Arid
DOI10.1016/j.quageo.2015.02.013
High resolution OSL and post-IR IRSL dating of the last interglacial-glacial cycle at the Sanbahuo loess site (northeastern China)
Yi, Shuangwen1,2; Buylaert, Jan-Pieter2,3; Murray, Andrew S.2; Thiel, Christine2,3,4; Zeng, Lin1; Lu, Huayu1
通讯作者Yi, Shuangwen
来源期刊QUATERNARY GEOCHRONOLOGY
ISSN1871-1014
EISSN1878-0350
出版年2015
卷号30页码:200-206
英文摘要

Northeastern China is located in the East Asian monsoon region; it is sensitive to both high and low latitude global climate systems. Loess deposits in the region have considerable potential as sensitive archives of past climate changes. However, research into loess deposition and climate change in this region is restricted by the lack of independent age control. In this study, coarse-grained quartz SAR OSL and K-feldspar post-IR infrared (IR) stimulated luminescence (post-IR IRSL; pIRIR(290)) methods have been used to date the Sanbahuo loess site in northeastern China. The quartz OSL characteristics are satisfactory. The measured pIRIR(290) D-e’s do not vary significantly with IR stimulation temperatures between 50 degrees C and 260 degrees C; a first IR stimulation temperature of 200 degrees C was adopted. Dose recovery tests were performed by adding different laboratory doses to both laboratory bleached (300 h SOL2) samples and natural samples; the results are satisfactory up to similar to 800 Gy. Resulting quartz OSL and feldspar pIRIR(290) ages are in good agreement at least back to similar to 44 ka; beyond this feldspar pIRIR(290) ages are older. The feldspar ages are consistent with the expected age of the S1 palaeosol (MIS 5). There appears to have been a period of fast loess deposition at similar to 62 ka, perhaps indicative of winter monsoon intensification with a very cold and dry climate that lead to a serious desertification of dunefields in northeastern China. (C) 2015 Elsevier B.V. All rights reserved.


英文关键词Northeastern China Loess Quartz OSL Post-IR IRSL
类型Article
语种英语
国家Peoples R China ; Denmark ; Germany
收录类别SCI-E
WOS记录号WOS:000366538200012
WOS关键词OPTICALLY STIMULATED LUMINESCENCE ; ANOMALOUS FADING CORRECTION ; K-FELDSPAR ; TT-OSL ; SEDIMENTS ; PROTOCOL ; DEPOSITS ; QUARTZ ; PLATEAU ; CLIMATE
WOS类目Geography, Physical ; Geosciences, Multidisciplinary
WOS研究方向Physical Geography ; Geology
来源机构南京大学
资源类型期刊论文
条目标识符http://119.78.100.177/qdio/handle/2XILL650/189971
作者单位1.Nanjing Univ, Sch Geog & Oceanog Sci, Nanjing 210023, Jiangsu, Peoples R China;
2.Aarhus Univ, Nord Lab Luminescence Dating, Dept Geosci, DK-4000 Roskilde, Denmark;
3.Tech Univ Denmark, Ctr Nucl Technol, DK-4000 Roskilde, Denmark;
4.Leibniz Inst Appl Geophys, Geochronol & Isotope Hydrol S3, Hannover, Germany
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GB/T 7714
Yi, Shuangwen,Buylaert, Jan-Pieter,Murray, Andrew S.,et al. High resolution OSL and post-IR IRSL dating of the last interglacial-glacial cycle at the Sanbahuo loess site (northeastern China)[J]. 南京大学,2015,30:200-206.
APA Yi, Shuangwen,Buylaert, Jan-Pieter,Murray, Andrew S.,Thiel, Christine,Zeng, Lin,&Lu, Huayu.(2015).High resolution OSL and post-IR IRSL dating of the last interglacial-glacial cycle at the Sanbahuo loess site (northeastern China).QUATERNARY GEOCHRONOLOGY,30,200-206.
MLA Yi, Shuangwen,et al."High resolution OSL and post-IR IRSL dating of the last interglacial-glacial cycle at the Sanbahuo loess site (northeastern China)".QUATERNARY GEOCHRONOLOGY 30(2015):200-206.
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