Well not yet and maybe never as the underlying soil is largely clay and sand and not the fossil rich chalk of other areas.
Our soil was formed from the river beds and offshoot streams of the ancient Thames.
And Then Came the Ice Age
Well, not recently as far south as here, with the ice sheets of the last Ice Age stopping some way to the north. However, migrating animals from the north as the climate cooled would have brought humans in their wake, desperate to survive in such harsh conditions. Early Stone Age (Paleolithic) man certainly lived in the Clacton area, not too far up the coast.
We live in hope of digging up our own woolly mammoth (or even the axes of the early men who hunted it) – Maybe if we dig deep enough?