IOCAS-IR  > 海洋地质与环境重点实验室
Links between iron supply from Asian dust and marine productivity in the Japan Sea since four million years ago
Zhai, Lina1; Wan, Shiming1,2,3; Tada, Ryuji4; Zhao, Debo1; Shi, Xuefa2,5; Yin, Xuebo1; Tan, Yang6; Li, Anchun1
2020-05-01
Source PublicationGEOLOGICAL MAGAZINE
ISSN0016-7568
Volume157Issue:5Pages:818-828
Corresponding AuthorWan, Shiming(wanshiming@ms.qdio.ac.cn)
AbstractAeolian dust input exerts significant influence on oceanic biogeochemical cycles and further potentially controls atmospheric CO2 concentrations. However, the possible link between long-term aeolian dust supply and primary productivity in the western North Pacific remains poorly understood. Here, we present a comprehensive study of major and trace elements and total organic carbon (TOC) concentrations of sediments from Integrated Ocean Drilling Program (IODP) Site U1430 in the southern Japan Sea, in order to reconstruct oceanic palaeoproductivity evolution and test its possible link to Asian dust input since 4 Ma. Palaeoproductivity proxies indicate remarkable increases in productivity at similar to 3-2 Ma followed by high-frequency oscillations in productivity since 1.2 Ma. We suggest that higher dust-derived iron supply from Central Asia at 3-2 Ma, which was likely driven by the growth of the Northern Hemisphere ice sheets, could account for enhanced primary productivity and export production in the Japan Sea. Such increased oceanic palaeoproductivity could enhance organic carbon burial, which might contribute to the decrease in atmospheric CO2 concentrations, and provide a positive feedback to the global cooling. However, the Tsushima Warm Current (TSWC) intrusion via the southern Tsushima Strait, which was controlled by glacioeustatic sea level changes, has been the principal cause of the rapid changes in primary productivity and benthic redox condition since 1.2 Ma, regardless of continuously increased Asian dust input.
Keywordaeolian dust palaeoproductivity major and trace element carbon cycle Pliocene-Pleistocene the Japan Sea
DOI10.1017/S0016756819000554
Indexed BySCI
Language英语
Funding ProjectNational Natural Science Foundation of China[41622603] ; National Natural Science Foundation of China[41806058 41576034] ; National Natural Science Foundation of China[U1606401] ; National Program on Global Change and Air-Sea Interaction[GASI-GEOGE-03] ; Innovation Project[2016ASKJ13] ; Innovation Project[MGQNLM-TD201805] ; Taishan and Aoshan Talents program[2017ASTCP-ES01] ; China Postdoctoral Science Foundation[2018M632729]
WOS Research AreaGeology
WOS SubjectGeosciences, Multidisciplinary
WOS IDWOS:000534526500011
PublisherCAMBRIDGE UNIV PRESS
Citation statistics
Document Type期刊论文
Identifierhttp://ir.qdio.ac.cn/handle/337002/167561
Collection海洋地质与环境重点实验室
Corresponding AuthorWan, Shiming
Affiliation1.Chinese Acad Sci, Inst Oceanol, Key Lab Marine Geol & Environm, Qingdao 266071, Peoples R China
2.Qingdao Natl Lab Marine Sci & Technol, Lab Marine Geol, Qingdao 266061, Peoples R China
3.CAS Ctr Excellence Quaternary Sci & Global Change, Xian 710061, Peoples R China
4.Univ Tokyo, Dept Earth & Planetary Sci, Tokyo 1130033, Japan
5.Minist Nat Resources, Key Lab Marine Sedimentoi & Environm Geol, Inst Oceanog 1, Qingdao 266061, Peoples R China
6.Chinese Acad Sci, Yantai Inst Coastal Zone Res, Yantai 264003, Peoples R China
First Author AffilicationInstitute of Oceanology, Chinese Academy of Sciences
Corresponding Author AffilicationInstitute of Oceanology, Chinese Academy of Sciences
Recommended Citation
GB/T 7714
Zhai, Lina,Wan, Shiming,Tada, Ryuji,et al. Links between iron supply from Asian dust and marine productivity in the Japan Sea since four million years ago[J]. GEOLOGICAL MAGAZINE,2020,157(5):818-828.
APA Zhai, Lina.,Wan, Shiming.,Tada, Ryuji.,Zhao, Debo.,Shi, Xuefa.,...&Li, Anchun.(2020).Links between iron supply from Asian dust and marine productivity in the Japan Sea since four million years ago.GEOLOGICAL MAGAZINE,157(5),818-828.
MLA Zhai, Lina,et al."Links between iron supply from Asian dust and marine productivity in the Japan Sea since four million years ago".GEOLOGICAL MAGAZINE 157.5(2020):818-828.
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