Paper 1 - Coastal landforms caused by erosion Flashcards
headlands erosion (caves, arches, stacks and stumps)
waves crash into headland and enlarge cracks (hydraulic power and abrasion)
repeated erosion causes cave to form
continued erosion causes cave to deepen until it bracks through - forming an arch e.g. durdle door
erosion continues to wear away rock supporting the arch and then it collapses
forms a stack e.g. old harry
three types of coastal landforms
wave cut platform
headlands
arches, stack + stumps
wave cut platform
most erosion from water at foot of the cliff - causes a wave cut notch
material above becomes unstable and collapses
collapsed material is moved away and a new wave cut platform starts to form
wave cut platform definition
platform thats left behind as the cliff retreats
headlands and bays
form when there are alternating bands of soft material and hard