Clay forming an extensive layer in south-eastern England, dating from the lower Eocene period.
伦敦粘土（源自早期始新世时期，在英格东南部形成面积广大的土层）
Example sentencesExamples
Colchester in Essex, where London clay underlies the estuaries, was the home of the renowned Pyfleet oysters.
For cooling the building during warm weather, naturally chilled groundwater is brought up from the aquifer through holes bored through 410 feet of London clay.
Residents in Southend, Westcliff and Leigh are likely to be hit particularly hard because the soil is predominantly London clay.