Erosional Features of Waves

Arches, stacks, and caves are geological formations that are formed by the erosional features of waves. Waves are generated by the wind, and as they approach the shore, they interact with the coastline. The energy of the waves is concentrated on the shoreline, and this leads to the erosion of the land.

Formation of Arches

Arches are formed when the waves erode the rock at the base of a headland, creating a small cave. As the cave gets larger, the roof of the cave becomes unstable and collapses, leaving a hole in the headland. Over time, the hole becomes larger, and an arch is formed.

Formation of Stacks

Stacks are formed when the top of an arch collapses, leaving a pillar of rock standing in the sea. The pillar is then eroded by the waves, and over time, it becomes narrower and shorter. Eventually, the stack will collapse, and the remaining rock will be eroded away.

Formation of Caves

Caves are formed when the waves erode the base of a cliff, creating a hollow space. As the waves continue to erode the cliff, the cave becomes larger. Over time, the roof of the cave may collapse, leaving a hole in the cliff.

Conclusion

In conclusion, erosional features of waves are responsible for the formation of arches, stacks, and caves. These geological formations are found all over the world and are a testament to the power of the ocean.