(Chalk and Lias) - 2002

At Chapel Rock, the Cretaceous sucession includes:

Clay with Flints: 1m
Upper Chalk: 26m
Middle Chalk: 44m
Lower Chalk: 1m
Upper Greensand: 25m
Gault: 43m
----------
Lower Lias 8m

As you can see, there is wide range of rocks at Chippel Bay caused by faulting.

(The Lias) - 2002

The head of Pinhay Bay exposes Triassic rocks of the Penarth on the foreshore, the Contorta Shales from the Westbury Formation make up 5m here and crop out. A range of bivalves including Rhaotavicula contorta, Chlamys valonensis and Protocardia rhaetica can all be found. The White Lias Langport member follows this, around 8m clearly seen in the cliff by its pale green or gray limestones.

Walking West of Seven Rock Point, the higher and younger rocks can be seen. These overlying 19m of Blue Lias. The lowest beds are from the Penarth, this is only around 0.3m and are excluded from the Lias. At the base of the Jurassic, ammonites can be found.

(Upper Chalk) - 2002