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OSL chronology of a sedimentary sequence from the inner-shelf of the East China Sea and its implication on post-glacial deposition history
Wang, Yong1; Long, Hao1; Yi, Liang2; Yang, Linhai3; Ye, Xingyong4; Shen, Ji1
2015-10-01
Source PublicationQUATERNARY GEOCHRONOLOGY
Volume30Issue:1Pages:282-287
AbstractSedimentary records from the inner-shelf of the East China Sea (ECS) are unique for the reconstruction of post-glacial palaeoclimate and sea-level changes. So far, the chronology of sediment succession from this region has mainly been based on radiocarbon dating, which might be problematic due to reworked deposition or old carbon contamination. In this study we tested the applicability of optically stimulated luminescence (OSL) dating to a drilling core (ECS-DZ1) taken from the northern ESC. A total of 20 OSL samples and two radiocarbon samples were collected from the upper 58 m of this core. The results indicate the likely sufficient reset of OSL signal of fine-grained (4-11 mu m) quartz before burial, and thus reliable chronology for the studied core sediments. For one sample, however, the extracted coarse-grained (100-200 mu m) quartz overestimated the deposition age significantly, presumably resulting from partial bleaching prior to deposition. The fine-grained quartz ages are generally consistent with the stratigraphical order, and the reliability of these OSL ages are further validated by two selective robust C-14 dates. The chronological framework of core ECS-DZ1 reveals striking sedimentation-rate changes. By comparison with other chronostratigraphical records, we infer that post-glacial deposition history (since similar to 15 ka) of the study site is likely related to regional sea-level rise and delta-estuary environment evolution, as well as strengthened human activities and/or coastal currents. (C) 2015 Elsevier B.V. All rights reserved.
SubtypeArticle
KeywordShelf And Coastal Sediment East China Sea Osl Dating Sea-level Change The Late Glacial
WOS HeadingsScience & Technology ; Physical Sciences
DOI10.1016/j.quageo.2015.06.005
URL查看原文
Indexed BySCI
Language英语
WOS KeywordLEVEL RISE ; DOSE-RATES ; LUMINESCENCE ; SINGLE ; QUARTZ ; GRAINS ; DELTA ; CONSTRAINTS ; COASTAL ; ESR
WOS SubjectGeography, Physical ; Geosciences, Multidisciplinary
WOS IDWOS:000366538200025
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Cited Times:9[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Version出版稿
Identifierhttp://ir.idsse.ac.cn/handle/183446/1222
Collection深海科学研究部_深海地球物理与资源研究室
Affiliation1.Chinese Acad Sci NIGLAS, Nanjing Inst Geog & Limnol, State Key Lab Lake Sci & Environm, Nanjing 210008, Jiangsu, Peoples R China
2.Chinese Acad Sci, Sanya Inst Deep Sea Sci & Engn, MSG Grp, Sanya 572000, Peoples R China
3.Chinese Acad Sci, CAREERI, Lanzhou 730000, Peoples R China
4.Zhejiang Inst Hydrogeol & Engn Geol, Ningbo 315012, Zhejiang, Peoples R China
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GB/T 7714
Wang, Yong,Long, Hao,Yi, Liang,et al. OSL chronology of a sedimentary sequence from the inner-shelf of the East China Sea and its implication on post-glacial deposition history[J]. QUATERNARY GEOCHRONOLOGY,2015,30(1):282-287.
APA Wang, Yong,Long, Hao,Yi, Liang,Yang, Linhai,Ye, Xingyong,&Shen, Ji.(2015).OSL chronology of a sedimentary sequence from the inner-shelf of the East China Sea and its implication on post-glacial deposition history.QUATERNARY GEOCHRONOLOGY,30(1),282-287.
MLA Wang, Yong,et al."OSL chronology of a sedimentary sequence from the inner-shelf of the East China Sea and its implication on post-glacial deposition history".QUATERNARY GEOCHRONOLOGY 30.1(2015):282-287.
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