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A Case Study Using Be-10-Al-26 Exposure Dating at the Xi'an AMS Center
Zhang, Li1,2; Wu, Zhenkun1,2; Chang, Hong1; Li, Ming1,2; Dong, Guocheng1,2; Fu, Yunchong1,2; Zhao, Guoqing1,2; Zhou, Weijian1,2,3
2016-03-01
发表期刊RADIOCARBON
卷号58期号:1页码:193-203
文章类型Article
摘要Exposure age dating using in situ(10)Be and Al-26 is a very useful technique for dating fluvial terraces. This is especially true in semiarid regions where other methods suffer from a paucity of suitable dating materials. This article describes sample preparation procedures and analytical benchmarks established at the Xi'an Accelerator Mass Spectrometry (AMS) Center for the study of in situ(10)Be and Al-26. Four intercomparison samples were analyzed in the study, using an improved sample preparation method. The exposure age results are shown to be in good agreement with published data, and demonstrate the reliability of the dating method. This article also presents new Be-10 and Al-26 results from quartz samples collected from a series of fluvial terraces from Guanshan River, along the Qilian Shan, northeastern Tibetan Plateau. The ages of three fluvial terraces from the Jinfosi site are shown to be (56.4 +/- 5.3) ka for T3, (10.7 +/- 1.0) ka for T2, and (7.2 +/- 1.0) ka for T1. The dating results are consistent with published data from the same region (Be-10, C-14, and optically stimulated luminescence dating methods). A comparison of high-resolution climate records with age constraints for the terrace formation shows a close relationship between terrace formation and climate change.
关键词Be-10-al-26 Exposure Dating Fluvial Terraces Xi'an Ams Qilian Shan
WOS标题词Science & Technology ; Physical Sciences
DOI10.1017/RDC.2015.20
关键词[WOS]COSMOGENIC ISOTOPE ANALYSIS ; FLUVIAL TERRACES ; SAMPLE PREPARATION ; TIBETAN PLATEAU ; BE-10 ; QUARTZ ; RATES ; RIVER ; NUCLIDES ; CLIMATE
收录类别SCI
语种英语
WOS研究方向Geochemistry & Geophysics
WOS类目Geochemistry & Geophysics
WOS记录号WOS:000372829700017
引用统计
被引频次:3[WOS]   [WOS记录]     [WOS相关记录]
文献类型期刊论文
条目标识符http://ir.ieecas.cn/handle/361006/5747
专题古环境研究室
作者单位1.Chinese Acad Sci, Inst Earth Environm, State Key Lab Loess & Quaternary Geol, Xian 710061, Peoples R China
2.Xian AMS Ctr, Shaanxi Key Lab Accelerator Mass Spectrometry Tec, Xian 710061, Peoples R China
3.Xi An Jiao Tong Univ, Xian 710049, Peoples R China
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Zhang, Li,Wu, Zhenkun,Chang, Hong,et al. A Case Study Using Be-10-Al-26 Exposure Dating at the Xi'an AMS Center[J]. RADIOCARBON,2016,58(1):193-203.
APA Zhang, Li.,Wu, Zhenkun.,Chang, Hong.,Li, Ming.,Dong, Guocheng.,...&Zhou, Weijian.(2016).A Case Study Using Be-10-Al-26 Exposure Dating at the Xi'an AMS Center.RADIOCARBON,58(1),193-203.
MLA Zhang, Li,et al."A Case Study Using Be-10-Al-26 Exposure Dating at the Xi'an AMS Center".RADIOCARBON 58.1(2016):193-203.
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