| 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
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| 发表期刊 | GEOLOGICAL MAGAZINE
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| ISSN | 0016-7568 |
| 2020-05-01 | |
| 卷号 | 157期号:5页码:818-828 |
| 关键词 | aeolian dust palaeoproductivity major and trace element carbon cycle Pliocene-Pleistocene the Japan Sea |
| DOI | 10.1017/S0016756819000554 |
| 通讯作者 | Wan, Shiming(wanshiming@ms.qdio.ac.cn) |
| 英文摘要 | Aeolian 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. |
| 资助机构 | National Natural Science Foundation of China ; National Program on Global Change and Air-Sea Interaction ; Innovation Project ; Taishan and Aoshan Talents program ; China Postdoctoral Science Foundation |
| 收录类别 | SCI |
| 语种 | 英语 |
| 关键词[WOS] | TOTAL ORGANIC-CARBON ; DISSOLVED IRON ; DIOXIDE CONCENTRATION ; PHYTOPLANKTON BLOOM ; SEDIMENTATION-RATE ; OKINAWA TROUGH ; MIDDLE MIOCENE ; GLACIAL CYCLES ; TRACE-METALS ; OCEAN |
| 研究领域[WOS] | Geology |
| WOS记录号 | WOS:000534526500011 |
| 引用统计 | |
| 文献类型 | 期刊论文 |
| 条目标识符 | http://ir.yic.ac.cn/handle/133337/29071 |
| 专题 | 支撑部门 |
| 通讯作者 | Wan, Shiming |
| 作者单位 | 1.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 |
| 推荐引用方式 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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