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Geological Formation

Sea Arch

Coastal and Reef Features

A sea arch is a natural arch, or rock bridge, formed where erosion cuts an opening through a coastal cliff, fin or stack. Natural arches of this kind form where erosion from the sea, from rivers or from weathering works through a narrow point in the rock, leaving a span of stone standing over open water or open ground; when the span eventually collapses it leaves a stack standing apart from the cliff.

Connections

Caused By

Erosion, Processes
Source Natural arch (Wikipedia)
Weathering, Processes
Source Natural arch (Wikipedia)

In Discipline

Source Natural arch (Wikipedia)
Sources
Natural arch (Wikipedia)
  • Caused By: Erosion, Lead paragraph
    Natural arches commonly form where inland cliffs, coastal cliffs, fins or stacks are subject to erosion from the sea, rivers or weathering (subaerial processes).
  • Caused By: Weathering, Lead paragraph
    Natural arches commonly form where inland cliffs, coastal cliffs, fins or stacks are subject to erosion from the sea, rivers or weathering (subaerial processes).
  • In Discipline: Geomorphology, Lead sentence
    A natural arch, natural bridge, or (less commonly) rock arch is a natural landform where an arch has formed with an opening underneath.
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