Geochemical character and material source of sediments in the eastern Philippine Sea
文献类型：期刊论文
| 作者 | Xu ZhaoKai1,2,3,4; Li AnChun1; Jiang FuQing1; Xu FangJian1,4 |
| 刊名 | CHINESE SCIENCE BULLETIN
 |
| 出版日期 | 2008-03-01 |
| 卷号 | 53期号:6页码:923-931 |
| 关键词 | Sediment Grain-size Rare Earth Elements Discriminant Function Elemental Occurrence Phase Material Source Eastern Philippine Sea |
| ISSN号 | 1001-6538 |
| DOI | 10.1007/s11434-008-0118-7 |
| 文献子类 | Article |
| 英文摘要 | Based upon analyses of grain-size, rare earth element (REE) compositions, elemental occurrence phases of REE, and U-series isotopic dating, the sediment characteristics and material sources of the study area were examined for the recently formed deep-sea clays in the eastern Philippine Sea. The analytical results are summarized as follows. (1) Low accumulation rate, poor sorting and roundness, and high contents of grains coarser than fine silt indicate relatively low sediment input, with localized material source without long distance transport. (2) The REE Contents are relatively high. Shale-normalized patterns of REE indicate weak enrichment in heavy REE (HREE), Ce-passive anomaly, and Eu-positive anomaly. (3) Elemental occurrence phases of REE between the sediments with and without crust are similar. REE mainly concentrate in residual phase and then in ferromanganese oxide phase. The light REE (LREE) enrichment, Ce-positive anomaly, and Eu-positive anomaly occur in residual phase. Ferromanganese oxide phase shows the characteristics of relatively high HREE content and Ce-passive anomaly. (4) There are differences in each above mentioned aspect between the sediments with and without ferromanganese crust. (5) Synthesizing the above characteristics and source discriminant analysis, the study sediments are deduced to mainly result from the alteration of local and nearby volcanic materials. Continental materials transported by wind and/or river (ocean) flows also have minor contributions.; Based upon analyses of grain-size, rare earth element (REE) compositions, elemental occurrence phases of REE, and U-series isotopic dating, the sediment characteristics and material sources of the study area were examined for the recently formed deep-sea clays in the eastern Philippine Sea. The analytical results are summarized as follows. (1) Low accumulation rate, poor sorting and roundness, and high contents of grains coarser than fine silt indicate relatively low sediment input, with localized material source without long distance transport. (2) The REE Contents are relatively high. Shale-normalized patterns of REE indicate weak enrichment in heavy REE (HREE), Ce-passive anomaly, and Eu-positive anomaly. (3) Elemental occurrence phases of REE between the sediments with and without crust are similar. REE mainly concentrate in residual phase and then in ferromanganese oxide phase. The light REE (LREE) enrichment, Ce-positive anomaly, and Eu-positive anomaly occur in residual phase. Ferromanganese oxide phase shows the characteristics of relatively high HREE content and Ce-passive anomaly. (4) There are differences in each above mentioned aspect between the sediments with and without ferromanganese crust. (5) Synthesizing the above characteristics and source discriminant analysis, the study sediments are deduced to mainly result from the alteration of local and nearby volcanic materials. Continental materials transported by wind and/or river (ocean) flows also have minor contributions. |
| 学科主题 | Multidisciplinary Sciences |
| URL标识 | 查看原文 |
| 语种 | 英语 |
| WOS记录号 | WOS:000254360500016 |
| 公开日期 | 2010-12-24 |
| 源URL | [http://ir.qdio.ac.cn/handle/337002/5081]  |
| 专题 | 海洋研究所_海洋地质与环境重点实验室 |
| 作者单位 | 1.Chinese Acad Sci, Inst Oceanol, Key Lab Marine Geol & Environm, Qingdao 266071, Peoples R China 2.Kunsan Natl Univ, Dept Oceanog, Kunsan 573701, South Korea 3.Chinese Acad Sci, Yantai Inst Coastal Zone Res Sustainable Dev, Yantai 264003, Peoples R China 4.Chinese Acad Sci, Grad Univ, Beijing 100049, Peoples R China |
| 推荐引用方式 GB/T 7714 | Xu ZhaoKai,Li AnChun,Jiang FuQing,et al. Geochemical character and material source of sediments in the eastern Philippine Sea[J]. CHINESE SCIENCE BULLETIN,2008,53(6):923-931. |
| APA | Xu ZhaoKai,Li AnChun,Jiang FuQing,&Xu FangJian.(2008).Geochemical character and material source of sediments in the eastern Philippine Sea.CHINESE SCIENCE BULLETIN,53(6),923-931. |
| MLA | Xu ZhaoKai,et al."Geochemical character and material source of sediments in the eastern Philippine Sea".CHINESE SCIENCE BULLETIN 53.6(2008):923-931. |
入库方式： OAI收割
来源：海洋研究所
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