Location: Angus Vale
Australian Soil Classification: Haplic, Pedaric, Red CHROMOSOL
Previous Site Names: EG7, EG251
General Landscape Description: Undulating rises
Site Description: Upper slope of a low crest (4%)
Geology: Upper Devonian rhyolite
EG7 Landscape - Photo taken from pit site. The terrace of the Mitchell River is in the middle-ground |
A11 | 0-15 cm | Dark reddish brown (5YR3/2); fine sandy clay loam; moderate medium granular parting to fine granular structure; weak consistence moist; contains a few angular rhyolite cobbles; pH 5.9; gradual change to: | EG7 Profile |
A22 | 15-30 cm | Reddish brown (5YR4/4); fine sandy clay loam; moderate medium polyhedral structure; weak consistence moist; contains many angular rhyolite pebbles; pH 6.5; clear change to: | |
Subsoil | |||
B2 | 30-55 cm | Reddish brown (2.5YR4/4); medium clay, sandy; medium to strong polyhedral parting to fine polyhedral structure; firm consistence moist; few angular medium rhyolite pebbles present; pH 7.1; clear and wavy change to: | |
B3 | 55-90 cm | Reddish brown (5YR4/4); light clay, sandy; weak medium polyhedral structure; firm consistence moist; common angular fine rhyolite pebbles present; pH 7.3; clear and wavy change to: | |
C | 90+ cm | Weathering rhyolite. |
Horizon | Horizon Depth (cm) | pH (water) | pH (CaCl2) | EC dS/m | Organic Carbon % | Exchangeable Acididty meq/100g | Exchangeable Cations | Coarse Sand (0.2-2.0 mm) % | Fine Sand (0.02-0.2 mm) % | Silt (0.002-0.02 mm) % | Clay (<0.002 mm) % | Field Capacity % w/w | Wilting Point % w/w | |||
Ca | Mg | K | Na | |||||||||||||
meq/100g | ||||||||||||||||
A11 | 0-15 | 5.9 | 4.9 | 0.06 | 2.9 | 12.0 | 4.1 | 1.5 | 1.0 | 0.15 | 24 | 39 | 13 | 15 | 31.6 | 10.0 |
A12 | 15-30 | 6.5 | 5.4 | <0.05 | 0.77 | 6.4 | 4.9 | 1.8 | 0.58 | 0.13 | 35 | 38 | 10 | 16 | 23.0 | 7.1 |
B2 | 30-55 | 7.3 | 6.6 | <0.05 | 5.2 | 12.0 | 8.1 | 0.11 | 0.21 | 29 | 40 | 10 | 20 | 25.7 | 10.1 | |
B3 | 55-90 | 7.1 | 6.4 | <0.05 | 7.9 | 12.0 | 6.9 | 0.61 | 0.17 | 15 | 30 | 10 | 41 | 38.4 | 17.5 |