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Yponomeuta evonymella
find out more... Yponomeuta evonymella 1 Copyright: Ben Sale

Essex Field Club
Essex Field Club
registered charity
no 1113963
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EFC Centre at Wat Tyler Country ParkIn January we are only open to the public at our centre at Wat Tyler Country Park on Wednesdays 10am-4pm.
Autumn recording Record Grey Squirrel Record Fly Agaric
Record Ivy Bee
Record Wild Teasel
Record Sloe, Blackthorn
Record Garden Spider Record Nigma walckenaeri spider

Geology Site Account

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St. Marys Church, Ardleigh, ARDLEIGH, Tendring District, TM05382955, General geological site

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Building containing stonework of geological interest.


Site description

Ardleigh church has a variety of colour from a diversity of local building materials in an attractive patchwork. The church has a medieval tower and south porch but most of the rest is nineteenth century. The finest craftsmanship is knapped flint flushwork, imported probably from Suffolk but there are numerous erratics, providing geological interest.

The erratic cobbles are no doubt from local fields or gravel pits and almost certainly come from the local Ardleigh Gravel, laid down by an ancestor of the Thames about 550,000 years ago. Particularly noticeable are the cobbles of ferricrete, a local iron-rich conglomerate of flint pebbles.


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Reference: Hart 2000

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