Exploring Spatiotemporal Paleoenvironmental and Paleoceanographic Changes on the Continental Shelf Using Authigenic Greigite: A Case Study From the East China Sea
文献类型：期刊论文
| 作者 | Liu, Jianxing1,5; Xu, Taoyu1,5; Zhang, Qiang4; Yu, Xiaoxiao3; Wu, Yonghua1,5; Liu, Qingsong2,5; Shi, Xuefa1,5 |
| 刊名 | PALEOCEANOGRAPHY AND PALEOCLIMATOLOGY
 |
| 出版日期 | 2023-06-01 |
| 卷号 | 38期号:6页码:18 |
| ISSN号 | 2572-4517 |
| 关键词 | greigite continental shelf rock magnetism paleoenvironment paleoceanography sea-level change |
| DOI | 10.1029/2023PA004621 |
| 英文摘要 | The lack of suitable indicators of changes in such as sea-level and circulation has been a major limit to paleoenvironmental and paleoceanographic investigations in continental shelf regions. This paper presents an environmental magnetic study by comparing two late-Quaternary sediment cores (DH02 and DH03) from the outer shelf of the East China Sea (ECS). Late and early Marine Isotope Stage (MIS) 3 sediments were deposited in a prodelta under cold coastal currents and an open-shelf with the Taiwan Warm Current and upwelling. The dominant iron-bearing minerals of the late and early MIS 3 sediments are authigenic greigite (Fe3S4) and pyrite (FeS2), respectively, which were assumed to be formed nearly syndepositionally. The overlying sediments, however, are magnetically dominated by detrital magnetite. This pattern corresponds well to the temporal changes in sea-level over this period. The widespread occurrence of greigite in the late MIS 3 sediments can also be used for future stratigraphic division and correlation in the ECS. Additionally, compared to microfossil assemblages, rock magnetic parameters based on greigite may be more sensitive to environmental changes on continental shelves. Furthermore, the inter-borehole spatial comparisons imply not only a sedimentary hiatus/erosion of at least 30-m thickness in core DH02, most probably during the Last Glacial Maximum, but also that core DH02 was in a more reductive environment than core DH03 during late MIS 3. The findings highlight the potential of authigenic greigite as an indicator of spatiotemporal changes in paleoenvironmental and paleoceanographic conditions on the continental shelf at orbital or even suborbital timescales. |
| WOS关键词 | SOUTH YELLOW SEA ; MAGNETIC PARTICLE-SYSTEMS ; YANGTZE-RIVER DELTA ; GULF-OF-MEXICO ; MARINE-SEDIMENTS ; ENVIRONMENTAL MAGNETISM ; DIAGENETIC FORMATION ; SULFATE REDUCTION ; TRACE-METALS ; LEVEL CHANGE |
| 资助项目 | National Natural Science Foundation of China[41976078] ; Basic Scientific Fund for National Public Research Institutes of China[2021S01] ; Basic Scientific Fund for National Public Research Institutes of China[2021Q09] ; Laboratory for Marine Geology, Qingdao Pilot National Laboratory for Marine Science and Technology[MGQNLM-TD201903] |
| WOS研究方向 | Geology ; Oceanography ; Paleontology |
| 语种 | 英语 |
| 出版者 | AMER GEOPHYSICAL UNION |
| WOS记录号 | WOS:001006945200001 |
| 资助机构 | National Natural Science Foundation of China ; National Natural Science Foundation of China ; Basic Scientific Fund for National Public Research Institutes of China ; Basic Scientific Fund for National Public Research Institutes of China ; Laboratory for Marine Geology, Qingdao Pilot National Laboratory for Marine Science and Technology ; Laboratory for Marine Geology, Qingdao Pilot National Laboratory for Marine Science and Technology ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; Basic Scientific Fund for National Public Research Institutes of China ; Basic Scientific Fund for National Public Research Institutes of China ; Laboratory for Marine Geology, Qingdao Pilot National Laboratory for Marine Science and Technology ; Laboratory for Marine Geology, Qingdao Pilot National Laboratory for Marine Science and Technology ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; Basic Scientific Fund for National Public Research Institutes of China ; Basic Scientific Fund for National Public Research Institutes of China ; Laboratory for Marine Geology, Qingdao Pilot National Laboratory for Marine Science and Technology ; Laboratory for Marine Geology, Qingdao Pilot National Laboratory for Marine Science and Technology ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; Basic Scientific Fund for National Public Research Institutes of China ; Basic Scientific Fund for National Public Research Institutes of China ; Laboratory for Marine Geology, Qingdao Pilot National Laboratory for Marine Science and Technology ; Laboratory for Marine Geology, Qingdao Pilot National Laboratory for Marine Science and Technology |
| 源URL | [http://ir.iggcas.ac.cn/handle/132A11/111202]  |
| 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 | Liu, Jianxing; Shi, Xuefa |
| 作者单位 | 1.Minist Nat Resources MNR, Inst Oceanog 1, Key Lab Marine Geol & Metallogeny, Qingdao, Peoples R China 2.Southern Univ Sci & Technol, Ctr Marine Magnetism CM2, Dept Ocean Sci & Engn, Shenzhen, Peoples R China 3.Chinese Acad Sci, Guangzhou Inst Geochem, State Key Lab Isotope Geochem, Guangzhou, Peoples R China 4.Chinese Acad Sci, Inst Geol & Geophys, State Key Lab Lithospher Evolut, Beijing, Peoples R China 5.Qingdao Pilot Natl Lab Marine Sci & Technol, Lab Marine Geol, Qingdao, Peoples R China |
| 推荐引用方式 GB/T 7714 | Liu, Jianxing,Xu, Taoyu,Zhang, Qiang,et al. Exploring Spatiotemporal Paleoenvironmental and Paleoceanographic Changes on the Continental Shelf Using Authigenic Greigite: A Case Study From the East China Sea[J]. PALEOCEANOGRAPHY AND PALEOCLIMATOLOGY,2023,38(6):18. |
| APA | Liu, Jianxing.,Xu, Taoyu.,Zhang, Qiang.,Yu, Xiaoxiao.,Wu, Yonghua.,...&Shi, Xuefa.(2023).Exploring Spatiotemporal Paleoenvironmental and Paleoceanographic Changes on the Continental Shelf Using Authigenic Greigite: A Case Study From the East China Sea.PALEOCEANOGRAPHY AND PALEOCLIMATOLOGY,38(6),18. |
| MLA | Liu, Jianxing,et al."Exploring Spatiotemporal Paleoenvironmental and Paleoceanographic Changes on the Continental Shelf Using Authigenic Greigite: A Case Study From the East China Sea".PALEOCEANOGRAPHY AND PALEOCLIMATOLOGY 38.6(2023):18. |
入库方式： OAI收割
来源：地质与地球物理研究所
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