A combined luminescence and radiocarbon dating study of the Ili loess, Central Asia | |
Song, YG (Song, Yougui)[1]; Li, CX (Li, Chuanxiang)[1]; Zhao, JD (Zhao, Jingdong)[2]; Cheng, P (Cheng, Peng)[1]; Zeng, MX (Zeng, Mengxiu)[1] | |
2012-07-31 | |
发表期刊 | QUATERNARY GEOCHRONOLOGY |
卷号 | 10期号:SI页码:2-7 |
文章类型 | 期刊论文 |
摘要 | Similar to the loess in the Chinese Loess Plateau (CLP), the loess deposits in the Hi basin of Central Asia arid area play an important role in understanding the climate and environmental changes. However, in contrast to the intensively investigated loess deposits in the CLP, the Ili loess is still insufficiently known and poorly understood. The geochronology study of the Ili loess remains controversial. In order to examine the potential of optically stimulated luminescence (OSL) dating for the Ili loess, we carry out a combined luminescence and radiocarbon dating study on a 6.9 m loess section in the south margin of the Ili basin. Polymineral fine grains were investigated by post infrared (IR) OSL using a Multiple-Aliquot Regenerative-dose (MAR) protocol. Radiocarbon dating of organic carbon were carried in a 3 Megavolt (MV) multi-element Accelerator Mass Spectrometry (AMS). The results indicate that the OSL ages are in agreement with the observed stratigraphy in the field, which is well correlated with that of the CLP, but the AMS C-14 ages are much younger than the OSL and assumed stratigraphical ages. Thus, the OSL dating technique may provide an absolute chronology in this loess section. Further methodological approaches and more samples analysis will lead to the improvement of this chronology for high-resolution paleoclimatic interpretation. |
关键词 | Luminescence Dating Radiocarbon Dating Ili Loess Central Asia |
DOI | 10.1016/j.quageo.2012.04.005 |
收录类别 | SCI ; CPCI |
语种 | 英语 |
引用统计 | |
文献类型 | 期刊论文 |
条目标识符 | http://ir.ieecas.cn/handle/361006/10107 |
专题 | 古环境研究室 |
通讯作者 | Song, YG (Song, Yougui)[1] |
作者单位 | 1.State Key Laboratory of Loess and Quaternary Geology, Institute of Earth Environment, Chinese Academy of Sciences, 10 Fenghui Nan Road, Xi’an 710075, China; 2.State Key laboratory of Cryospheric Sciences, Cold and Arid Regions Environmental and Engineering Research Institute, Chinese Academy of Sciences, Lanzhou 730000, China |
推荐引用方式 GB/T 7714 | Song, YG ,Li, CX ,Zhao, JD ,et al. A combined luminescence and radiocarbon dating study of the Ili loess, Central Asia[J]. QUATERNARY GEOCHRONOLOGY,2012,10(SI):2-7. |
APA | Song, YG ,Li, CX ,Zhao, JD ,Cheng, P ,&Zeng, MX .(2012).A combined luminescence and radiocarbon dating study of the Ili loess, Central Asia.QUATERNARY GEOCHRONOLOGY,10(SI),2-7. |
MLA | Song, YG ,et al."A combined luminescence and radiocarbon dating study of the Ili loess, Central Asia".QUATERNARY GEOCHRONOLOGY 10.SI(2012):2-7. |
条目包含的文件 | ||||||
文件名称/大小 | 文献类型 | 版本类型 | 开放类型 | 使用许可 | ||
A combined luminesce(611KB) | 期刊论文 | 作者接受稿 | 开放获取 | CC BY-NC-SA | 请求全文 |
除非特别说明,本系统中所有内容都受版权保护,并保留所有权利。
修改评论