Timing and spatial distribution of loess and loess-like sediments in the mountain areas of the northeastern Tibetan Plateau (SCI)

CORC > 寒区旱区环境与工程研究所 > 中科院寒区旱区环境与工程研究所（未分类） > 期刊论文

	Timing and spatial distribution of loess and loess-like sediments in the mountain areas of the northeastern Tibetan Plateau (SCI)
	Lehmkuhl F. ; Schulte P. ; Zhao H. ; Hulle D. ; Protze J. ; Stauch G.
刊名	Catena
	2014
卷号	117 期号:23-33
英文摘要	Most studies on landscape evolution on the Tibetan Plateau during the late Quaternary have mainly focused on using lacustrine records. However, mantles of sandy silt and paleosols also provide valuable archives for reconstructing Holocene paleoenvironmental change. Yet little is known about the distribution and timing of these late Quaternary aeolian sediments. To enhance understanding and knowledge of aeolian sediments in Tibet and to help reconstruct the nature of Late Glacial through mid-Holocene landscape development, a loess-paleosol sequence, the Suohuduo section, located at the eastern margin of the Tibetan Plateau at about 4000 m above sea level is examined using sedimentological, geochemical and geochronological methods. A chronostratigraphy is established using nine optically stimulated luminescence and one radiocarbon ages. Sedimentation increased during the Late Glacial and the early Holocene with an upwards fining of sediments in the lower part of the section. Two mid Holocene paleosols that date to about 8.5 ka to 7 ka and -5.5 ka to 4 ka reflect more humid climate conditions during the mid-Holocene than earlier times. The upper part of the section is mainly silt, which reflects a more open landscape with higher aridity since 4 to 3 ka this time. These data support evidence for similar climate/paleoenvironmental change in adjacent regions on the Tibetan Plateau. (C) 2013 Elsevier B.V. All rights reserved.
收录类别	SCI
语种	英语
公开日期	2015-12-24
内容类型	期刊论文
源URL	[http://ir.casnw.net/handle/362004/24948]
专题	寒区旱区环境与工程研究所_中科院寒区旱区环境与工程研究所（未分类）_期刊论文
推荐引用方式 GB/T 7714	Lehmkuhl F.,Schulte P.,Zhao H.,et al. Timing and spatial distribution of loess and loess-like sediments in the mountain areas of the northeastern Tibetan Plateau (SCI)[J]. Catena,2014,117(23-33).
APA	Lehmkuhl F.,Schulte P.,Zhao H.,Hulle D.,Protze J.,&Stauch G..(2014).Timing and spatial distribution of loess and loess-like sediments in the mountain areas of the northeastern Tibetan Plateau (SCI).Catena,117(23-33).
MLA	Lehmkuhl F.,et al."Timing and spatial distribution of loess and loess-like sediments in the mountain areas of the northeastern Tibetan Plateau (SCI)".Catena 117.23-33(2014).