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Syntectonic Sediment Recycling Controls Eolian Deposition in Eastern Asia Since similar to 8 Ma
Lu, Haijian1,2; Malusa, Marco G.3; Zhang, Zhiyong4; Guo, Licheng4; Shi, Xuhua5; Ye, Jiacan1; Sang, Shengping1; Xiong, Shangfa4; Pan, Jiawei1,2; Li, Haibing1,2
2022-02-16
Source PublicationGEOPHYSICAL RESEARCH LETTERS
ISSN0094-8276
Volume49Issue:3Pages:11
AbstractGlobal cooling and/or Tibetan Plateau uplift have long been regarded as the principal drivers of late Cenozoic central Asian aridification and the resulting widespread accumulation of eolian deposits in eastern Asia. However, these two factors are unable to form large source areas of fine-grained sediments enhancing eolian deposition synchronously from northern Tibet to North Pacific. Here we provide magnetostratigraphic and detrital apatite fission-track evidence for a major sediment recycling event in northern Tibet at similar to 8 Ma, coeval with a sudden increase in eolian deposition, which we ascribe to syntectonic erosion of uplifted friable fluvio-lacustrine sediments and selective entrainment by the westerly winds during basin deformation. Our results emphasize the importance of widespread and persistent occurrence of fine-grained sediments along the pathway of westerlies to produce voluminous dust deposits. These findings suggest that the onset of eolian deposition may not be directly related to global cooling or uplift of mountain ranges. Plain Language Summary A proper analysis of tectonic events and sedimentological processes is key to understanding the controlling factors of enhanced eolian deposition documented synchronously from northern Tibet to the North Pacific since similar to 8 Ma. In addition to the hypothesized sizable inland deserts, potential dust sources have been considered to be piedmont fluvial sediments and dry lake sediments in northern Tibet and central Asia. However, almost all these suggestions fail to explain the rapid expansion of eolian deposition in the Chinese Loess Plateau, which required a substantial increase in the availability of fine-grained silts and clays in the source areas. Here we confirm a major sediment recycling event favored by basin deformation in northern Tibet through an integrated analysis of magnetostratigraphy and detrital apatite fission tracks. This event led to the uplift of a large amount of friable fluvio-lacustrine sediments along the fold-thrust belts of northern Tibet, which coincided with this sudden increase of eolian deposition at similar to 8 Ma. We suggest a causal link, favored by the action of the westerly winds, between uplift of basin strata in northern Tibet, sediment recycling and the substantial expansion of eolian deposition in eastern Asia, which gains support from multi-proxy analyses of fluvio-lacustrine sedimentary successions.
DOI10.1029/2021GL096789
Funding OrganizationSecond Tibetan Plateau Scientific Expedition and research program ; Second Tibetan Plateau Scientific Expedition and research program ; key special project for introduced talents team of Southern Marine Science and Engineering Guangdong Laboratory (Guangzhou) ; key special project for introduced talents team of Southern Marine Science and Engineering Guangdong Laboratory (Guangzhou) ; China Geological Survey ; China Geological Survey ; Second Tibetan Plateau Scientific Expedition and research program ; Second Tibetan Plateau Scientific Expedition and research program ; key special project for introduced talents team of Southern Marine Science and Engineering Guangdong Laboratory (Guangzhou) ; key special project for introduced talents team of Southern Marine Science and Engineering Guangdong Laboratory (Guangzhou) ; China Geological Survey ; China Geological Survey ; Second Tibetan Plateau Scientific Expedition and research program ; Second Tibetan Plateau Scientific Expedition and research program ; key special project for introduced talents team of Southern Marine Science and Engineering Guangdong Laboratory (Guangzhou) ; key special project for introduced talents team of Southern Marine Science and Engineering Guangdong Laboratory (Guangzhou) ; China Geological Survey ; China Geological Survey ; Second Tibetan Plateau Scientific Expedition and research program ; Second Tibetan Plateau Scientific Expedition and research program ; key special project for introduced talents team of Southern Marine Science and Engineering Guangdong Laboratory (Guangzhou) ; key special project for introduced talents team of Southern Marine Science and Engineering Guangdong Laboratory (Guangzhou) ; China Geological Survey ; China Geological Survey
