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EAST WEAR BAY - FOLKESTONE
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November 2000
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East Wear
Bay is situated at the eastern end of the Folkestone section. The foreshore
is covered by sand throughout the summer and the Gault Clay becomes exposed
on the beach after the first autumn storms, usually towards the end of
October each year and covered with sand again around the end of March. |
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In recent
years there have been accessible Gault exposures in East Wear Bay for
about four months of each year. |
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Exceptionally, Beds I through X (the whole of the Middle
Albian and lower Late Albian) may be exposed in various places on the
foreshore and fossils can be found in all of these. Currently
large areas of the less fossiliferous Upper Gault is exposed. Fossils
are washed out with each tide and after storms and relatively easy to
collect but most are fragmentary and complete specimens scarce. The "mammillatum" Zone at the top of the Folkestone Beds is accessible on the foreshore
reefs. |
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10 November 2000. In the background you
can see Folkestone Warren and the westernmost start of the famous "White
Cliffs of Dover" which at this point are Upper Cretaceous (Lower/Middle
Chalk - Cenomanian through Turonian) in age. In the foreground the Lower
Cretaceous (Gault Clay) is exposed on the foreshore after recent storms
and beach-heave following a continuing "graben" rotational slip
in the low cliffs behind. |
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This example of beach-heave happened
on 4th November 2000 when it was possible to observe the clay rising out
of the beach over a two-hour period. There was no visible movement in
the cliffs. This particular exposure is Upper Gault (Late Albian) in age
(Bed IX Hysteroceras orbignyi Subzone). |
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12 November 2000 - Standing on the concrete
apron in front of the Warren Camp Site and facing Folkestone. East Wear
Bay (marked) is at the end of the sea defence. The lower cliff has been
scoured and along with it most of the surface fossils. The retreating
spring high tide has moved sand onto the beach instead of removing it. |