Sea Stack Formation
Updated: 6/12/2020
Sea Stack Formation
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Storyboard Description

From crack to cave to arch to stack.

Storyboard Text

  • This is what it looks like at the beginning.
  • It starts with a crack in the rock. Hydraulic action then widens the crack.
  • This becomes a cave. Hydraulic action keeps on detatching material which makes the cave wider.Abrasion, attrition and solution also take place.
  • The process keeps happening until it forms a sea arch. They are formed very slowly overtime.
  • When the sea arch becomes too wide to support its own weight it collapses. Leaving us with a tall stack.
  • As erocion continues it undermines the base until it collapses forming a stump.
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