WOS KeywordNORTHERN TIBETAN PLATEAU ; CHINESE LOESS PLATEAU ; LATE CENOZOIC DEFORMATION ; QAIDAM BASIN ; TECTONIC EVOLUTION ; CLIMATE-CHANGE ; FISSION-TRACK ; GROWTH ; UPLIFT ; RECORDS
Language英语
Funding ProjectSecond Tibetan Plateau Scientific Expedition and research program[2019QZKK0901] ; key special project for introduced talents team of Southern Marine Science and Engineering Guangdong Laboratory (Guangzhou)[GML2019ZD0201] ; China Geological Survey[DD20190059]
Funding OrganizationSecond Tibetan Plateau Scientific Expedition and research program ; Second Tibetan Plateau Scientific Expedition and research program ; key special project for introduced talents team of Southern Marine Science and Engineering Guangdong Laboratory (Guangzhou) ; key special project for introduced talents team of Southern Marine Science and Engineering Guangdong Laboratory (Guangzhou) ; China Geological Survey ; China Geological Survey ; Second Tibetan Plateau Scientific Expedition and research program ; Second Tibetan Plateau Scientific Expedition and research program ; key special project for introduced talents team of Southern Marine Science and Engineering Guangdong Laboratory (Guangzhou) ; key special project for introduced talents team of Southern Marine Science and Engineering Guangdong Laboratory (Guangzhou) ; China Geological Survey ; China Geological Survey ; Second Tibetan Plateau Scientific Expedition and research program ; Second Tibetan Plateau Scientific Expedition and research program ; key special project for introduced talents team of Southern Marine Science and Engineering Guangdong Laboratory (Guangzhou) ; key special project for introduced talents team of Southern Marine Science and Engineering Guangdong Laboratory (Guangzhou) ; China Geological Survey ; China Geological Survey ; Second Tibetan Plateau Scientific Expedition and research program ; Second Tibetan Plateau Scientific Expedition and research program ; key special project for introduced talents team of Southern Marine Science and Engineering Guangdong Laboratory (Guangzhou) ; key special project for introduced talents team of Southern Marine Science and Engineering Guangdong Laboratory (Guangzhou) ; China Geological Survey ; China Geological Survey
WOS Research AreaGeology
WOS SubjectGeosciences, Multidisciplinary
WOS IDWOS:000759485200012
PublisherAMER GEOPHYSICAL UNION
Citation statistics
Document Type期刊论文
Identifierhttp://ir.iggcas.ac.cn/handle/132A11/104957
Collection中国科学院地质与地球物理研究所
Corresponding AuthorLu, Haijian
Affiliation1.Chinese Acad Geol Sci, Inst Geol, Key Lab Deep Earth Dynam, Beijing, Peoples R China
2.Southern Marine Sci & Engn Guangdong Lab, Guangzhou, Peoples R China
3.Univ Milano Bicocca, Milan, Italy
4.Chinese Acad Sci, Inst Geol & Geophys, Beijing, Peoples R China
5.Zhejiang Univ, Sch Earth Sci, Hangzhou, Peoples R China
Recommended Citation
GB/T 7714
Lu, Haijian,Malusa, Marco G.,Zhang, Zhiyong,et al. Syntectonic Sediment Recycling Controls Eolian Deposition in Eastern Asia Since similar to 8 Ma[J]. GEOPHYSICAL RESEARCH LETTERS,2022,49(3):11.
APA Lu, Haijian.,Malusa, Marco G..,Zhang, Zhiyong.,Guo, Licheng.,Shi, Xuhua.,...&Li, Haibing.(2022).Syntectonic Sediment Recycling Controls Eolian Deposition in Eastern Asia Since similar to 8 Ma.GEOPHYSICAL RESEARCH LETTERS,49(3),11.
MLA Lu, Haijian,et al."Syntectonic Sediment Recycling Controls Eolian Deposition in Eastern Asia Since similar to 8 Ma".GEOPHYSICAL RESEARCH LETTERS 49.3(2022):11.
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