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Lithological characteristics of the Lambeth Group

Underlying the London Clay throughout south and south east Britain are a group of highly variable sediments belonging to the Lambeth Group (formerly called the Woolwich and Reading Beds). The Lambeth Group comprises a mixture of stiff and hard clays, silts, sands and gravel which vary tremendously both laterally and vertically. Locally, these sediments are cemented with calcium carbonate, iron oxides and silica to form materials with relatively high strength. It is the variable lithology ...

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