A REAPPRAISAL OF THE SIGNIFICANCE OF OBSTACLE CLASTS IN CLUSTER BEDFORM DISPERSAL

被引：22

作者：

DEJONG, C

机构：

[1] Department of Geography, University of Aberdeen, AB9 2UF, Elphinstone Road, Old Aberdeen

来源：

EARTH SURFACE PROCESSES AND LANDFORMS | 1991年 / 16卷 / 08期

关键词：

CLUSTER BEDFORMS; OBSTACLE CLASTS; GRAVEL-BED RIVERS; ENTRAINMENT;

D O I：

10.1002/esp.3290160807

中图分类号：

P9 [自然地理学];

学科分类号：

0705 ; 070501 ;

摘要：

The dispersal of cluster bedforms is examined in a short, partially braided reach of the River Quoich, northeast Scotland, after minor flood events in 1989 and 1990. In all cases, the eventual dispersal of clusters occurred without prior removal of the obstacle clast. Since none of the obstacle clasts was dispersed in 1989 and only two-thirds by 1990, obstacle clasts probably form a less significant delay to sediment entrainment than previously assumed and represent a relatively immobile component of bed sediment.

引用

页码：737 / 744

页数：8

共 20 条

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