Victorian Resources Online (archived)
GL66
| Site: GL66 | Land Unit: Monivae Basalt |
| Aust. Soil Class.: Vertic, Eutrophic, Brown CHROMOSOL (confidence level 2) | |
 | General Land Unit Description: The level to gently undulating basalt plains between Branxholm and Glenthompson consist of an association of Vertic or Ferric Brown Chromosols and Ferric Brown Sodosols. The Chromosols typically occur on the upper slopes and crests of very slight rises that may have scattered surface boulders, and Sodosols on the lower slopes and depressions. Sodosols or Vertosols, occasionally with a sporadic bleached subsurface horizon, are usually found in open depressions or drainage lines. |
Site Description:
| Geology: Quaternary basalt | Landform pattern: Plain |
| Position in landscape: Flat | Internal drainage: Moderately well drained |
| A11 | 0-15 cm | Very dark grey (10YR3/1) clay loam, strong subangular blocky structure (2-5 mm), very firm consistence when dry, pH 5.4. Transition to: |
| A12 | 15-30 cm | Very dark greyish brown (10YR3/2) light clay, massive structure, very firm consistence when dry, abundant small subrounded ferruginious and manganiferous nodules, pH 5.5. Transition to: |
| Subsoil | ||
| B21 | 30-50 cm | Brown (10YR4/3) medium heavy clay, moderate subangular blocky structure (2-5 mm), very firm consistence when dry, many small subrounded ferruginious and manganiferous nodules (2-6 mm), pH 6.1. Transition to: |
| B22 | 50-90 cm | Yellowish brown (10YR5/6) medium heavy clay, weathered gravel, red and orange mottles, weak structure, strong consistence when dry, abundant small subrounded ferruginious and manganiferous nodules, pH 6.7. Transition to: |
| B3 | 90-155 cm | Dark yellowish brown (10YR3/6) heavy clay, weathered gravel, red, orange and grey mottles, weak structure, consistence strong when dry, pH 7.3. Transition to: |
Key profile features:
- Acidic topsoil
- Strong texture contrast between topsoil and subsoil
- Sodic subsoil
- Ferromanganiferious horizons
- Mottled subsoil
- Subsoil cracks at depth
