干旱区生态环境知识资源中心(Arid): The Potential of Small Mountain River Systems for Paleoenvironmental Reconstructions in Drylands-An Example from the Binaloud Mountains in Northeastern Iran

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DOI	10.3390/geosciences10110448
	The Potential of Small Mountain River Systems for Paleoenvironmental Reconstructions in Drylands-An Example from the Binaloud Mountains in Northeastern Iran
	Khosravichenar, Azra; Fattahi, Morteza; Amini, Hamideh; Suchodoletz, Hans von
通讯作者	von Suchodoletz, H
来源期刊	GEOSCIENCES
EISSN	2076-3263
出版年	2020
卷号	10 期号:11
英文摘要	Fluvial sediments are valuable paleoenvironmental archives of the Quaternary. Since besides environmental factors they are also affected by local tectonics or intrinsic processes, large instead of small catchments should be studied. In drylands covering ca. 45% of the global terrestrial surface large river systems are generally missing, and most river systems are small rivers originating from mountain ranges. Their sediments are potentially interesting paleoenvironmental archives, but are often affected by intensive tectonics. During this study, to obtain a robust regional paleoenvironmental signal a small river system in the southwestern Binaloud Mountains in semi-arid NE Iran was exemplarily studied with a combined approach that encompassed both alluvial fan and catchment. By using geomorphological mapping and numerical dating, fluvial aggradation followed by incision was independently identified in larger areas or in different parts of the river system ca. 95-88 ka, 40 ka, 20 ka, around/after the Pleistocene/Holocene transition and possibly ca. 2.6 ka. These could be linked with regional and over-regional paleoenvironmental data. Furthermore, large boulders on the alluvial fan suggest anthropogenic destabilisation of the catchment during the last decades. Despite strong local tectonics the fluvial dynamics was mostly controlled by paleoenvironmental changes and human activity. This indicates that despite their small size, such river systems form valuable paleoenvironmental archives in drylands where other archive types are largely missing.
英文关键词	fluvial geomorphology paleoenvironmental reconstruction drylands late Quaternary tectonics alluvial fans Iran
类型	Article
语种	英语
开放获取类型	Other Gold, Green Published
收录类别	ESCI
WOS记录号	WOS:000594000500001
WOS关键词	LOESS-PALEOSOL SEQUENCE ; LANDSCAPE EVOLUTION ; TERRACE FORMATION ; FLUVIAL DYNAMICS ; ALLUVIAL FANS ; NORTHERN IRAN ; NE IRAN ; LAST ; CLIMATE ; HOLOCENE
WOS类目	Geosciences, Multidisciplinary
WOS研究方向	Geology
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/334769
作者单位	[Khosravichenar, Azra] Max Planck Inst Evolutionary Anthropol, Dept Human Evolut, D-04103 Leipzig, Germany; [Khosravichenar, Azra; Suchodoletz, Hans von] Univ Leipzig, Inst Geog, Leipzig, Germany; [Khosravichenar, Azra] Ferdowsi Univ Mashhad, Dept Geog, IR-91779489 Mashhad, Razavi Khorasan, Iran; [Fattahi, Morteza; Amini, Hamideh] Univ Tehran, Inst Geophys, IR-14155646 Tehran, Iran
推荐引用方式 GB/T 7714	Khosravichenar, Azra,Fattahi, Morteza,Amini, Hamideh,et al. The Potential of Small Mountain River Systems for Paleoenvironmental Reconstructions in Drylands-An Example from the Binaloud Mountains in Northeastern Iran[J],2020,10(11).
APA	Khosravichenar, Azra,Fattahi, Morteza,Amini, Hamideh,&Suchodoletz, Hans von.(2020).The Potential of Small Mountain River Systems for Paleoenvironmental Reconstructions in Drylands-An Example from the Binaloud Mountains in Northeastern Iran.GEOSCIENCES,10(11).
MLA	Khosravichenar, Azra,et al."The Potential of Small Mountain River Systems for Paleoenvironmental Reconstructions in Drylands-An Example from the Binaloud Mountains in Northeastern Iran".GEOSCIENCES 10.11(2020).