18-20 hrs: The geology group of the U3A in East Suffolk took itself off to Walton on the Naze to inspect cliff erosion, a wave-cut platform and lots of fossils.
This was hugely enjoyable - and I had no idea that Walton beach was such a rich source of geological examples of various kinds.
There is London clay at the foot of the cliff - which yields fossil wood and teeth - and much else if you know what to look for. Above the clay - there are levels of sand with a lot of coral and shells. The upper layers slump down onto the beach, as the picture shows. There are no signs of attempts to protect the cliffs here - which seems strange but at least leaves good features for us to ponder.
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