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In geology, Clay-with-Flints was the name given by W. Whitaker in 1861 to a peculiar deposit of stiff red, brown or yellow clay containing unworn whole flints as well as angular shattered fragments, also with a variable admixture of rounded flint, quartz, quartzite and other pebbles.
The Formation is associated with deposits of the Chalk Group, subsequent Palaeogene and Neogene strata, and occasionally Upper Greensand.
- Anon. "Clay-with Flints formation". The BGS Lexicon of Named Rock Units. BGS. Retrieved 03/05/2017. Check date values in:
- Gallois, R. W. (2009). "The origin of the Clay-with-flints: the missing link". Geoscience in South-West England. 12: 153–161. Check date values in: