Laboratory number: | 1008 | Profile Description | |||
Site number: | 729 | A1 | 0 - 10 cm | Black (10YR 2/1) clay loam; strong crumb structure; rough-ped fabric; slightly hard when dry; 1% basalt fragments up to 5 mm; pH 6.0; clear boundary | |
Classification: | Northcote (1979) - Gn4.41 Stace et al. (1972) - Chocolate Soil | B1 | 10 - 30 cm | Dark brown (7.5YR 3/2) light clay; strong fine (5 mm) subangular blocky structure; rough-ped fabric; hard when dry; 3% basalt fragments up to 8 mm; pH 6.5; clear boundary | |
Location: | Traralgon 8221, grid ref. 613498 Road cutting Mount Tassie — Traralgon road 0.3 km N of Mount Tassie | B2 | 30 - 72 cm | Dark brown to brown (7.5YR 4/2) medium clay; moderate fine (5 mm) subangular blocky structure; rough-ped fabric; firm when moist; 30% basalt fragments up to 50 mm; pH 6.5; diffuse boundary | |
Land system, component: | Neerim, 5 | B3 | 72 - 90 cm | Strong brown (7.5YR 4/6) medium clay; moderate (3 mm) granular structure; smooth-ped fabric; 2% disintegrating yellowish brown and red basalt fragments up to 15 mm; pH 6.0 | |
Topography: | Crest slope of hill, 11% gradient | ||||
Elevation: | 680 m | ||||
Drainage: | Moderate | ||||
Parent material: | Tertiary basalt | ||||
Vegetation: | Cleared; predominantly Poa sp. with scattered Eucalyptus obliqua and Pomaderris aspera | ||||
LABORATORY ANALYSES 1008 | |||||||||||||||||||
Horizon | Sample Depth cm | Lab. texture | Particle size distribution | Atterberg limits | 1:5 soil water suspension | Clay mineralogy by x-ray diffraction | |||||||||||||
Gravel % | Coarse sand % f.e. | fine sand % f.e. | Silt % f.e. | Clay % f.e. | liquid limit % | plastic limit % | plasticity index % | linear shrinkage % | pH | EC 25°C uS/cm | Cl- % | Depth cm | Composition % | ||||||
A1 | 0-10 | SiL | 3 | 23 | 26 | 28 | 16 | 6.0 | 110 | 0.006 | |||||||||
B1 | 20-30 | SiCL | 0 | 9 | 27 | 27 | 31 | 69 | 42 | 27 | 17 | 6.3 | 72 | 0.003 | |||||
B2 | 32-60 | CL | <1 | 11 | 27 | 22 | 35 | 6.2 | 51 | 0.003 | |||||||||
B3 | 72-90 | C | 2 | 7 | 23 | 15 | 50 | 5.8 | 42 | 0.003 | |||||||||
Horizon | Sample Depth cm | Org. C % | Total N % | 1.3C N | Free Fe2O3 % | Available | HCl extract | Exchangeable cations | |||||||||||
P ppm | K ppm | P % | K % | Ca | Mg | K | Na | CEC | Ca % of CEC | Mg | K | Na | H | ||||||
Milliequivalents/100g | |||||||||||||||||||
A1 | 0-10 | 6.6 | 0.56 | 15 | 5.7 | 38 | 480 | 0.084 | 0.18 | 9.8 | 2.1 | 1.4 | 0.5 | 462 | 21 | 5 | 3 | 1 | 70 |
B1 | 20-30 | 3.0 | 0.30 | 13 | 5.8 | 11 | 260 | 0.056 | 0.13 | 7.7 | 1.8 | 0.8 | 0.3 | .4.4 | 22 | 5 | 2 | 1 | 70 |
B2 | 32-60 | 7.0 | 0.064 | 0.12 | 5.5 | 2.3 | 0.8 | 0.2 | 32.1 | 17 | 7 | 2 | 1 | 73 | |||||
B3 | 72-90 | 6.9 | 0.075 | 0.086 | 6.0 | 3.2 | 0.4 | 0.4 | 32.1 | 19 | 10 | 1 | 1 | 69 |