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Using well labeled diagrams, explain how each of the following features are formed. i) Spit ii) Blow hole

      

Using well labeled diagrams, explain how each of the following features are formed.

i) Spit

ii) Blow hole

  

Answers


Martin
i) Formation of a spit
- It forms on a shallow shore at a point where there is a change in the angle of the coastline
- Sand or shingle is deposited by longshore drift/oblique waves
- Deposition continues and materials accumulate seawards
- With time, an elongated feature with one end attached to the mainland projects into the sea and it is called a spit

split.png

ii)Formation of blowhole
- Wave erosion acts on a line of weakness at the back part of the roof a sea cave
- At the same time weathering especially by solution acts on the line of weakness from the surface downwards
- Eventually, a vertical shaft/hole which connects the surface to the cave below is formed and is called a blowhole

blow.png

marto answered the question on September 12, 2019 at 10:35


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