Geology Silurian sedimentary rock, usually mudstone, generally occurring at between 1 and 2 metres depth. Landform Undulating to rolling low hills. Soils The surface soils are generally dark grey or greyish brown very fine sandy clay loams to silty clay loams. At about 10 cm a bleached zone occurs, similar in texture to the above layer. Yellowish brown mottled with light grey, medium to heavy clays occur at 35 to 50 cm, with a zone of ironstone concretions above the clay. |