GL84

Site: GL84	Land Unit: Digby
*Aust. Soil Class.:* Ferric, Bleached, Grey KUROSOL (confidence level 2)

Soil pit GL84 auger

General Land Unit Description:
As with the Merino Tablelands land unit, the Digby land unit also occurs on the Cretaceous nonmarine sandstone of the Merino Tablelands. The soils on the Digby land unit differ from the Merino Tablelands land unit as they tend to be slightly more acidic in the top of the subsoil and have more ferruginous nodules (Ferric Brown Chromosols). The division between the two land units is highlighted in recent radiometric imagery. Black Chromosols, Dermosols and Vertosols, similar to the Merino land unit also occur.

Site Description:

Slope: 8%	Geology: Cretaceous non-marine sandstone
Landform pattern: Undulating rises	Position in landscape: Lower slope
Internal drainage: Imperfectly drained

Soil Profile Morphology

A1	0-10 cm	Dark brown (10YR3/3) sandy loam, weak subangular blocky structure, pH 5.5; transition to:
A2	10-45 cm	Brown (10YR5/3) loamy sand, bleached (10YR8/1) when dry, massive structure, pH 6.5; transition to:
	Subsoil
B1	45-55 cm	Light medium clay, ferruginous nodules are abundant, pH 6; diffuse transition to:
B21	55-110 cm	Dark greyish brown (10YR4/2) light medium clay, many distinct yellow and orange mottles, weak to medium subangular blocky structure, pH 5; diffuse transition to:
B22	110-140 cm	Dark greyish brown (10YR4/2) medium clay, many prominent red and orange mottles, weak to medium structure, pH 5; transition to:

Key profile features:

Strong texture contrast between topsoil and subsoil
Bleached A2 horizon
Ferric horizon
Mottled subsoil
Strongly acidic subsoil

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