Giant current ripples on midchannel flood bar north
of Gardiner, Mont. A, Oblique aerial photograph showing form of
bar and pattern of giant current ripples. Flood bar is about 500 m
across and 20 m high. Crests of ripples (fig. 45) are about 2 m high
and about 15 m apart. Flow was towards the camera. A
longitudinal flood bar is shown in the upper right of the
photograph. B, Ridges of
boulders forming giant current ripples on the midchannel flood
bar. The boulders are concentrated on the downstream (right) side
of the crest. Figure 44 from Pierce (1979).
Originally uploaded in Integrating Research and Education:Montana Geoheritage Project:Montana Geoheritage Sites.
Image 350843 is a 1040 by 740 pixel WebP
Uploaded:
Dec18 24
