气候变化领域集成服务门户(CCPortal): Glacial activity reflected in a continuous lacustrine record since the early Holocene from the proglacial Laigu Lake on the southeastern Tibetan Plateau

CCPortal

DOI	10.1016/j.palaeo.2016.05.019
	Glacial activity reflected in a continuous lacustrine record since the early Holocene from the proglacial Laigu Lake on the southeastern Tibetan Plateau
	Huang, Lei; Zhu, Liping; Wang, Junbo; Ju, Jianting; Wang, Yong; Zhang, Jifeng; Yang, Ruimin
通讯作者	Huang, L ; Zhu, LP (通讯作者)
发表日期	2016
ISSN	0031-0182
EISSN	1872-616X
起始页码	37
结束页码	45
卷号	456
英文摘要	The southeastern Tibetan Plateau is an important area of monsoonal maritime glaciation, and it serves as a watershed for several major Asian rivers, including the Brahmaputra River and the Lantsang River. Glacial activity is sensitive to climate change in this area. However, due to high annual ablation and accumulation in this region, ice cores over long time scales are difficult to retrieve. In addition, reconstructed glacial activity from moraine dates is usually discontinuous. Here, we use a sediment core retrieved from Laigu Lake, which is a proglacial lake located in the headwaters of the Parlung Zangbo River, the largest tributary of the Brahmaputra River, to reflect glacial activities over the last-8000 years in this area. Samples of the sediment core were analyzed for magnetic susceptibility, XRF (X-ray florescence) scanned elemental concentration and grain size. The results indicated that the magnetic susceptibility and CPS (peak area counts per second) of strontium (Sr) could be used as proxies for glacial activity. The CPS of Sr and the magnetic susceptibility were lower and the glacial activity was weak before 4.3 cal Ica BP. Expansion of the glaciers in this area.began from 4.3 cal ka BP and continued to develop after similar to 33 cal ka BP. From 2.2 cal ka BP to 1.6 cal ka BP, the glaciers retreated substantially, followed by another development period until the onset of modern global warming. Based on our findings and other climate records, we concluded that glacial activity in the southeastern Tibetan Plateau areas was mainly influenced by Northern Hemisphere temperatures and summer insolation over a sub-orbital time scale, but did not respond to the Indian monsoon. (C) 2016 Elsevier B.V. All rights reserved.
关键词	OCEAN SUMMER MONSOON SEDIMENT CORE PUMOYUM CO FLUCTUATIONS MOUNTAINS AGE RECONSTRUCTION TEMPERATURE HIMALAYA CLIMATE
英文关键词	The southeastern Tibetan Plateau; Glacial activity; Lacustrine sediment; Holocene; Magnetic susceptibility; XRF
语种	英语
WOS研究方向	Physical Geography ; Geology ; Paleontology
WOS类目	Geography, Physical ; Geosciences, Multidisciplinary ; Paleontology
WOS记录号	WOS:000378959900003
来源期刊	PALAEOGEOGRAPHY PALAEOCLIMATOLOGY PALAEOECOLOGY
来源机构	中国科学院青藏高原研究所
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/258689
推荐引用方式 GB/T 7714	Huang, Lei,Zhu, Liping,Wang, Junbo,et al. Glacial activity reflected in a continuous lacustrine record since the early Holocene from the proglacial Laigu Lake on the southeastern Tibetan Plateau[J]. 中国科学院青藏高原研究所,2016,456.
APA	Huang, Lei.,Zhu, Liping.,Wang, Junbo.,Ju, Jianting.,Wang, Yong.,...&Yang, Ruimin.(2016).Glacial activity reflected in a continuous lacustrine record since the early Holocene from the proglacial Laigu Lake on the southeastern Tibetan Plateau.PALAEOGEOGRAPHY PALAEOCLIMATOLOGY PALAEOECOLOGY,456.
MLA	Huang, Lei,et al."Glacial activity reflected in a continuous lacustrine record since the early Holocene from the proglacial Laigu Lake on the southeastern Tibetan Plateau".PALAEOGEOGRAPHY PALAEOCLIMATOLOGY PALAEOECOLOGY 456(2016).