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Clepsis spectrana
find out more... Cyclamen Tortrix (Clepsis spectrana) 2 Copyright: Ben Sale

Essex Field Club
Essex Field Club
registered charity
no 1113963
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We are normally open to the public at our centre at Wat Tyler Country Park every Saturday, Sunday and bank holiday between 11am and 4pm. We are also usually open on Wednesdays between 10am and 4pm.

Spring recording Record your Robin Record Common Frog Rana temporaria
Record Alexanders Smyrnium olusatrum Record Tawny Mining Bee Andrena fulva
Record Dark-edged Bee Fly Bombylius major
Record Spring Flower Bee Anthophora plumipes
Record cuckoo bee Melecta albifrons

Geology Site Account


Stonebridge Hill Sarsen Stone, HALSTEAD, Braintree District, TL83782912, Potential Local Geological Site

 
 
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Stonebridge Hill Sarsen Stone, Halstead

A conspicuous sarsen (1.4 metres long) sits in front of Parley Beams Farm (TL 838 291) at Stonebridge Hill on the main road into Halstead. The upper surface of the stone contains holes that may have originally been rootlets at the time of the stone’s formation.

An account of the stone in the Transactions of the Essex Archaeological Society in 1893 (Armfield 1893) states that a much larger stone then lay next to it but this has now disappeared.

Sarsens are extremely hard boulders of sandstone formed around 55 million years ago when the climate of Britain was hot and a layer of sand beneath the surface of the ground became cemented with quartz. They are thus very resistant to erosion and have survived the rigours of the Ice Age. They probably originated on the chalk downland of south Cambridgeshire and after retreat of the ice they became concentrated in river valleys such as The Stour.



The sarsen stone outside Parley Beams Farm. Photo: G.Lucy

 

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Reference: Armfield 1893, Salter 1914

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