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Magnetostratigraphy of Abyssal Deposits in the Central Philippine Sea and Regional Sedimentary Dynamics During the Quaternary
Yi, Liang1; Hu, Bangqi2,3; Zhao, Jingtao2; Jiang, Xingyu4; Shu, Yeqiang5; Wang, Xingxing2,6; Guo, Jianwei2; Wang, Feifei2; Ding, Xue2; Liu, Geng7,8; Chen, Weiwei1; Li, Yibing1; Deng, Chenglong7,8
2022-05-01
Source PublicationPALEOCEANOGRAPHY AND PALEOCLIMATOLOGY
ISSN2572-4517
Volume37Issue:5Pages:22
AbstractThe 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.
Keywordmagnetostratigraphy sediment grain size sediment accumulation rate Philippine Sea mid-Pleistocene transition tropical climate processes
DOI10.1029/2021PA004365
Funding OrganizationNational 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
WOS KeywordPARECE VELA BASIN ; BOTTOM WATER ; TECTONIC EVOLUTION ; DRIVEN CIRCULATION ; MAGNETIC MINERALS ; RADIOGENIC SR ; PACIFIC-OCEAN ; EOLIAN DUST ; TIME-SCALE ; DEEP-SEA
Language英语
Funding ProjectNational 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]
Funding OrganizationNational 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
WOS Research AreaGeology ; Oceanography ; Paleontology
WOS SubjectGeosciences, Multidisciplinary ; Oceanography ; Paleontology
WOS IDWOS:000798637600001
PublisherAMER GEOPHYSICAL UNION
Citation statistics
Document Type期刊论文
Identifierhttp://ir.iggcas.ac.cn/handle/132A11/105947
Collection岩石圈演化国家重点实验室
Corresponding AuthorHu, Bangqi
Affiliation1.Tongji Univ, State Key Lab Marine Geol, Shanghai, Peoples R China
2.China Geol Survey, Qingdao Inst Marine Geol, Qingdao, Peoples R China
3.Pilot Natl Lab Marine Sci & Technol, Lab Marine Mineral Resources, Qingdao, Peoples R China
4.China Geol Survey, Tianjin Ctr, Key Lab Muddy Coastal Geoenvironm, Tianjin, Peoples R China
5.Chinese Acad Sci, South China Sea Inst Oceanol, State Key Lab Trop Oceanog, Guangzhou, Peoples R China
6.China Univ Geosci, Coll Marine Sci & Technol, Wuhan, Peoples R China
7.Chinese Acad Sci, State Key Lab Lithospher Evolut, Inst Geol & Geophys, Beijing, Peoples R China
8.Univ Chinese Acad Sci, Beijing, Peoples R China
Recommended Citation
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.
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