|From L-R: Two of the DeepCHALLA lake sediment core sections - the lighter layers are rich in diatoms; Difference|
between a sample rich in diatoms (left) and a sample with little diatoms and more mineral matter (right).
|SEM image of fossilized diatoms from lake sediment 39 metres deep. |
Image shows diatom fragments, Afrocymbella species.