> sedimentary rocks
> chalk = organic ( dead organisms)
> clay = clastic ( sediment)
Formed
> under the sea due to compression from weight of layers above
> uplifted by tectonic activity to form land
Found
Chalk = south & east of England, east of the Tee-Exes line, stretching from Norfolk in a band down
Clay = lot more common than chalk, number of locations across the UK
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