The surface had sandy deposits from an ancient sea, laid over sedimentary clay ( this is the blue London Clay ).
2.
The surface had sandy deposits from an ancient sea, laid over sedimentary clay ( this is the Blue London Clay ).
3.
Hunsingo has expanded by reclaiming land that initially is filled in by the natural settlement of sedimentary clay by the sea near the dikes ( endiking ).
4.
The Bovey Formation is the major source in England for ball clay a highly plastic fine-grained kaolinitic sedimentary clay typically used by the pottery industry.
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