Cliffs - • An arch is created when a cave in a headland...

Info iconThis preview shows page 1. Sign up to view the full content.

View Full Document Right Arrow Icon
Cliffs, Wave Cut Platforms and Offshore Terraces A notch is cut by waves at high tide level and developed further. As this notch is developed, a cliff is formed. The cliff steepens as weathering attacks the base further. As the cliff retreats, the rock debris is swept by the backwash creating a wave-cut platform . Some of the debris collects along the seaward edge of the wave-cut platform forming and off-shore terrace . Caves, Geos, Arches and Stacks Holes in the cliff face are enlarged by wave action A tunnel like opening called a cave is formed. The cave may develop further forming a long narrow inlet known as a geo
Background image of page 1
This is the end of the preview. Sign up to access the rest of the document.

Unformatted text preview: . • An arch is created when a cave in a headland is eroded right through i.e. the inlet has two openings • When the arch collapses, the end of a headland stands up as a stack . Headlands and Bays • These are formed in areas of alternating resistant and less resistant rocks. • Erosion/wave action acts less on the more resistant rock creating headlands and more on the less resistant rock creating bays. Factors Affecting the Rate of Wave Erosion 1. Breaking point of the wave. 2. Wave steepness 3. Configuration of the coastline 4. Depth of the sea 5. Supply of beach material 6. Beach width 7. Nature of the rock...
View Full Document

This note was uploaded on 11/10/2011 for the course GEA GEA2000 taught by Professor Wong,faith during the Fall '09 term at Broward College.

Ask a homework question - tutors are online