干旱区生态环境知识资源中心(Arid): Internal structure of a large, complex rock glacier and its significance in hydrological and dynamic behavior: A case study in the semi-arid Andes of Argentina

Arid

DOI	10.1002/ppp.2132
	Internal structure of a large, complex rock glacier and its significance in hydrological and dynamic behavior: A case study in the semi-arid Andes of Argentina
	Daniel Villarroel, Cristian; Agostina Ortiz, Diana; Paula Forte, Ana; Tamburini Beliveau, Guillermo; Ponce, David; Imhof, Armando; Lopez, Andres
通讯作者	Villarroel, CD (corresponding author), Complejo Univ Islas Malvinas, Geosphere & Biosphere Res Ctr CIGEOBIO CONICET, Av Ignacio de la Roza 590, San Juan, Argentina.
来源期刊	PERMAFROST AND PERIGLACIAL PROCESSES
ISSN	1045-6740
EISSN	1099-1530
出版年	2022
英文摘要	This paper presents an analysis of the internal structure, hydrogeology and dynamics of a large, complex, multilobate and multiroot rock glacier combining electrical resistivity tomography (ERT), hydrochemical data and differential interferometry synthetic aperture radar (DInSAR). The rock glacier consists of a series of overlapping lobes that represent different advancing stages with different degrees of conservation. The ERT surveys characterize the active layer and the upper part of the permafrost layer, the latter showing a heterogeneous geometry and electrical resistivity values ranging from 7 to 142 k omega m. Hydrochemical data argue for both the existence of different disconnected water flow pathways inside the rock glacier and the remarkable ionic concentrator effect of this landform. The horizontal displacement from October 2014 to April 2017 shows greatest magnitudes in the upper sector of both tongues, reaching speeds of up to 150 cm/year. The active frontal sector shows a displacement rate of 2-4.5 cm/year. This study contributes to knowledge of the material properties of rock glaciers, which are considered to represent important reservoirs/water resources, and their influence on the distribution of mountain permafrost, hydrology, and dynamics. Finally, to the best of our knowledge, the possible influence of the metal content of the ground on the resistivity values recorded for mountain permafrost is highlighted for the first time.
英文关键词	Central Andes DInSAR geoelectrical prospecting mountain permafrost rock glacier
类型	Article
语种	英语
收录类别	SCI-E
WOS记录号	WOS:000711528900001
WOS关键词	DRY ANDES ; PERMAFROST DISTRIBUTION ; VELOCITY VARIATIONS ; ARID ANDES ; SHORT-TERM ; CHILE ; DEGRADATION ; TOMOGRAPHY ; TOPOGRAPHY ; AREA
WOS类目	Geography, Physical ; Geology
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/2XILL650/367606
作者单位	[Daniel Villarroel, Cristian; Paula Forte, Ana; Ponce, David] Complejo Univ Islas Malvinas, Geosphere & Biosphere Res Ctr CIGEOBIO CONICET, Av Ignacio de la Roza 590, San Juan, Argentina; [Agostina Ortiz, Diana; Imhof, Armando; Lopez, Andres] Natl Univ San Juan, Fac Exact Phys & Nat Sci, Dept Geophys & Astron, San Juan, Argentina; [Agostina Ortiz, Diana] Univ Bonn, Dept Geog, Bonn, Germany; [Tamburini Beliveau, Guillermo] Res & Transfer Ctr Santa Cruz, Santa Cruz, Argentina
推荐引用方式 GB/T 7714	Daniel Villarroel, Cristian,Agostina Ortiz, Diana,Paula Forte, Ana,et al. Internal structure of a large, complex rock glacier and its significance in hydrological and dynamic behavior: A case study in the semi-arid Andes of Argentina[J],2022.
APA	Daniel Villarroel, Cristian.,Agostina Ortiz, Diana.,Paula Forte, Ana.,Tamburini Beliveau, Guillermo.,Ponce, David.,...&Lopez, Andres.(2022).Internal structure of a large, complex rock glacier and its significance in hydrological and dynamic behavior: A case study in the semi-arid Andes of Argentina.PERMAFROST AND PERIGLACIAL PROCESSES.
MLA	Daniel Villarroel, Cristian,et al."Internal structure of a large, complex rock glacier and its significance in hydrological and dynamic behavior: A case study in the semi-arid Andes of Argentina".PERMAFROST AND PERIGLACIAL PROCESSES (2022).