Weald clay

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(Geol.) the uppermost member of the Wealden strata. See Wealden.

See also: Weald

References in periodicals archive ?
For 17 years we had struggled to make our conventional arable and dairy business profitable, but on heavy Low Weald clay, we could never compete with farms on lighter soils.
Drilling, using tried, trusted and safe conventional techniques, commenced with a 17y2-inch diameter vertical hole within the 300-metre thick Weald Clay rock unit, which directly underlies the well site.
'it's likened to lowland Britain in miniature: you have a little bit of the South Downs, a bit of Norfolk, some of the High Weald clay, and there's quite a distinct area along the south coast known as the undercliff, as well as iconic features such as the Needles.'