Symbol: Dahs
Geology - Recent lacustrine (lake or swamp) deposits.
Landform - Lacustrine plain.
Soils
This soil is similar to Dalmore clay (non-peaty) but lacks the friable surface.
The surface soil of Dalmore clay (heavy surface) is about 100 mm deep and is a black medium to heavy clay. This overlies a dark grey plastic medium to heavy clay, which may become paler in colour and faintly mottled with yellow with depth. At about 1m depth, grey mottled with brownish yellow medium to heavy clays usually occur which continue to at least 1.8 m. Soil pit site information for a Dalmore clay (heavy surface) soil profile can be found for Site GP 24. These soils can be referred to as Epipedal, Black VERTOSOLS using the Australian Soil Classification (Isbell 1996).
Typical profile of Dalmore Clay (heavy surface)
0 - 100 mm. Very dark grey (black) medium to heavy clay, intractable moist, very hard dry, clear transition to: 100 - 900 mm approx. Very dark grey plastic heavy clay becoming paler in colour and mottled with yellow colors at depth, gradual transition to: 900 mm continuing to 1.5 m +. Grey impervious clay with brownish yellow mottles. |