Source contributions to iron cycling in marginal sea: Evidence from Iron isotope compositions of Changjiang Estuary sediments
文献类型：期刊论文
| 作者 | Wang, Jiao1,6; Sun, Ziwei1; Yuan, Huamao2,3; Song, Jinming2,3; Li, Ning5; Li, Chen5; Xiao, Yuanyuan1,4,5 |
| 刊名 | MARINE CHEMISTRY
 |
| 出版日期 | 2025-12-01 |
| 卷号 | 273页码:10 |
| 关键词 | Iron isotope Source material Changjiang Estuary Chinese marginal sea sediments |
| ISSN号 | 0304-4203 |
| DOI | 10.1016/j.marchem.2025.104575 |
| 通讯作者 | Xiao, Yuanyuan(yuanyuan.xiao@qdio.ac.cn) |
| 英文摘要 | As an important input area of riverine and terrigenous materials in the east coast of China, the knowledge on iron budget of marginal sea sediments in the Changjiang Estuary is significant to understand the iron cycle of marginal sea ecosystems. Iron isotope composition has been recently used as a critical indicator for understanding the iron cycle and biogeochemical processes of the Earth. This study reports the iron isotope variation of two sediment cores from the Changjiang Estuary, i.e., 3100-1 and DH5. The delta 56Fe values of samples from the core 3100-1 vary from +0.02 %o to +0.08 %o with an average of +0.05 +/- 0.03 %o, and the delta 56Fe values of samples from the core DH5 range from +0.02 %o to +0.10 %o, with an average of +0.07 +/- 0.05 %o. The delta 56Fe values of sediments from these two cores are not significantly correlated with parameters for organic carbon content, chemical weathering, grain size, or redox condition. Together with the Principal Component Analysis, these indicate that source material inputs significantly affect iron isotope compositions in both cores. Meanwhile, the iron isotope compositions of the core DH5 can reflect changes of human activities in the Changjiang Basin. Our findings provide pivotal iron isotope evidence for understanding the marginal sea iron cycle under natural and anthropogenic impacts, offering an important perspective for further studies on the global marginal sea ecosystem. |
| WOS关键词 | YANGTZE-RIVER ESTUARY ; EAST CHINA SEA ; POLYCYCLIC AROMATIC-HYDROCARBONS ; SPATIOTEMPORAL DISTRIBUTION ; HOLOCENE SEDIMENTS ; HEAVY-METALS ; YELLOW-RIVER ; INNER SHELF ; FRACTIONATION ; EVOLUTION |
| 资助项目 | National Natural Science Foundation of China[92479112] ; Taishan Scholars Program |
| WOS研究方向 | Chemistry ; Oceanography |
| 语种 | 英语 |
| WOS记录号 | WOS:001615581400001 |
| 出版者 | ELSEVIER |
| 源URL | [http://ir.qdio.ac.cn/handle/337002/203897]  |
| 专题 | 海洋研究所_海洋生态与环境科学重点实验室 |
| 通讯作者 | Xiao, Yuanyuan |
| 作者单位 | 1.Chinese Acad Sci, Inst Oceanol, Key Lab Ocean Observat & Forecasting, Key Lab Marine Geol & Environm, Qingdao 266071, Peoples R China 2.Qingdao Marine Sci & Technol Ctr, Lab Marine Ecol & Environm Sci, Qingdao 266237, Peoples R China 3.Chinese Acad Sci, Inst Oceanol, Lab Marine Ecol & Environm Sci, Qingdao 266071, Peoples R China 4.Qingdao Marine Sci & Technol Ctr, Lab Marine Geol, Qingdao 266237, Peoples R China 5.Chinese Acad Sci, Inst Oceanol, Publ Technol Ctr, Qingdao 266071, Peoples R China 6.Shandong Univ Sci & Technol, Coll Earth Sci & Engn, Qingdao 266590, Peoples R China |
| 推荐引用方式 GB/T 7714 | Wang, Jiao,Sun, Ziwei,Yuan, Huamao,et al. Source contributions to iron cycling in marginal sea: Evidence from Iron isotope compositions of Changjiang Estuary sediments[J]. MARINE CHEMISTRY,2025,273:10. |
| APA | Wang, Jiao.,Sun, Ziwei.,Yuan, Huamao.,Song, Jinming.,Li, Ning.,...&Xiao, Yuanyuan.(2025).Source contributions to iron cycling in marginal sea: Evidence from Iron isotope compositions of Changjiang Estuary sediments.MARINE CHEMISTRY,273,10. |
| MLA | Wang, Jiao,et al."Source contributions to iron cycling in marginal sea: Evidence from Iron isotope compositions of Changjiang Estuary sediments".MARINE CHEMISTRY 273(2025):10. |
入库方式： OAI收割
来源：海洋研究所
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