|These soils are found on Quaternary alluvium or colluvium, mainly in low-lying areas such as swamps or terraces between the basic volcanic plains and sedimentary plains terrain, as well as within those terrain types.|
These soils have organic surface soils which may be quite deep (30–40 cm) and may have high clay contents making them similar to the (vertic) cracking clay soils (Soil Group 31). Some soils may have shallow marine deposits (shell fragments) underlying them (CLRA1). These soils are often deep (>150 cm) with structured clay with vertic (shrink-swell) properties. An A2 horizon may be present but is generally not bleached. Most soils are not sodic even in the lower subsoil.
Notable characteristics are a gradational profile, which may have medium or heavy textures, surface soils are generally friable and soils generally are deep.
1:100 000 mapsheet
|Flat||Melanic, Eutrophic, Grey Dermosol, Vertosol||Gn3.93, Ug5.28||T7721 - Geelong|
|Flat||Haplic, Self-Mulching, Black Vertosol||Ug5.16||T7621 - Colac|
|Terrace crest||Melanic, Eutrophic, Black Kandosol||Gn2.02||T7721 - Geelong|
|Terrace||Acidic, Mesotrophic, Brown Dermosol||Gn3.04||T7520 - Princetown|
|Flat||Melacic (& Vertic), Eutrophic, Black Dermosol||Gn3.41||T7521 - Corangamite|
|Flat||Humose, Dermosolic, Redoxic Hydrosol||Gn3.91||T7520 - Princetown|
|Flat||Humose, Kurosolic, Redoxic Hydrosol||Dy3.11||T7520 - Princetown|
|Flat||Humose-Acidic, Tenosolic, Redoxic Hydrosol||Uc4||T7520 - Princetown|