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Coastal Landforms: Cave, Arch, and Stack Formation

Discover the fascinating geological process along coastlines as waves sculpt caves, arches, and stacks. Learn how headlands evolve into stunning natural formations through erosion and collapse. This educational material is provided by Tom Abbott from Biddulph High School through www.sln.org.uk/geography for non-commercial school use.

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Coastal Landforms: Cave, Arch, and Stack Formation

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  1. Cave Arch and Stack Formation  Tom Abbott, Biddulph High School and made available through www.sln.org.uk/geography and only for non commercial use in schools

  2.  Tom Abbott, Biddulph High School and made available through www.sln.org.uk/geography and only for non commercial use in schools

  3. Waves attack the headland cutting caves on each side  Tom Abbott, Biddulph High School and made available through www.sln.org.uk/geography and only for non commercial use in schools

  4.  Tom Abbott, Biddulph High School and made available through www.sln.org.uk/geography and only for non commercial use in schools

  5. Wave attack opens up the caves on each side of the headland until they join and form a natural arch  Tom Abbott, Biddulph High School and made available through www.sln.org.uk/geography and only for non commercial use in schools

  6.  Tom Abbott, Biddulph High School and made available through www.sln.org.uk/geography and only for non commercial use in schools

  7. The arch enlarges until it collapses, leaving a standing rock called a stack New arch forms  Tom Abbott, Biddulph High School and made available through www.sln.org.uk/geography and only for non commercial use in schools

  8.  Tom Abbott, Biddulph High School and made available through www.sln.org.uk/geography and only for non commercial use in schools

  9. The old stack is worn down into a stump Another arch collapses and a new stack is formed.  Tom Abbott, Biddulph High School and made available through www.sln.org.uk/geography and only for non commercial use in schools

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