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Chronologies of sedimentary changes in the south Bohai Sea, China: constraints from luminescence and radiocarbon dating
Yi, L (Yi, Liang)[ 1,2,3 ]; Lai, ZP (Lai, Zhongping)[ 2,4 ]; Yu, HJ (Yu, Hongjun)[ 1 ]; Xu, XY (Xu, Xingyong)[ 1 ]; Su, Q (Su, Qiao)[ 1 ]; Yao, J (Yao, Jing)[ 1 ]; Wang, XL (Wang, Xulong)[ 5 ]; Shi, XF (Shi, Xuefa)[ 1 ]
2013-04-30
Source PublicationBOREAS
Volume42Issue:2Pages:267-284
Subtype期刊论文
Abstract

The alternation of terrestrial and marine deposits is an indicator of past environmental and sea-level changes. The age of deposition is usually dated by means of radiocarbon. However, radiocarbon dates of molluscan shells from coastal areas may be complicated by various sources of carbon, and problematic for deposits of 4050ka or older. Herein, we apply the Optically Stimulated Luminescence (OSL) dating method to date samples from terrestrial and marine/coastal sediments extracted from three cores in the south Bohai Sea, China. Multiple- and single-aliquot regenerative-dose procedures using OSL signals from fine-silt (411m), coarse-silt (3863m) and fine-sand (6390 or 90125m) quartz were employed to determine the equivalent dose (D e). The results showed that: (i) OSL ages from quartz of different grain sizes and different protocols are consistent with each other; (ii) for Holocene samples, most of the radiocarbon dates agree well with OSL ages; (iii) for pre-Holocene samples, radiocarbon dates cluster at 4050 14 C ka BP, whereas OSL ages are in stratigraphic order from 11ka to 176ka. Because of the self-consistency of the quartz OSL ages, the stratigraphic agreement in the three cores, and the clustering of the radiocarbon dates, we suggest that the quartz OSL ages are more reliable with respect to dating the samples from the south Bohai Sea. Finally, the four marine strata identified in the south Bohai Sea are likely to have formed during the Holocene, Marine Isotopic Stage (MIS) 35, MIS 6 and probably MIS 7, respectively.

DOI10.1111/j.1502-3885.2012.00271.x
Indexed BySCI
Language英语
Citation statistics
Document Type期刊论文
Identifierhttp://ir.ieecas.cn/handle/361006/10035
Collection现代环境研究室
Corresponding AuthorYi, L (Yi, Liang)[ 1,2,3 ]
Affiliation1.Key Laboratory of Marine Sedimentology andEnvironmental Geology, First Institute of Oceanography, State Oceanic Administration, Qingdao 266061, China;
2.State Key Laboratory of Cryosphere Sciences, Cold and Arid Regions Environment and Engineering ResearchInstitute, Chinese Academy of Sciences, Lanzhou 730000, China;
3.Department of Geology, Kent State University,Kent, OH 44242, USA;
4.Luminescence Dating Group, Qinghai Institute of Salt Lakes, Chinese Academyof Sciences, Xi’ning 810008, China;
5.Key Laboratory of Marine Sedimentology and Environmental Geology, FirstInstitute of Oceanography, State Oceanic Administration, Qingdao 266061, China;
6.State Key Laboratory of Loess and Quaternary Geology, Institute of Earth Environment,Chinese Academy of Sciences, Xi’an 710075, China
Recommended Citation
GB/T 7714
Yi, L ,Lai, ZP ,Yu, HJ ,et al. Chronologies of sedimentary changes in the south Bohai Sea, China: constraints from luminescence and radiocarbon dating[J]. BOREAS,2013,42(2):267-284.
APA Yi, L .,Lai, ZP .,Yu, HJ .,Xu, XY .,Su, Q .,...&Shi, XF .(2013).Chronologies of sedimentary changes in the south Bohai Sea, China: constraints from luminescence and radiocarbon dating.BOREAS,42(2),267-284.
MLA Yi, L ,et al."Chronologies of sedimentary changes in the south Bohai Sea, China: constraints from luminescence and radiocarbon dating".BOREAS 42.2(2013):267-284.
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