干旱区生态环境知识资源中心(Arid): Climate, lithology, and tectonics interaction in shaping a hazardous salt karst: A case from the middle-late Miocene (?) evaporite succession of NE Iran

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DOI	10.1016/j.geomorph.2020.107067
	Climate, lithology, and tectonics interaction in shaping a hazardous salt karst: A case from the middle-late Miocene (?) evaporite succession of NE Iran
	Navidtalab, Amin; Moghim, Gholamreza Maghami
通讯作者	Moghim, Gholamreza Maghami
来源期刊	GEOMORPHOLOGY
ISSN	0169-555X
EISSN	1872-695X
出版年	2020
卷号	356
英文摘要	Karst landforms cover a considerable area of the Earth's surface. With increasing population and demand for further land exploitation, the prospect of being affected by karsts has increased dramatically over the past decades. Among karst landforms, salt karsts showhigher vulnerability and faster evolution in the human life-span. In Iran, most of salt karst studies have been carried out in the south (mainly Zagros). Contrariwise, the northern and central parts of the country have been rarely studied. This study investigates a salt karst system in the northeastern part of the Central Iran. Field investigation and satellite image analysis of the area revealed a salt karst in the Upper Red Formation (URF) comprising elements of a mature karstic system including dolines, ponors, caves, shafts, valleys, poljes, springs, and streams. Tectonics by creating open fractures in impermeable salts provided conduits for fluid transport and development of the karst. Since salts are highly soluble and disappear very soon, arid climate in the studied area led to the preservation of the salt karst. Although the area is a cold desert with small amounts of precipitation, it is hydrologically active. This is ascribed to the increased water efficiency by the karst system that immediately funnels the runoffs into the ground and prevents from evaporation. Water efficiency is amplified by an impermeable substrate of the karst and timing of the precipitation. The studied karst partly underlies the Tehran-Mashhad railway which endangers the infrastructure, and can cause failure and casualties. Since the salt bearing URF extends throughout large parts of Central Iran, this study suggests comprehensive geomorphological, hydrogeological, and geophysical studies of this formation for providing hazard maps. (C) 2020 Elsevier B.V. All rights reserved.
英文关键词	Salt karst Hazards Arid climate URF Central Iran
类型	Article
语种	英语
国家	Iran
收录类别	SCI-E
WOS记录号	WOS:000527302000001
WOS关键词	DAMAGED ROCK-SALT ; FOLD-THRUST BELT ; PERSIAN-GULF ; RIVER VALLEY ; ZAGROS MOUNTAINS ; WORLD MAP ; DEAD-SEA ; DISSOLUTION ; EVOLUTION ; EROSION
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/2XILL650/314613
作者单位	Damghan Univ, Sch Earth Sci, Damghan 3671641167, Iran
推荐引用方式 GB/T 7714	Navidtalab, Amin,Moghim, Gholamreza Maghami. Climate, lithology, and tectonics interaction in shaping a hazardous salt karst: A case from the middle-late Miocene (?) evaporite succession of NE Iran[J],2020,356.
APA	Navidtalab, Amin,&Moghim, Gholamreza Maghami.(2020).Climate, lithology, and tectonics interaction in shaping a hazardous salt karst: A case from the middle-late Miocene (?) evaporite succession of NE Iran.GEOMORPHOLOGY,356.
MLA	Navidtalab, Amin,et al."Climate, lithology, and tectonics interaction in shaping a hazardous salt karst: A case from the middle-late Miocene (?) evaporite succession of NE Iran".GEOMORPHOLOGY 356(2020).