干旱区生态环境知识资源中心(Arid): Fluvial activity in the Lomas de Lachay during the upper Pleistocene and Holocene

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DOI	10.1016/j.geomorph.2020.107087
	Fluvial activity in the Lomas de Lachay during the upper Pleistocene and Holocene
	Kalicki, Tomasz 1; Kalicki, Piotr 2
通讯作者	Kalicki, Tomasz
来源期刊	GEOMORPHOLOGY
ISSN	0169-555X
EISSN	1872-695X
出版年	2020
卷号	357
英文摘要	The Lomas de Lachay are the first ridges of the western slope of the Andes, about 100 km northward from Lima. This study examines the structure and age of fluvial terraces in the valleys of different orders. Accumulation of alluvium took place during the periods ca. 57 ka, 24-15 ka and likely the Late Glacial/Early Holocene. These periods correlate with pluvial Minchin, Tauca, and probably Coipasa (when fluvial activity in some Peruvian valleys was also noted). These alluviation phases were separated by erosion and terrace formation. The progressive aridization of the climate caused LGM aeolian covers to appear (21-18 ka) for the first time. Wind-blown sands fossilized older forms of relief and covered the valley slopes in the border zone between the lomas and desert. In the Holocene period, three types of geosystems developed in line with different morphogenetic activity: Coastal Desert (typified by a prevalence of aeolian processes); Lomas (very stable, with a prevalence of chemical weathering - tafones); and Mountain Desert (typified by very active fluvial and slope systems during El Nino events). Settlement phases in Lomas de Lachay were related to a high frequency of ENSO, and intensive grazing in recent centuries caused the creation of terracettes and buried soils on the slopes. (C) 2020 Elsevier B.V. All rights reserved.
英文关键词	Lomas de Lachay Andes River terraces Quaternary
类型	Article
语种	英语
国家	Poland
收录类别	SCI-E
WOS记录号	WOS:000527306200003
WOS关键词	SOUTHERN PERU ; CENTRAL COAST ; EL-NINO ; VALLEY ; CLIMATE ; INCISION ; DROUGHTS ; ANDES
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/2XILL650/319113
作者单位	1.Jan Kochanowski Univ Humanities & Sci, Poland Inst Geog & Environm Sci, Dept Geomorphol & Geoarchaeol, Kielce, Poland; 2.Jagiellonian Univ, Inst Archaeol, Krakow, Poland
推荐引用方式 GB/T 7714	Kalicki, Tomasz,Kalicki, Piotr. Fluvial activity in the Lomas de Lachay during the upper Pleistocene and Holocene[J],2020,357.
APA	Kalicki, Tomasz,&Kalicki, Piotr.(2020).Fluvial activity in the Lomas de Lachay during the upper Pleistocene and Holocene.GEOMORPHOLOGY,357.
MLA	Kalicki, Tomasz,et al."Fluvial activity in the Lomas de Lachay during the upper Pleistocene and Holocene".GEOMORPHOLOGY 357(2020).