涡流波痕

本文介绍一种新的波痕类型——涡流波痕,它由若干列放射状排列的波痕组成一个小波痕体系。单列波痕脊的中段呈弧形前凸。笔者将涡流波痕的形态特征与涡流的运动特征相比较,探讨了形成涡流波痕的水动力条件。笔者在阐明涡流波痕产地地理背景的基础上,指出大潮差沙滩的后滨是发育涡流波痕的理想环境。

EDDY RIPPLE MARKS

The paper introduces a new ripple type-eddy ripple mark, which is a small system of ripple composed of radiant form ripples. The middle of every single array of ripple ridge appears to be in an are shape with convex forward. The author compares characters of eddy ripples with the features of eddy motion and inquires into the hydrodynamic conditions under which eddy ripples are formed. Based on geographical setting where eddy ripple are produced, the author notes that the backshore of sandy beach with large tide range is the ideal environment of eddy ripples.