DOI: 10.1016/j.quascirev.2016.09.022
Scopus记录号: 2-s2.0-85006150679
论文题名: River terraces and alluvial fans: The case for an integrated Quaternary fluvial archive
作者: Mather A.E. ; Stokes M. ; Whitfield E.
刊名: Quaternary Science Reviews
ISSN: 2773791
出版年: 2017
卷: 166 起始页码: 74
结束页码: 90
语种: 英语
英文关键词: Alluvial fan
; Buffering
; Coupling
; Fluvial archives
; River terrace
Scopus关键词: Couplings
; Rivers
; Sedimentology
; Settling tanks
; Alluvial fans
; Buffering
; Fluvial archives
; Geographical-based
; Landscape context
; Landscape evolutions
; River terraces
; Sedimentary basin
; Landforms
英文摘要: The fluvial archive literature is dominated by research on river terraces with appropriate mention of adjacent environments such as lakes. Despite modern sedimentary basins comprising a significant (>88%) volume of distributive fluvial systems, of which alluvial fans (>1 km, <30 km in scale) are a significant part, interaction with these environments tends to be neglected and discussed in separate literature. This paper examines the dynamic role of alluvial fans within the fluvial landscape and their interaction with river systems, highlighting the potential value of alluvial fans to the wider fluvial archive community. Published literature is used to examine both thematic and geographical based benefits of alluvial fan research that can assist understanding of Quaternary fluvial archives. 3 regional case studies are presented that illustrate the interaction between alluvial fan and river terrace archives at Quaternary time-scales at 3 different stages of landscape evolution. These are i) continuous mountain front alluvial fans interacting with a non incising but laterally eroding axial fluvial system; ii) alluvial fans which transition into fluvial terraces as sedimentary basins shift from net aggradation to net incision and iii) tributary-junction alluvial fans that develop predominantly within incising river valley systems. A simple conceptual model is proposed to summarise the dynamic role of alluvial fans within this landscape context. The alluvial fans act as potential ‘buffers’ between hillslopes and river terrace records under ‘top down’ climate-driven high sediment supply and alluvial fan aggradation, and ‘couplers’ during periods of less sediment (in relation to water) discharge and alluvial fan incision. These dynamics will change with the addition of ‘bottom up’ controls such as main river incision, which will typically enhance the coupling effect of both systems. © 2016 Elsevier Ltd Citation statistics:
资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/59212
Appears in Collections: 过去全球变化的重建
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作者单位: School of Geography, Earth and Environmental Sciences, Plymouth University, Drake Circus, Plymouth, United Kingdom; School of Natural Sciences and Psychology, Liverpool John Moores University, Byrom Street, Liverpool, United Kingdom
Recommended Citation:
Mather A.E.,Stokes M.,Whitfield E.. River terraces and alluvial fans: The case for an integrated Quaternary fluvial archive[J]. Quaternary Science Reviews,2017-01-01,166