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Geography - processes that shape coastal zones

  • Hydraulic action - the force of the waves hitting the shore

  • Corrasion- when waves hurl material such as sand or rocks against the shore, or when waves roll particles back and forth across the shore

  • Corrosion- when weaker layers of rock dissolve or disintegrate because of sea salt

  • Deposition- mainly occurs in calm areas as the wave energy is not high enough to erode or transport material

**Corrasion and erosion are more common in high-energy areas

Arch

Two caves erode enough to join together

Stack

The entire roof of a cave collapses

Headland

A hard, rocky formation remains after the softer rock in adjoining bays has eroded

Rocky Platform

A notch forms at the base of a cliff face when undercut by waves

EL

Geography - processes that shape coastal zones

  • Hydraulic action - the force of the waves hitting the shore

  • Corrasion- when waves hurl material such as sand or rocks against the shore, or when waves roll particles back and forth across the shore

  • Corrosion- when weaker layers of rock dissolve or disintegrate because of sea salt

  • Deposition- mainly occurs in calm areas as the wave energy is not high enough to erode or transport material

**Corrasion and erosion are more common in high-energy areas

Arch

Two caves erode enough to join together

Stack

The entire roof of a cave collapses

Headland

A hard, rocky formation remains after the softer rock in adjoining bays has eroded

Rocky Platform

A notch forms at the base of a cliff face when undercut by waves