干旱区生态环境知识资源中心(Arid): Paleoenvironmental changes in the eastern Kumtag Desert, northwestern China since the late Pleistocene

Arid

DOI	10.1017/qua.2023.38
	Paleoenvironmental changes in the eastern Kumtag Desert, northwestern China since the late Pleistocene
	Song, Haoze; Yang, Xiaoping; Preusser, Frank; Fuelling, Alexander; Chen, Bo
通讯作者	Yang, XP
来源期刊	QUATERNARY RESEARCH
ISSN	0033-5894
EISSN	1096-0287
出版年	2023
英文摘要	Sedimentary records from the Kumtag (also known as Kumtagh) Desert (KMD) in northwestern China are investigated to better understand Late Quaternary paleoenvironmental changes in this hyper-arid region. Presented here are the results of probably the first systematic survey of sedimentary sequences from the KMD, with the chronology determined by the optically stimulated luminescence dating. The variation of sedimentary facies, supported by granular and geochemical paleoenvironmental proxies, is used to decipher the history of Late Quaternary environment changes. The results demonstrate that a constantly dry condition characterized the eastern KMD since the last glacial maximum, but with occurrences of wetter periods. From ca. 17 to 15 ka, fluvial activity was probably triggered by melting of glaciers in mountains located south of the KMD. A distinctly drier stage (ca. 13-7 ka) was recognized due to the prominent occurrence of aeolian sands. A wetter environment likely persisted between ca. 4.4 and 2.2 ka, consistent with evidence of human activities. While the causes of paleoenvironmental changes in the eastern KMD are still a matter of debate, the melting of glaciers in the Altyn-Tagh Mountains in the south must be considered as an important factor.
英文关键词	Late Quaternary Paleoenvironmental change End-member analysis Geochemical element OSL dating Holocene
类型	Article ; Early Access
语种	英语
收录类别	SCI-E
WOS记录号	WOS:001059888100001
WOS关键词	ARID CENTRAL-ASIA ; GRAIN-SIZE ; TAKLAMAKAN DESERT ; NORTHERN CHINA ; LAKE-SEDIMENTS ; BOSTEN LAKE ; SAND SEA ; LOP NUR ; DUST ; HOLOCENE
WOS类目	Geography, Physical ; Geosciences, Multidisciplinary
WOS研究方向	Physical Geography ; Geology
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/398197
推荐引用方式 GB/T 7714	Song, Haoze,Yang, Xiaoping,Preusser, Frank,et al. Paleoenvironmental changes in the eastern Kumtag Desert, northwestern China since the late Pleistocene[J],2023.
APA	Song, Haoze,Yang, Xiaoping,Preusser, Frank,Fuelling, Alexander,&Chen, Bo.(2023).Paleoenvironmental changes in the eastern Kumtag Desert, northwestern China since the late Pleistocene.QUATERNARY RESEARCH.
MLA	Song, Haoze,et al."Paleoenvironmental changes in the eastern Kumtag Desert, northwestern China since the late Pleistocene".QUATERNARY RESEARCH (2023).