气候变化领域集成服务门户(CCPortal): Escarpment retreat in sedimentary tablelands and cuesta landscapes

CCPortal

DOI	10.1016/j.earscirev.2019.102890
	Escarpment retreat in sedimentary tablelands and cuesta landscapes – Landforms, mechanisms and patterns
	Duszyński F.; Migoń P.; Strzelecki M.C.
发表日期	2019
ISSN	00128252
卷号	196
英文摘要	Although the general concept that escarpments in layered rocks retreat through time was offered more than 150 years ago, recognizing the exact mechanisms, patterns and rates of retreat remains a challenge. In this paper, we provide the state-of-the-art of the theme of escarpment retreat, reviewing both the classic contributions, often forgotten but important case studies, and the latest research. In separate parts of the paper we discuss: (1) terminology applied to the geomorphology of escarpments; (2) the main assumptions and pathways of long-term evolution of escarpments, including conceptual models presented so far; (3) processes involved in cliff retreat, mainly weathering, mass movements and erosion; (4) the role of spring erosion and fluvial processes, leading to fluvial dissection and development of canyons present in many tablelands; (5) the possible role of climate change in escarpment evolution; (6) rates of escarpment retreat. In conclusions, we summarize the major advances in our understanding of escarpment evolution of the last two-three decades such as the recognition of the key role of emerging groundwater in non-uniform escarpment retreat, of an important role of silica dissolution and underground removal of dissolved solids, increasing appreciation of rock properties in governing the patterns of escarpment retreat, the proposal that cliffs do not necessarily retreat via catastrophic rock slope failures but may disintegrate in situ, and the first attempts to date escarpment retreat using cosmogenic isotopes. Finally, the remaining gaps and possible research priorities for the future are identified. © 2019 Elsevier B.V.
关键词	Canyons Escarpment Mass movements Rock control in geomorphology Sapping Scarp retreat
英文关键词	canyon; cliff; climate change; erosion; escarpment; geomorphology; groundwater; landform evolution; mass movement; weathering
语种	英语
来源期刊	Earth Science Reviews
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/203418
作者单位	Institute of Geography and Regional Development, University of Wrocław, pl. Uniwersytecki 1, Wrocław, 50-137, Poland
推荐引用方式 GB/T 7714	Duszyński F.,Migoń P.,Strzelecki M.C.. Escarpment retreat in sedimentary tablelands and cuesta landscapes – Landforms, mechanisms and patterns[J],2019,196.
APA	Duszyński F.,Migoń P.,&Strzelecki M.C..(2019).Escarpment retreat in sedimentary tablelands and cuesta landscapes – Landforms, mechanisms and patterns.Earth Science Reviews,196.
MLA	Duszyński F.,et al."Escarpment retreat in sedimentary tablelands and cuesta landscapes – Landforms, mechanisms and patterns".Earth Science Reviews 196(2019).