Site: GL76 | Land Unit: Annya Basalt |
Aust. Soil Class.: Bleach-Ferric, Eutrophic, Brown CHROMOSOL (deep sandy topsoil) (confidence level 1) |
| General Land Unit Description: This land unit consists of dissected gently undulating plains and undulating rises north of Mount Eckersley. The soils on the plains tend to be imperfectly drained with some low lying swamps. The rises tend to be slightly better drained, with a shallower A2 horizon, but still have the ferric horizon above the clay. This site has a deep sandy topsoil which is conspicuously bleached, indicating that the subsoil is frequently saturated. |
Site Description:
Geology: Quaternary basalt | Landform pattern: Gently undulating plain |
Position in landscape: Drainage depression | Internal drainage: Imperfectly drained |
Soil Profile Morphology
A11 | 0-10 cm | Very dark greyish brown (10YR3/2) loamy sand, weak subangular blocky structure (5-10 mm), weak consistence when dry, pH 5.9. Transition to: |
A12 | 10-25 cm | Dark brown (10YR3/3) sand, massive structure, weak consistence when dry, pH 6.1. Transition to: |
A21 | 25-40 cm | Brown (10YR5/3) fine sand, conspicuously bleached (10YR7/1) when dry, massive structure, weak consistence when dry, few medium ferruginisous and manganiferous nodules, pH 6.2. Transition to: |
A22 | 40-50 cm | Brown (10YR5/3) sand, conspicuously bleached (10YR7/1) when dry, massive structure, ferruginisous and manganiferous nodules are abundant, pH 5.9. Transition to: |
![]() | Subsoil | ![]() |
B2 | 50-75 cm | Yellowish brown (10YR5/4) light clay, many red, yellow and orange mottles, medium to weak subangular blocky structure (5-10 cm), very firm to strong consistence when dry, many weathered basalt fragments, pH 5.8. Transition to:[,p>] |
B3 | 75-90 cm | Brown (10YR5/3) light clay, weak to massive structure, very firm to strong consistence when dry, abundant weathered basalt fragments, pH 6-6.5. Transition to: |
C | 90+ cm | ![]() |
Key profile features: