The provided diagrams show the various stages of coastal erosion impacting a headland, presenting the consequences from solid rock to eventual retreat.
Firstly, vulnerable sections of the headland’s rock are worn away, resulting in the formation of caves. Following this, the unimaginable force of the sea widens these caves into arches, resembling the process observed at Durdle Door in Dorset. This progression means the shift from a tightly structured structure to one with distinct openings.
As erosion persists, the arches face to face with further alteration, with the bottom piece on the water weakening and collapsing to create isolated rock formations known as stacks. This period demonstrates a noticeable transformation in the headland’s view, marked by the emergence of distinct vertical structures. Additionally, the subsequent erosion of these stacks into stumps underscores the ongoing and transformative impact of coastal erosion.