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Bucculatrix bechsteinella
find out more... Bucculatrix bechsteinella. Copyright: Stephen Rolls

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.
Early Summer recording Record Red-and-Black Froghopper Record Lavender Beetle
Record Stag Beetle
Record Misumena crab spider
Record Lily Beetle
Record Swollen-thighed Beetle Record Zebra Spider

Geology Site Account


Doggetts Pit, ROCHFORD, Rochford District, TQ87889147, General geological site

 
 
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Doggetts Pit provides the only exposures of Rochford Gravel. Rochford Gravel is an infilling of the Rochford Channel which is thought to have been cut by the Thames about 400,000 years ago (MIS 11) shortly after the diversion of the river by the Anglian ice sheet. The Rochford Channel is therefore an upstream equivalent of the famous Clacton Channel.

The well-bedded sandy gravel in Doggetts Pit is capped by a layer of brickearth or loam which has penetrated the underlying gravel in ice wedges, which were said to have been spaced at intervals of 10 to 15 metres along the old working face. Patterned ground with fossil ice-wedge polygons is present in the ad-jacent fields and can be seen on aerial photo-graphs. The site is now a popular fishing lake with sandy gravel exposed in the banks.



Alluvial loam, and 'brickearth' overlying Rochford Gravel seen in the disused pit at Doggetts in 1973. Photo © British Geological Survey (P211773).

 

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Reference: Bridgland et.al. 2001 (p.817,818), Lake et.al. 1986 (p.34 & 37)

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