IT15

Site: IT15	Land Unit: Glenelg River Schists
*Aust. Soil Class.:* Ferric, ?, Yellow CHROMOSOL (confidence level 3)

General Land Unit Description:
This land unit comprises the dissected Cambrian Schist landscape of the Glenelg River and its tributaries. The major landform is rolling low hills. The major soil type is a strong texture contrast soil with many ferruginous nodules above the clay subsoil (Ferric Chromosol). The steep slopes which dominate this land unit is the major restriction for land use.

Site Description:

Geology: Cambrian schists	Landform pattern: Rolling low hills / rises
Position in landscape: Lower slope	Internal drainage: Moderately well drained

Soil Profile Morphology

A1	0-30 cm	Dark greyish brown (10YR4/2) sandy clay loam, weak polyhedral structure (2-5 mm), rough fabric, loose consistence when moderately moist, pH 5.5. Abrupt transition to:
A2	30-50 cm	Brown (10YR5/3) sandy clay loam, weak polyhedral structure (5-20 mm), rough fabric, very weak consistence when moderately moist, a few angular quartz fragments (2-6 mm), many ferruginous nodules (6-20 mm), pH 6.0. Abrupt transition to:
	Subsoil
B2	50-85 cm	Brownish yellow (10YR6/6) medium heavy clay, distinct red mottles are common, strong angular blocky structure (5-10 mm), smooth fabric, a few angular quartz fragments (2-20 mm), pH6.0. Diffuse transition to:
C	85+ cm	Mica schists.

Key profile features:

Strong texture contrast between topsoil and subsoil
Acidic topsoil
Ferric horizons

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