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Cosmogenic Be-10 surface exposure dating of 'Little Ice Age' glacial events in the Mount Jaggang area, central Tibet
Dong, Guocheng1,2; Zhou, Weijian1,2,3; Yi, Chaolu4,5; Zhang, Li1,2; Li, Ming1,2; Fu, Yunchong1,2; Zhang, Qian4
2017-10-01
发表期刊HOLOCENE
卷号27期号:10页码:1516-1525
文章类型Article
摘要The timing and extent of 'Little Ice Age' (LIA) glacial advances on the Tibetan Plateau (TP) are critical for understanding climate during the past millennium. However, the lack of LIA chronologies in central Tibet makes it difficult to fully understand the nature of LIA throughout the TP. In this study, two presumed LIA moraines in the east of Mount Jaggang, Xainza range, the central TP, were examined and dated using Be-10 surface exposure dating. Eight boulders from the two moraines yielded apparent 10Be exposure-ages ranging from 41 +/- 31 to 529 +/- 130 years. These Be-10 exposure-ages indicate that glaciers advanced at least once in the Mount Jaggang area during the LIA. A relatively extensive glacial advance occurred around 267 +/- 36 years, a relatively humid period as indicated by proxy data from lake sediments in the central TP. A glacial standstill might have occurred around 151 +/- 36 years. The two LIA glacial events are comparable with those across the TP. However, much more efforts should be made on dating of LIA moraines in the Mount Jaggang area to elucidate the relationships between glacial advances and climate changes during the LIA.
关键词Be-10 Surface Exposure Dating Central Tibet Glacial Advances 'little Ice Age' Mount Jaggang Xainza Range
WOS标题词Science & Technology ; Physical Sciences
DOI10.1177/0959683617693895
关键词[WOS]NORTHERN-HEMISPHERE TEMPERATURES ; EQUILIBRIUM-LINE ALTITUDES ; EASTERN TIAN-SHAN ; QUATERNARY GLACIATION ; AIR-TEMPERATURE ; TREE-RINGS ; PLATEAU ; CLIMATE ; NUCLIDE ; CHINA
收录类别SCI
语种英语
WOS研究方向Physical Geography ; Geology
WOS类目Geography, Physical ; Geosciences, Multidisciplinary
WOS记录号WOS:000412720200008
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被引频次:25[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/361006/5415
专题加速器质谱中心
作者单位1.Chinese Acad Sci, Inst Earth Environm, State Key Lab Loess & Quaternary Geol, Xian 710061, Shaanxi, Peoples R China
2.Xian AMS Ctr, Xian, Shaanxi, Peoples R China
3.Beijing Normal Univ, Beijing, Peoples R China
4.Chinese Acad Sci, Key Lab Tibetan Environm Changes & Land Surface P, Beijing, Peoples R China
5.Chinese Acad Sci, Excellence Ctr Tibetan Plateau Res, Beijing, Peoples R China
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Dong, Guocheng,Zhou, Weijian,Yi, Chaolu,et al. Cosmogenic Be-10 surface exposure dating of 'Little Ice Age' glacial events in the Mount Jaggang area, central Tibet[J]. HOLOCENE,2017,27(10):1516-1525.
APA Dong, Guocheng.,Zhou, Weijian.,Yi, Chaolu.,Zhang, Li.,Li, Ming.,...&Zhang, Qian.(2017).Cosmogenic Be-10 surface exposure dating of 'Little Ice Age' glacial events in the Mount Jaggang area, central Tibet.HOLOCENE,27(10),1516-1525.
MLA Dong, Guocheng,et al."Cosmogenic Be-10 surface exposure dating of 'Little Ice Age' glacial events in the Mount Jaggang area, central Tibet".HOLOCENE 27.10(2017):1516-1525.
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