IOCAS-IR  > 海洋地质与环境重点实验室
Increased dust deposition in the Parece Vela Basin since the mid- Pleistocene inferred from radiogenic Sr and Nd isotopes
Jiang, Fuqing1,2; Zhu, Xiao1,3; Li, Tiegang2,4; Zhou, Yu5; Xiong, Zhifang2,4; Feng, Xuguang1,3; Yin, Xuebo1; Li, Anchun1
2019-02-01
Source PublicationGLOBAL AND PLANETARY CHANGE
ISSN0921-8181
Volume173Pages:83-95
Corresponding AuthorJiang, Fuqing(fqjiang@qdio.ac.cn)
AbstractEolian 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.
KeywordAsian dust Sr and Nd isotopes Parece Vela Basin Mid-Pleistocene transition
DOI10.1016/j.gloplacha.2018.12.011
Indexed BySCI
Language英语
Funding ProjectNational 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 Research AreaPhysical Geography ; Geology
WOS SubjectGeography, Physical ; Geosciences, Multidisciplinary
WOS IDWOS:000457512400009
PublisherELSEVIER SCIENCE BV
Citation statistics
Document Type期刊论文
Identifierhttp://ir.qdio.ac.cn/handle/337002/160895
Collection海洋地质与环境重点实验室
Corresponding AuthorJiang, Fuqing
Affiliation1.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
First Author AffilicationInstitute of Oceanology, Chinese Academy of Sciences
Corresponding Author AffilicationInstitute of Oceanology, Chinese Academy of Sciences
Recommended Citation
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.
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