Fig. 13From: Morphometric measurements of bedrock rivers at different spatial scales and applications to geomorphological heritage researchAn interpretation of the image shown in Fig. 10. Crests and troughs in a microdiorite dyke. Scratch marks superimposed on gentle convex stoss slopes form following the direction of the main flow. Pseudo-ripples crests develop perpendicularly to a secondary flow. The secondary flow could generate cavitation on steep concave lee slopes, forming pits as a consequence of the small crystal size and higher weatherability of microdioriteBack to article page