The soil is mostly London Clay, with patchy spreads of valley and plateau gravel.
2.
The plateau gravels support grassland, deciduous woodland and Scots pine, with small areas of heath land persisting on Wokefield Common which borders Burghfield Common to the south.
3.
The topsoil of the ditch indicates evidence of earlier plowing, and the overall composition changes across belts of chalk, valley and plateau gravel and clay with flints ( Bradley, 5 ).
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