Content being validated
Speed ​​of the current
The speed of the current has a great influence on the formation of ripple-marks. If it is too low, the sand does not move. As it increases, the upper grains begin to move horizontally in a back and forth movement without forming any wrinkles. From a certain threshold, wrinkles appear and their size increases rapidly. If the current still strengthens, the surface of the sand flattens out and the wrinkles disappear.
Read More
Related content

Médias en cours d’exploration