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Nomada ferruginata
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Essex Field Club
Essex Field Club
registered charity
no 1113963
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EFC Centre at Wat Tyler Country ParkWe are normally open to the public on Saturdays, Sundays and bank holidays 11am-4pm, check. We are also open on Wednesdays 10am-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

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Noak Bridge road cutting, BASILDON, Basildon District, TQ69259024, General geological site

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Noak Bridge road cutting

Summary

In 1983, road improvements at the Basildon exit of the A127 (Southend Arterial Road) revealed a small expanse of weathered, chocolate brown London Clay with a layer of septarian nodules. The nodules were notable as they contained fine crystals of barite (barium sulphate) in the cavities. Barite is not uncommon in London Clay septarian nodules (see entry for Southend Cliffs in Southend-on-Sea district) but the crystals from this site were particularly lustrous and translucent.



A group of 3.5 centimetre long barite crystals from a temporary exposure of London Clay at Basildon. Photo © G. Lucy

 

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Reference: G.Lucy (personal communication)

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