Figure 2-10. Delta types based on morphology
c. Waves. The passage of wind over an ocean causes an alternate rise and fall in the water surface, resulting
in the formation of waves. When waves come into contact with the shoreline, they act upon existing geologic
materials, creating either erosional or depositional features.
(1) Erosional Features Created by Wave Action. Erosion is the dominant geologic process that occurs
where coasts are composed of exposed bedrock. As waves crash into the