Relationships between Abyssal Redox Conditions and Rock Magnetic Properties of Surficial Sediments in the Western Pacific
文献类型：期刊论文
| 作者 | Chen, Yanping3; Xu, Dong4; Qin, Huafeng1,5; Liu, Geng1,5; Li, Yibing2; Chen, Weiwei2; Yi, Liang2 |
| 刊名 | JOURNAL OF MARINE SCIENCE AND ENGINEERING
 |
| 出版日期 | 2023-06-01 |
| 卷号 | 11期号:6页码:12 |
| 关键词 | deep-sea sediments magnetic properties magnetic coercivity redox changes western Pacific |
| DOI | 10.3390/jmse11061132 |
| 英文摘要 | Reconstructing changes in deep/bottom-water redox conditions are critical for understanding the role of the deep ocean in global carbon and metals cycling; nevertheless, the quantitative relationships between redox proxies and abyssal dissolved oxygen are poorly investigated. In this work, we studied the rock magnetic properties of surficial sediments in the western Pacific to investigate their relationship with regional redox conditions. Our results reveal a consistent sedimentary magnetic mineral assemblage in the western Pacific, dominated by pseudo-single-domain magnetite (Fe3O4), while the ratio of detrital and biogenic magnetite particles in different sites varies substantially. Detailed analyses identified two major magnetic-coercivity components, with modal coercivity values of 13.1 & PLUSMN; 1.6 mT and 54.7 & PLUSMN; 5.3 mT, respectively. All the magnetic parameters we measured, including both concentration-dependent and grainsize-dependent parameters, and the magnetic coercivities, are generally correlated to sedimentary redox conditions; however, the coercivities obtained by mathematical unmixing exhibit a stronger linkage, explaining about a quarter of variance of redox changes. Our findings confirm the potential of magnetic properties for tracing abyssal redox changes in the western Pacific, while the observed magnetic-redox relationships are complex and need further investigation. |
| WOS关键词 | OCEAN OXYGENATION ; NORTHWEST PACIFIC ; MARINE-SEDIMENTS ; DEEP ; CARBON ; DISSOLUTION |
| WOS研究方向 | Engineering ; Oceanography |
| 语种 | 英语 |
| 出版者 | MDPI |
| WOS记录号 | WOS:001015372900001 |
| 源URL | [http://ir.iggcas.ac.cn/handle/132A11/111233]  |
| 专题 | 地质与地球物理研究所_岩石圈演化国家重点实验室 |
| 通讯作者 | Yi, Liang |
| 作者单位 | 1.Univ Chinese Acad Sci, Beijing 100049, Peoples R China 2.Tongji Univ, State Key Lab Marine Geol, Shanghai 200092, Peoples R China 3.Zhejiang Acad Marine Sci, Inst Oceanog 2, Minist Nat Resources, Hangzhou 310012, Peoples R China 4.Minist Nat Resources, Inst Oceanog 2, MNR Key Lab Submarine Geosci, Hangzhou 310012, Peoples R China 5.Chinese Acad Sci, Inst Geol & Geophys, State Key Lab Lithospher Evolut, Beijing 100029, Peoples R China |
| 推荐引用方式 GB/T 7714 | Chen, Yanping,Xu, Dong,Qin, Huafeng,et al. Relationships between Abyssal Redox Conditions and Rock Magnetic Properties of Surficial Sediments in the Western Pacific[J]. JOURNAL OF MARINE SCIENCE AND ENGINEERING,2023,11(6):12. |
| APA | Chen, Yanping.,Xu, Dong.,Qin, Huafeng.,Liu, Geng.,Li, Yibing.,...&Yi, Liang.(2023).Relationships between Abyssal Redox Conditions and Rock Magnetic Properties of Surficial Sediments in the Western Pacific.JOURNAL OF MARINE SCIENCE AND ENGINEERING,11(6),12. |
| MLA | Chen, Yanping,et al."Relationships between Abyssal Redox Conditions and Rock Magnetic Properties of Surficial Sediments in the Western Pacific".JOURNAL OF MARINE SCIENCE AND ENGINEERING 11.6(2023):12. |
入库方式： OAI收割
来源：地质与地球物理研究所
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