Victorian Resources Online (archived)
MM807
| Site: MM807 | Land Unit: Hawksdale Basalt |
| Aust. Soil Class.: Ferric, ?, Brown CHROMOSOL (confidence level 4) | |
| General Land Unit Description: The gently undulating rises in the Hawkesdale area consists of Brown Chromosols with a ferric horizon above the clay, and also with bleached and unbleached A2 horizons. Some rises have a few scattered surface stones and there are minor occurrences of Ferric Black Chromosols, particularly on the lower slopes or drainage depressions. |
Site Description:
| Geology: Quaternary basalt | Landform pattern: Gently undulating rises |
| Position in landscape: Mid-slope | Internal drainage: Imperfectly drained |
| A1 | 0-10 cm | Very dark greyish brown (10YR3/2) clay loam, massive structure, weak consistence when dry and moderately moist, pH 6. Sharp transition to: |
| A2 | 10-30 cm | Light grey (10YR7/2) clay loam, sporadically bleached when dry, weak consistence when moderately moist, pH 6.3. Sharp transition to: |
| Subsoil | ||
| B21 | 30-60 cm | Brown (10YR4/3) medium clay, yellowish brown mottles (10YR5/8), moderate blocky structure (10-20 mm), firm consistence when moist and dry, many ferromanganiferous nodules, pH 6.6. Clear transition to: |
| B22 | 60+ cm | Yellowish brown (10YR5/6) medium clay, red mottles (2.5YR4/6), strong blocky structure (5-10 mm), firm consistence when moist and dry, a few ferromanganiferous nodules, pH 6.2. |
Key profile features:
- Strong texture contrast between topsoil and subsoil
- Ferromanganiferous nodules
- Mottled subsoil
