A coarser bed within the Caswell Bay Oolite.
The base of the coarser bed lies some 3 cm below the base of the scale. Its top lies some 2 cm below the prominent white calcite vein,
What is the nature of the contact between the coarse bed and the finer-grained oolite below it?
Are there any changes in texture between the base and top of the coarser bed?
Think about these questions, and then
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