The Monk's Bay Sandstone, formerly known as the

Carstone Formation The Carstone Formation is a geological formation in England. It preserves fossils dating back to the Albian stage of the Cretaceous period. It predominantly consists of "greenish-brown (rusty when weathered), thick-bedded, cross-bedded, ooliti ...

of the Isle of Wight (or similar) is a geological formation in

England England is a country that is part of the United Kingdom. It shares land borders with Wales to its west and Scotland to its north. The Irish Sea lies northwest and the Celtic Sea to the southwest. It is separated from continental Europe ...

, present on the

Isle of Wight The Isle of Wight ( ) is a Counties of England, county in the English Channel, off the coast of Hampshire, from which it is separated by the Solent. It is the List of islands of England#Largest islands, largest and List of islands of England#Mo ...

and marginally in

Swanage Swanage () is a coastal town and civil parish in the south east of Dorset, England. It is at the eastern end of the Isle of Purbeck and one of its two towns, approximately south of Poole and east of Dorchester. In the 2011 census the civi ...

. Its lithology consists of gritty, reddish-brown sands with pebbles and phosphatic nodules

References

Geologic formations of England Albian Stage Geology of Dorset Lower Cretaceous Series of Europe {{UK-geologic-formation-stub