Coastal Landforms - Erosion (cave (A cave is a hollow place in the ground,…
Coastal Landforms - Erosion
A crack will form in the headland due to erosion. A weakness in the headland is exploited. This is because of wave refraction
A cave is a hollow place in the ground
As the crack widens, a cave is created as more erosion occurs.
caves are found along coasts around the world.
Eventually, the roof of the arch collapses due to it being too heavy to support
A stack or sea stack is a geological landform consisting of a steep and often vertical column or columns of rock in the sea near a coast
When the cave erodes all the way through the head land, an arch will be created
An arch is a vertical curved structure that spans an elevated space and may or may not support the weight above it, or in case of a horizontal arch like an arch dam, the hydrostatic pressure against it.
As the stack erodes at the bottom, it becomes very wobbly and in the end it collapses leaving a stump
When the arch has collapsed, a stack is left