Location: Kewell.
Soil Type: Minor Type C
Australia Soil Classification: Endocalcareous-Endohypersodic, Self-Mulching, Grey VERTOSOL
Northcote Factual Key: Ug 5.28
Great Soil Group: grey clay
General Description: Playa plain within a gently undulating plain.
Geology: Quaternary Woorinen Formation: aeolian dune sand, calcareous clay
Soil Profile Morphology:
Surface Soil
A11 | 0-20 cm | Dark grey (7.5YR4/0) light clay; subplastic; cracking, self-mulching surface condition; weak subangular blocky structure; very weak consistence dry, slightly sticky consistence wet; pH 8.0: | |
A12 | 20-35 cm | Dark grey (7.5YR4/0) light clay; subplastic; weak subangular blocky structure; very weak consistence dry, slightly sticky consistence wet; pH 8.4; sharp change to: | |
Subsoil | |||
B21k | 35-80 cm | Light brownish grey (2.5Y6/2) light clay; plastic; weak subangular blocky structure; strong consistence dry, moderately sticky consistence wet; contains a slight (2-10%) amount of hard and soft carbonate; pH 9.0; gradual change to: | |
B31k | 80-110 cm | Pale olive (5Y6/3) medium clay; plastic; weak subangular blocky structure; strong consistence dry, moderately sticky consistence wet; contains a moderate (20-50%) amount of soft and hard carbonate; pH 9.3; gradual change to: | |
B32k | 110-150 cm | Pale olive (5Y6/3) with yellowish brown (10YR5/6) mottled medium clay; plastic; weak subangular blocky structure; strong consistence dry, moderately sticky consistence wet; contains a moderate (20-50%) amount of soft and hard carbonate; pH 9.5; gradual change to: | |
B33k | 150-205 cm | Pale olive (5Y6/3) with yellowish brown (10YR5/6) mottled heavy clay; plastic; strong coarse blocky structure; strong consistence dry, slightly sticky consistence wet; contains a slight (2-10%) amount of soft carbonate; pH 9.5. |
Horizon | Sample Depth cm | pH | EC dS/m | Sodium Chloride % | Exchangeable Calcium cmol-/kg | Exchangeable Magnesium cmol-/kg | Exchangeable Potassium cmol-/kg | Exchangeable Sodium cmol-/kg | Exchangeable Aluminium mg/kg | Exchangeable Acidity cmol-/kg | Field Capacity -30okPa | Permanent Wilting Point -1500okPa | Coarse Sand % | Fine Sand % | Silt % | Clay % | |
H2O | CaCl2 | ||||||||||||||||
A11 | 0–20 | 8.0 | NA | 0.14 | 0.01 | 24.6 | 4.4 | 2.8 | 0.1 | NA | 3.8 | NA | 19.6 | 14 | 18 | 15 | 51 |
A12 | 20–35 | 8.4 | NA | 0.19 | 0.01 | 25.1 | 5.6 | 1.9 | 0.2 | NA | 2.8 | NA | 22.9 | 12 | 15 | 9 | 61 |
B21 | 35–80 | 9.0 | NA | 0.22 | 0.01 | 15.3 | 5.9 | 1.5 | 0.9 | NA | NA | NA | 18.0 | 10 | 12 | 9 | 43 |
B31 | 80–110 | 9.3 | NA | 0.47 | 0.05 | 9.4 | 8.7 | 1.9 | 4.4 | NA | NA | NA | 19.5 | 9 | 10 | 4 | 49 |
B32 | 110–150 | 9.5 | NA | 0.77 | 0.11 | 5.2 | 9.6 | 2.2 | 8.4 | NA | NA | NA | 20.2 | 8 | 10 | 6 | 52 |
B33 | 150–205 | 9.5 | NA | 0.11 | 0.17 | NA | NA | NA | NA | NA | NA | NA | 23.0 | 8 | 11 | 5 | 53 |