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学科主题: Environmental Sciences; Geosciences, Multidisciplinary; Water Resources
题名: Geochemical characteristics and provenance implication of rare earth elements in surface sediments from bays along Guangdong Coast, Southeast China
作者: Yan, B ; Yan, W ; Miao, L ; Huang, WX ; Chen, Z
通讯作者: yanbin0924@gmail.com ; wyan@scsio.ac.cn
关键词: Rare earth elements ; Sediments ; Provenance ; Bay ; Southeast China
刊名: ENVIRONMENTAL EARTH SCIENCES
发表日期: 2012
卷: 65, 期:7, 页:2195-2205
部门归属: [Yan, Bin; Yan, Wen; Miao, Li; Huang, Weixia; Chen, Zhong] Chinese Acad Sci, CAS Key Lab Marginal Sea Geol, S China Sea Inst Oceanol, Guangzhou 510301, Guangdong, Peoples R China; [Yan, Bin; Huang, Weixia] Chinese Acad Sci, Grad Univ, Beijing 100039, Peoples R China
项目归属: 海洋地质
摘要: A systematic study of the granulometric properties and the occurrence and distribution of rare earth elements (REE) within surface sediments from ten bays situated along the coast of Southeast China has facilitated a more rigorous understanding of constraints on sediment provenance in the area. The results show that REE concentrations are similar within a single bay, but vary considerably (133.58-251.77 mg/kg) among the bays. The chondrite-normalized distribution patterns show the typical enrichment of light REEs (LREEs: La-Eu) relative to heavy REEs (HREEs: Gd-Lu), and an apparent depletion of Eu, which is diagnostic of a terrigenous sediment source. Obvious enrichments of the middle REEs (MREEs: Sm-Ho) in the PAAS-normalized (Post-Archean Australian Shale) distribution patterns of these bay sediments are similar to results reported from large rivers in China. Comparing the REE composition of the bay sediments with those of adjoining fluvial sediments and with the bedrock of the surrounding drainage basins, the latter are indicated as the dominant sediment source. The uniform REE distribution patterns, and MREE enrichments, prove that the sediments are derived from the material transported by the streams and rivers that discharge into the bays.
语种: 英语
WOS记录号: WOS:000301547000022
Citation statistics:
内容类型: 期刊论文
URI标识: http://ir.scsio.ac.cn/handle/344004/10347
Appears in Collections:中科院边缘海地质重点实验室_期刊论文

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Yan, B; Yan, W; Miao, L; Huang, WX; Chen, Z.Geochemical characteristics and provenance implication of rare earth elements in surface sediments from bays along Guangdong Coast, Southeast China,ENVIRONMENTAL EARTH SCIENCES,2012,65(7):2195-2205
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