Compositional characteristics of sediment from Jiaozhou Bay in North China and the implication to the provenance
文献类型：CNKI期刊论文
| 作者 | Ziwei SUN; Jin LIU; Yue ZHANG; Jinming SONG ; Yuanyuan XIAO; Huamao YUAN; Ning LI; Xuegang LI
|
| 发表日期 | 2023-09-15 |
| 出处 | Journal of Oceanology and Limnology
 |
| 关键词 | Jiaozhou Bay sediments rare earth elements(REEs) sequential extraction provenance |
| 英文摘要 | Rare earth elements (REEs) can be used to trace source materials and identify their provenances,because of significant conservation and immobility during chemical alteration processes after erosion of materials from the provenance.This study focused on the temporal variation of REEs for columnar sediments from the mouth of Jiaozhou Bay in North China to understand the potential controls for the geochemical variations of sediments.Through extraction experiments,we identified that the residual fraction is the main host for REEs compared with other fractions (i.e.,exchangeable and carbonate fraction,easily reducible oxides fraction,reducible oxides fraction,magnetite fraction).REE ratios (e.g.,La_N/Sm_N and La_N/Yb_N;N:normalized by chondrite) lack correlations with grain size or the chemical index of alteration (CIA),which is correlated with major elements.All these indicate that these REE variations reflect the varying contribution of source materials from different provenances instead of grain size or chemical weathering effects.REE ratios (e.g.,La_N/Sm_N and La_N/Yb_N) remain relatively constant until the depth of roughly 40 cm (equivalent to the year 1995),and show obvious changes beyond this depth.Compared REE characteristics of Jiaozhou Bay with those of neighboring rivers and bedrocks,the relative contributions of Dagu River-Jiaolai River,and Licun River may have been increased during the sedimentary processes,which could be caused by the construction of reservoir and related change of aquaculture (e.g.,rapid accumulation of organic materials). |
| 文献子类 | CNKI期刊论文 |
| 资助机构 | Supported by the National Natural Science Foundation of China (No. 41776069) ; the Science and Technology Innovation Project of Laoshan Laboratory (No. LSKJ202202905) ; the Special Project of Strategic Leading Science and Technology of Chinese Academy of Sciences (No. XDB42020302) |
| 卷 | v.41期:05页:105-117 |
| 语种 | 英文; |
| 分类号 | P736.21 |
| ISSN号 | 2096-5508 |
| 源URL | [http://ir.qdio.ac.cn/handle/337002/187009]  |
| 专题 | 中国科学院海洋研究所 |
| 作者单位 | 1.CollegeofChemistryandMolecularEngineering,CollegeofMarineScienceandBiologicalEngineering,QingdaoUniversityofScienceandTechnology 2.PublicTechnologyServiceCenter,InstituteofOceanology,ChineseAcademyofSciences 3.KeyLaboratoryofMarineEcology&EnvironmentalSciences,InstituteofOceanology,ChineseAcademyofSciences 4.CenterforOceanMega-Science,ChineseAcademyofSciences 5.QingdaoNationalLaboratoryforMarineScienceandTechnology 6.KeyLaboratoryofMarineGeologyandEnvironment,InstituteofOceanology,ChineseAcademyofSciences |
| 推荐引用方式 GB/T 7714 | Ziwei SUN,Jin LIU,Yue ZHANG,et al. Compositional characteristics of sediment from Jiaozhou Bay in North China and the implication to the provenance. 2023. |
入库方式： OAI收割
来源：海洋研究所
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