴斌 李景瑞 张辉 方习生 Che Abd.Rahim Bin Mohamed 石学法 |
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| 作者单位： | 浙江大学 海洋学院 海洋地质与资源研究所,浙江 舟山 316021;自然资源部第一海洋研究所,山东 青岛 266061;自然资源部第一海洋研究所,山东 青岛 266061;青岛海洋科学与技术试点国家实验室 海洋地质过程与环境功能实验室,山东 青岛 266061;浙江大学 海洋学院 海洋地质与资源研究所,浙江 舟山,316021;自然资源部第一海洋研究所,山东 青岛,266061;马来西亚国民大学 环境科学与自然资源学院,雪兰莪 万宜新 43600 |
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| 基金项目： | 全球变化与海气相互作用专项（GASI-GEOGE-03，GASI-02-SCS-CJB01）；山东省-国家自然科学基金委联合资助项目（U1606401）；鳌山创新计划项目（2015ASKJ03）。 |
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| 摘 要： | 通过对马来半岛东部彭亨河28个站位和吉兰丹河22个站位表层沉积物进行稀土元素（REE）测试，对比分析了稀土元素的组成特征和分布规律，探讨了稀土元素组成的控制因素和物源示踪意义。结果表明，彭亨河沉积物稀土元素含量介于24.88～304.29 μg/g之间，平均含量为165.22 μg/g，吉兰丹河沉积物中稀土元素含量介于126.02～281.40 μg/g之间，平均值为181.15 μg/g。彭亨河大部分沉积物上陆壳(UCC)标准化模式为重稀土相对轻稀土富集，吉兰丹河沉积物轻重稀土无明显分异。沉积物源岩和矿物组成对两条河流的REE组成起到了重要的控制作用，化学风化对彭亨河REE组成的影响大于吉兰丹河，而彭亨河沉积物粒度组成显著差异也导致了其REE含量变化范围更大。δEuUCC-(Gd/Yb)UCC关系图中彭亨河和吉兰丹河沉积物分区明显，表明其可作为定性判别两条河流来源的有效指标，并可用于海区沉积物来源的示踪和定量识别。
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| 关 键 词： | 沉积物 稀土元素 控制因素 物源示踪 彭亨河 吉兰丹河 马来半岛 |
| 收稿时间： | 2018/5/22 0:00:00 |
| 修稿时间： | 2018/7/19 0:00:00 |
Rare earth element characteristics of Pahang River and Kelantan River sediments and their tracing implication |
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| Wu Kaikai,Liu Shengf,Jin Aimin,Lou Zhanghu,Wu Bin,Li Jingrui,Zhang Hui,Fang Xisheng,Che Abd. Rahim Bin Mohamed and Shi Xuefa.Rare earth element characteristics of Pahang River and Kelantan River sediments and their tracing implication[J].Acta Oceanologica Sinica (in Chinese),2019,41(7):77-91. |
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| Authors: | Wu Kaikai Liu Shengf Jin Aimin Lou Zhanghu Wu Bin Li Jingrui Zhang Hui Fang Xisheng Che Abd Rahim Bin Mohamed and Shi Xuefa |
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| Institution: | 1.Institute of Marine Geology and Resources, Ocean College, Zhejiang University, Zhoushan 316021, China2.First Institution of Oceanography, Ministry of Natural Resources, Qingdao 266061, China3.Laboratory for Marine Geology and Environment, Pilot National Laboratory for Marine Science and Technology (Qingdao), Qingdao 266061, China4.College of Environmental Science and Natural Resources, National University of Malaysia, Bandar Baru Bangi 43600, Malaysia |
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| Abstract: | Rare earth element (REE) in the surface sediments from Pahang River (28 samples) and Kelantan River (22 samples) in the eastern portion of Malay Peninsula are analyzed to decipher the characteristics of REE composition and distribution, to discern the controlling factors of REE composition, and to illustrate the significances of provenance tracing of REE. The results show that the total REE ranges from 24.88 μg/g to 304.29 μg/g, with an average of 165.22 μg/g, for the Pahang River; and 126.02 μg/g to 281.40 μg/g, with an average of 181.15 μg/g, for the Kelantan River, respectively. The UCC standardization of REE indicates that Pahang River sediments enrich with heavy rare earth elements, in relative to light rare earth elements. However, there is no significant difference between light and heavy rare earth elements in the Kelantan River. The composition of source rocks and minerals plays a controlling role in the REE composition of the two rivers. The influence of chemical weathering in the Pahang River is greater than Kelantan River, and the difference of grain size among the Pahang River sediments leads to larger REE variations. δEuUCC-(Gd/Yb)UCC discrimination diagram demonstrates that it can be used as an effective index to qualitatively seperate the sediment source of two rivers. It can further be used to trace and identify the source of sediments quantitatively on the continental shelf of Malay Peninsula. |
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| Keywords: | sediment rare earth element controlling factors provenance tracing Pahang River Kelantan River Malay Peninsula |
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