Magnetostratigraphy of Abyssal Deposits in the Central Philippine Sea and Regional Sedimentary Dynamics During the Quaternary
文献类型:期刊论文
作者 | Yi, Liang2; Hu, Bangqi1,3; Zhao, Jingtao3; Jiang, Xingyu8; Shu, Yeqiang7; Wang, Xingxing3,6; Guo, Jianwei3; Wang, Feifei3; Ding, Xue3; Liu, Geng4,5 |
刊名 | PALEOCEANOGRAPHY AND PALEOCLIMATOLOGY |
出版日期 | 2022-05-01 |
卷号 | 37期号:5页码:22 |
ISSN号 | 2572-4517 |
关键词 | magnetostratigraphy sediment grain size sediment accumulation rate Philippine Sea mid-Pleistocene transition tropical climate processes |
DOI | 10.1029/2021PA004365 |
英文摘要 | The Philippine Sea is a typical region of aeolian dust reposition and is located within the Western Pacific Warm Pool. Here, we use the paleomagnetic stratigraphy and the grain-size distributions of Quaternary abyssal deposits in the Central Philippine Sea to investigate the factors controlling regional sedimentary and paleoenvironmental changes. Our principal results are as follows: (a) A reliable geochronologic framework for Quaternary sediments in the Central Philippine Sea is established. (b) An eastward expansion of the regional depocenter in the Middle Pleistocene is observed. (c) The mean grain size of the abyssal sediments is 7-8 mu m, and there are only minor differences between the sites. Comparison of the geochronological framework with various paleoenvironmental events during the Mid-Pleistocene Transition shows that sedimentary processes can be correlated to a major transition in global climate which affected regions from the Asian interior to the tropical Pacific, and that changes in aeolian sedimentation are likely the predominant factor responsible. A derived grain-size proxy of the sedimentary dynamics and its comparison with various paleoenvironmental proxies show that the relative contributions are roughly estimated as 23%, 9%, and 68% for aeolian inputs, oceanic circulation, and the tropical Pacific zonal SST gradient, respectively, in the studied region. The relative importance of tropical processes in abyssal sedimentary dynamics highlights the possibility of the long-term influence of (sub)mesoscale eddies in the upper ocean, via regional upwelling and unique submarine topography, on the deepest part (>5,000 m) of the Central Philippine Sea, from meteorological to geological timescales. |
WOS关键词 | PARECE VELA BASIN ; BOTTOM WATER ; TECTONIC EVOLUTION ; DRIVEN CIRCULATION ; MAGNETIC MINERALS ; RADIOGENIC SR ; PACIFIC-OCEAN ; EOLIAN DUST ; TIME-SCALE ; DEEP-SEA |
资助项目 | National Natural Science Foundation of China[41888101] ; National Natural Science Foundation of China[42177422] ; National Natural Science Foundation of China[41976192] ; Strategic Priority Research Program of the Chinese Academy of Sciences[XDB40000000] ; Project of China Geological Survey[DD20191010] |
WOS研究方向 | Geology ; Oceanography ; Paleontology |
语种 | 英语 |
出版者 | AMER GEOPHYSICAL UNION |
WOS记录号 | WOS:000798637600001 |
资助机构 | National Natural Science Foundation of China ; National Natural Science Foundation of China ; Strategic Priority Research Program of the Chinese Academy of Sciences ; Strategic Priority Research Program of the Chinese Academy of Sciences ; Project of China Geological Survey ; Project of China Geological Survey ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; Strategic Priority Research Program of the Chinese Academy of Sciences ; Strategic Priority Research Program of the Chinese Academy of Sciences ; Project of China Geological Survey ; Project of China Geological Survey ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; Strategic Priority Research Program of the Chinese Academy of Sciences ; Strategic Priority Research Program of the Chinese Academy of Sciences ; Project of China Geological Survey ; Project of China Geological Survey ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; Strategic Priority Research Program of the Chinese Academy of Sciences ; Strategic Priority Research Program of the Chinese Academy of Sciences ; Project of China Geological Survey ; Project of China Geological Survey |
源URL | [http://ir.iggcas.ac.cn/handle/132A11/105947] |
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 | Hu, Bangqi |
作者单位 | 1.Pilot Natl Lab Marine Sci & Technol, Lab Marine Mineral Resources, Qingdao, Peoples R China 2.Tongji Univ, State Key Lab Marine Geol, Shanghai, Peoples R China 3.China Geol Survey, Qingdao Inst Marine Geol, Qingdao, Peoples R China 4.Univ Chinese Acad Sci, Beijing, Peoples R China 5.Chinese Acad Sci, State Key Lab Lithospher Evolut, Inst Geol & Geophys, Beijing, Peoples R China 6.China Univ Geosci, Coll Marine Sci & Technol, Wuhan, Peoples R China 7.Chinese Acad Sci, South China Sea Inst Oceanol, State Key Lab Trop Oceanog, Guangzhou, Peoples R China 8.China Geol Survey, Tianjin Ctr, Key Lab Muddy Coastal Geoenvironm, Tianjin, Peoples R China |
推荐引用方式 GB/T 7714 | Yi, Liang,Hu, Bangqi,Zhao, Jingtao,et al. Magnetostratigraphy of Abyssal Deposits in the Central Philippine Sea and Regional Sedimentary Dynamics During the Quaternary[J]. PALEOCEANOGRAPHY AND PALEOCLIMATOLOGY,2022,37(5):22. |
APA | Yi, Liang.,Hu, Bangqi.,Zhao, Jingtao.,Jiang, Xingyu.,Shu, Yeqiang.,...&Deng, Chenglong.(2022).Magnetostratigraphy of Abyssal Deposits in the Central Philippine Sea and Regional Sedimentary Dynamics During the Quaternary.PALEOCEANOGRAPHY AND PALEOCLIMATOLOGY,37(5),22. |
MLA | Yi, Liang,et al."Magnetostratigraphy of Abyssal Deposits in the Central Philippine Sea and Regional Sedimentary Dynamics During the Quaternary".PALEOCEANOGRAPHY AND PALEOCLIMATOLOGY 37.5(2022):22. |
入库方式: OAI收割
来源:地质与地球物理研究所
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