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Red Breasted Merganser 3.
Hen Harrier 1. Female.
Wheatear 1. Female
Rock Pipit 1.
Red Throated Diver 1.
Red Necked Grebe 1.
MICHAEL PARKER
GEOLOGY GROUP MEETING TO WARDEN POINT, SHEPPEY
8th April 1984
A small group of five people arrived at this
coastal site on a dull Sunday morning. The
cliff at Warden Point is one of the best
exposures of London Clay (Lower Eocene) in the
London Basin. Fossils indicate that the London
Clay here ranges from about 50 m above the base
almost to the top of the formation, and are
identical in all respects, to those found in
Essex the apparent abundance being due solely to
rapid erosion and concentration on the foreshore
The London Clay contains layers of Septarian
nodules, some with radiating baryte and a little
pyrite, phosphatic nodules and botryoidal pyrite
nodules, some showing octahedral crystals.
Weathered clay near the surface contains clear
gypsum crystals (Var selenite) up to 20 cm long.
Fossil wood bored with Teredina was common. Fos
gastropods and sharks teeth were found but the
best specimen of the day was a large vertebra.
Surprisingly the fruits of Nipa palms were not
found.
DAVID TURNER