Bucks Earth Heritage GroupGreat OoliteThe Great Oolite is a series of limestones and clays deposited from 164 to 175 million years ago when Buckinghamshire lay within a tropical zone very similar to the Bahamas or Florida Keys of today. The limestones and some fossils can be seen all over north Bucks as building stones and is seen in situ in Coombs Quarry, which can be visited. (Please do not hammer the faces, but you may collect from the loose blocks in the waste piles).
Typical lithology of the Great Oolite - a gritty limestone with lots of fossils, mostly moulds
Gastropds (moulds)
A mass of serpulids - worms that secrete a calcareous tube in which to live and that is attached to a hard surface.
Sea urchins are common in some beds
|
