DOI: 10.1016/j.palaeo.2020.109597
论文题名: Glacial fluctuations over the last 3500 years reconstructed from a lake sediment record in the northern Tibetan Plateau
作者: Yan T. ; He J. ; Wang Z. ; Zhang C. ; Feng X. ; Sun X. ; Leng C. ; Zhao C.
刊名: Palaeogeography, Palaeoclimatology, Palaeoecology
ISSN: 310182
出版年: 2020
卷: 544 语种: 英语
英文关键词: Climate change
; Global warming
; Qilian Mountain
; Qiyi Glacier
; Tian'E Lake
Scopus关键词: climate change
; glacier
; glacier advance
; global warming
; Holocene
; lacustrine deposit
; Little Ice Age
; magnetic susceptibility
; reconstruction
; sediment core
; total organic carbon
; westerly
; China
; Qilian Mountains
; Qinghai-Xizang Plateau
英文摘要: Reconstructing glacial fluctuations can provide insights into glacial variations in response to climate change and can help predict future glacial changes in the context of global warming. Here, we use an ~2-yr-resolution record of inert elements derived from a sediment core from Tian'E Lake in the northern Tibetan Plateau, together with proxies for magnetic susceptibility and n-alkanes, to reconstruct fluctuations of the Qiyi Glacier over the last 3500 years. Eight major glacial advances can be identified at 1450–1250 BCE, 1100–800 BCE, 250–100 BCE and 200–300 CE, 600–700 CE, 1250–1350 CE, 1600–1750 CE, and 1850–1950 CE. These glacial advances coincided with cold intervals, such as the Neoglaciation and the Little Ice Age, suggesting often mentioned temperature controls on glacial-mass variations in the past. Moreover, due to the wet-cold climate combinations in the Westerlies-dominated areas, these intervals can also be correlated with wet conditions, as revealed by previously reported carbonate contents, total organic carbon levels and Artemisia/Amaranthaceae ratios from the same lake. These results indicate that humid environments can also contribute to glacial advances in the northern Tibetan Plateau. Our study reveals a series of high-magnitude multi-decadal to multi-centennial-scale glacial fluctuations during the late Holocene and suggests that wet conditions can also facilitate glacial advances in the Westerlies-dominated regions such as the northern Tibetan Plateau. © 2020 Elsevier B.V. Citation statistics:
资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/158382
Appears in Collections: 气候变化与战略
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作者单位: State Key Laboratory of Lake Science and Environment, Nanjing Institute of Geography and Limnology, Chinese Academy of Science, Nanjing, 210008, China; University of Chinese Academy of Sciences, Beijing, 100049, China; Key Laboratory of Western China's Environmental Systems, Ministry of Education, School of Earth and Environmental Sciences, Lanzhou University, Lanzhou, 730000, China; CAS Center for Excellence in Quaternary Science and Global Change, Xi'an, 710061, China
Recommended Citation:
Yan T.,He J.,Wang Z.,et al. Glacial fluctuations over the last 3500 years reconstructed from a lake sediment record in the northern Tibetan Plateau[J]. Palaeogeography, Palaeoclimatology, Palaeoecology,2020-01-01,544