Increased dust deposition in the Parece Vela Basin since the mid- Pleistocene inferred from radiogenic Sr and Nd isotopes
文献类型：期刊论文
| 作者 | Jiang, Fuqing1,2; Zhu, Xiao1,3; Li, Tiegang2,4 ; Zhou, Yu5; Xiong, Zhifang2,4; Feng, Xuguang1,3; Yin, Xuebo1; Li, Anchun1
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| 刊名 | GLOBAL AND PLANETARY CHANGE
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| 出版日期 | 2019-02-01 |
| 卷号 | 173页码:83-95 |
| 关键词 | Asian dust Sr and Nd isotopes Parece Vela Basin Mid-Pleistocene transition |
| ISSN号 | 0921-8181 |
| DOI | 10.1016/j.gloplacha.2018.12.011 |
| 通讯作者 | Jiang, Fuqing(fqjiang@qdio.ac.cn) |
| 英文摘要 | Eolian dust deposition is crucial to paleoclimate reconstructions of dust source areas and may have played an important role in the climate during the mid-Pleistocene transition (MPT). Here, we present the radiogenic Sr and Nd isotopic composition and excess barium (Ba-xs) of a sediment core that was recovered from the Parece Vela Basin (PVB) in the northwestern Pacific. The new record indicates that these detrital sediments are primarily composed of dust from western and central Chinese deserts and volcanic materials from the islands in and around the PVB. A two end-member Sr isotope model was applied to distinguish Asian dust from volcanic materials and to reconstruct the mass accumulation rates (MARs) of dust over the last 2.1 Myr. Starting at similar to 1.2 Myr, the dust MARs doubled relative to those in the Early Pleistocene, which was coupled with the frequent congruence of minimum eccentricity and low obliquity. We argue that the congruent minimum eccentricity and low obliquity may have triggered the climate change before and during the MPT and resulted in the aridity of East Asia and increased dust input. The coupling of dust MAR, Ba-xs, MAR and atmospheric CO2 concentration and their rapid increase since the MPT strongly suggest that the internal positive feedback of dust input might be another mechanism behind dust input to the PVB since the MPT. |
| 资助项目 | National Natural Science Foundation of China[41776065] ; National Natural Science Foundation of China[41576050] ; National Natural Science Foundation of China[41230959] ; National Natural Science Foundation of China[41576051] ; National Program on Global Change and Air-Sea Interaction[GASI-GEOGE-02] ; National Program on Global Change and Air-Sea Interaction[GASI-GEOGE-04] ; Strategic Priority Research Program of the Chinese Academy of Sciences[XDA11030302] ; Qingdao National Laboratory for Marine Science and Technology[QNLM2016ORP0205] |
| WOS研究方向 | Physical Geography ; Geology |
| 语种 | 英语 |
| WOS记录号 | WOS:000457512400009 |
| 出版者 | ELSEVIER SCIENCE BV |
| 源URL | [http://ir.qdio.ac.cn/handle/337002/160894]  |
| 专题 | 海洋研究所_海洋地质与环境重点实验室 |
| 通讯作者 | Jiang, Fuqing |
| 作者单位 | 1.Chinese Acad Sci, Key Lab Marine Geol & Environm, Inst Oceanol, Qingdao, Peoples R China 2.Qingdao Natl Lab Marine Sci & Technol, Lab Marine Geol, Qingdao, Peoples R China 3.Univ Chinese Acad Sci, Beijing, Peoples R China 4.State Ocean Adm, Key Lab Marine Sedimentol & Environm Geol, Inst Oceanog 1, Qingdao 266061, Peoples R China 5.Sichuan Inst Geol Engn Invest, Chengdu 610072, Sichuan, Peoples R China |
| 推荐引用方式 GB/T 7714 | Jiang, Fuqing,Zhu, Xiao,Li, Tiegang,et al. Increased dust deposition in the Parece Vela Basin since the mid- Pleistocene inferred from radiogenic Sr and Nd isotopes[J]. GLOBAL AND PLANETARY CHANGE,2019,173:83-95. |
| APA | Jiang, Fuqing.,Zhu, Xiao.,Li, Tiegang.,Zhou, Yu.,Xiong, Zhifang.,...&Li, Anchun.(2019).Increased dust deposition in the Parece Vela Basin since the mid- Pleistocene inferred from radiogenic Sr and Nd isotopes.GLOBAL AND PLANETARY CHANGE,173,83-95. |
| MLA | Jiang, Fuqing,et al."Increased dust deposition in the Parece Vela Basin since the mid- Pleistocene inferred from radiogenic Sr and Nd isotopes".GLOBAL AND PLANETARY CHANGE 173(2019):83-95. |
入库方式： OAI收割
来源：海洋研究所
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