Finding the Evidence

Diatoms Evidence

Diatoms are tiny single celled organisms that can photosynthsise (use energy from sunlight like plants). They live anywhere damp. With a microscope you can see their glass-like skeletons, some of which are beautiful shapes.

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0 - 0.8m      
0.8m to 1.5m  

Marine diatoms

marine diatom
1.5m to 2.5m   Brackish/marine Brackish marine
2.5m to 3.5m  

Marine

 
3.5m to 5.5m  

Brackish/marine
(Right: Example of plant which would support brackish diatoms)

Brackish Plant
5.5m   Brackish/marine  
5.6m  

No freshwater diatoms found in peat – suggests formed in a drier conditions on edge of intertidal mudflats

 
5.8m      
5.8m to
7m
  Freshwater freshwater
 
 



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