干旱区生态环境知识资源中心(Arid): Late Quaternary landscape evolution and paleoenvironmental implications from multiple geomorphic dryland systems, Orog Nuur Basin, Mongolia

Arid

DOI	10.1002/esp.5247
	Late Quaternary landscape evolution and paleoenvironmental implications from multiple geomorphic dryland systems, Orog Nuur Basin, Mongolia
	Nottebaum, Veit; Stauch, Georg; van der Wal, Jorien L. N.; Zander, Anja; Schluetz, Frank; Shumilovskikh, Lyudmila; Reicherter, Klaus; Batkhishig, Ochirbat; Lehmkuhl, Frank
通讯作者	Lehmkuhl, F (corresponding author), Rhein Westfal TH Aachen, Dept Geog, Wullnerstr 5b, D-52056 Aachen, Germany.
来源期刊	EARTH SURFACE PROCESSES AND LANDFORMS
ISSN	0197-9337
EISSN	1096-9837
出版年	2022
英文摘要	This study investigates the late Quaternary development of the sedimentary system of Orog Nuur Basin in southern Mongolia. Geomorphological archives (lacustrine sediments and beach ridges, alluvial fans, aeolian deposits, peat) recorded palaeoenvironmental change from marine isotope stage (MIS) 7 to the late Holocene. Synthesizing the variety of archives allows a better understanding of geomorphological interactions in arid regions and palaeoenvironmental implications for the area. By performing palaeoshoreline mapping and dating, we identified eight palaeolake levels resulting in a refined lake level history of Orog Nuur. The highest reliably dated shoreline is about 56 m higher than today's lake level and provides evidence for a late MIS 5 lake level between 100 and 75 thousand years (ka). Reconstructions yield a minimum volume estimate of 24.5 km(3), delineating a lake that is 153 times larger than that of today (0.16 km(3)). Massive lake extensions occurred also during MIS 3 and the Holocene. The geomorphological investigation reveals late MIS 5 and MIS 3 lake expansions were of similar magnitude. The palaeoenvironmental reconstruction from early Holocene archives indicates that lake expansion was caused by an increase in precipitation and meltwater inflow from the surrounding mountain systems. Afterwards, lake levels declined with some intermittent highstands during the mid-Holocene (7-5 ka), indicating a general trend towards a lower water inflow throughout the Holocene. Palynological reconstructions of the alpine vegetation development reveal that mid-Holocene highstands (c. 6.5 ka and 5.5 ka) were fed by higher precipitation in the nearby Gurvan Bogd range. Mountain silts, basin silty sands, and Holocene dune deposits provide further evidence for paleoenvironmental change. As controlling factors of the sedimentary system, we identified changes in effective moisture, higher precipitation values and the contribution of meltwater. Orog Nuur Basin archives are valuable for landscape and palaeoenvironmental reconstructions and for comparisons in supraregional reconstruction approaches.
英文关键词	Central Asia dryland geomorphology Holocene moisture optimum palaeoshorelines palynology
类型	Article
语种	英语
开放获取类型	hybrid
收录类别	SCI-E
WOS记录号	WOS:000708404000001
WOS关键词	OF-PHASE RELATIONSHIP ; ARID CENTRAL-ASIA ; RANGE GOBI-ALTAY ; ALLUVIAL FANS ; CLIMATIC-CHANGE ; GEOMORPHOLOGICAL PROCESSES ; ENVIRONMENTAL-CHANGE ; MOISTURE EVOLUTION ; KHANGAI MOUNTAINS ; AEOLIAN SEDIMENTS
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/2XILL650/362963
作者单位	[Nottebaum, Veit; Stauch, Georg; Lehmkuhl, Frank] Rhein Westfal TH Aachen, Dept Geog, Wullnerstr 5b, D-52056 Aachen, Germany; [van der Wal, Jorien L. N.; Reicherter, Klaus] Rhein Westfal TH Aachen, Inst Neotecton & Nat Hazards, Aachen, Germany; [Zander, Anja] Univ Cologne, Inst Geog, Cologne, Germany; [Schluetz, Frank; Shumilovskikh, Lyudmila] Georg August Univ Gottingen, Dept Palynol & Climate Dynam, Gottingen, Germany; [Schluetz, Frank] Lower Saxony Inst Hist Coastal Res, Wilhelmshaven, Germany; [Batkhishig, Ochirbat] Mongolian Acad Sci, Inst Geog Geoecol, Ulaanbaatar, Mongolia
推荐引用方式 GB/T 7714	Nottebaum, Veit,Stauch, Georg,van der Wal, Jorien L. N.,et al. Late Quaternary landscape evolution and paleoenvironmental implications from multiple geomorphic dryland systems, Orog Nuur Basin, Mongolia[J],2022.
APA	Nottebaum, Veit.,Stauch, Georg.,van der Wal, Jorien L. N..,Zander, Anja.,Schluetz, Frank.,...&Lehmkuhl, Frank.(2022).Late Quaternary landscape evolution and paleoenvironmental implications from multiple geomorphic dryland systems, Orog Nuur Basin, Mongolia.EARTH SURFACE PROCESSES AND LANDFORMS.
MLA	Nottebaum, Veit,et al."Late Quaternary landscape evolution and paleoenvironmental implications from multiple geomorphic dryland systems, Orog Nuur Basin, Mongolia".EARTH SURFACE PROCESSES AND LANDFORMS (2022).