MM575
| Site: MM575 | Land Unit: Bald Hill Basalt |
| Aust. Soil Class.: Mottled-Sodic, ?, Brown CHROMOSOL (confidence level 3) | |
| General Land Unit Description: This unit occurs on Bald Hill and consists of Brown Chromosols or Dermosols usually occurring on mid or lower slopes and shallow friable soils (Rudosols) on the rocky upper slopes. Shallow friable Rudosols are usually dominant on the areas that are completely strewn with basalt boulders and stones. |
Site Description:
| Geology: Quaternary basalt | Landform pattern: Cone |
| Position in landscape: Lower slope | Internal drainage: Moderately well to imperfectly drained |
| A11 | 0-15 cm | Dark reddish brown (5YR3/3) clay loam, structureless, pH 5. Clear transition to: |
| A12 | 15-30 cm | Reddish brown (5YR4/4) light clay. Sharp transition to: |
 | Subsoil | |
| B21 | 30-50 cm | Brown (7.5YR4/4) medium clay, red mottles (2.5YR4/6), moderate blocky structure (10-20 mm), smooth fabric, pH 6.6. Gradual transition to: |
| B22 | 50+ cm | Greyish brown (2.5Y5/2) heavy clay, strong blocky structure (20-50 mm), smooth fabric, pH 8.4. Sharp transition to: |
Key profile features:
- Strongly acidic topsoil
- Mottled subsoil
- Deeper subsoil strongly sodic
- Deeper subsoil dispersive when dry
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