Clunch – this soft-stone building material used in Berwick Church … was created by the inundation of much of southern England, beginning 115 million years ago during the 'Cretaceous Period'.
|Beachy Head, on the edge of Eastbourne ...|
the Sussex Downs stretching westwards
towards Brighton and on ...
At that stage in earth's history the sea covered most of Britain and Europe … it is estimated that 98 million years ago the sea level was more than 20 metres (60.6 feet) higher than it is today …
|Cross Section of Wealden Down - showing|
the wearing away of sands, Gault clay and
chalk of the Downs
… it was a period with a relatively warm climate resulting in this high sea level, as well as numerous shallow inland seas.
|Global distribution of coccolithosphores|
in the oceans
The world was ice-free, forests extended to the poles … while different life forms waned and new ones appeared …
|False-colour scanning electron micrograph of|
Gephyrocapsa oceania, showing the coccoliths
… and the extensive beds of chalk were laid down from the shells of minute marine invertebrates, principally coccoliths, found in calcium carbonate in the waters.
|Examples of Four Invertebrates|
Different Phyla are: a Cnidarian;
an Arthropod; a Mollusk; and an Annelid
|Berwick Church from the east|
So in warmer times many moons ago England's white cliffs of Dover, our Sussex Downs coastline were being created … and the term 'clunch' was established.
Post on Berwick Church and how the 'Clunch stone' has been used in the restoration ...
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