GL86

Site: GL86	Land Unit: Digby
*Aust. Soil Class.:* Ferric, Eutrophic, Brown DERMOSOL (confidence level 1)

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: 9%	Geology: Cretaceous non-marine sandstone
Landform pattern: Undulating rises	Position in landscape: Lower mid-slope
Internal drainage: Moderately well drained

Soil Profile Morphology

A1	0-35 cm	Very dark greyish brown (10YR3/2) loamy sand, weak subangular blocky structure (10-15 mm), weak consistence when dry, pH 5.4; transition to:
A2	35-70 cm	Dark yellowish brown (10YR4/4) loamy sand, massive structure, pH 5.4; transition to:
	Subsoil
B1	70-85 cm	Yellowish brown (10YR5/6) sandy clay loam, many ferruginous nodules, pH 6.2; transition to:
B21	85-110 cm	Yellowish brown (10YR5/6) fine sandy light clay, many prominent red and orange mottles, pH 6.2; transition to:
B22	100-200+ cm	Yellowish brown (10YR5/6) sandy light medium clay, many prominent red and orange mottles, pH 6.2

Key profile features:

Strongly acidic topsoil
Deep sandy topsoil
Mottled subsoil
Many ferruginous nodules in B1 horizon

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