GL55

Site: GL55	Land Unit: Gorae Basalt
*Aust. Soil Class.:* Ferric, Natric, Brown KUROSOL (confidence level 1)

Soil pit GL55 auger

General Land Unit Description:
This land unit has a variety of soil types occurring over a short distance. This soil type, along with Ferrosols and Black Chromosols are found is association with the more dominant Ferric Brown Chromosols. The Brown Chromosols have been used to represent this area as they are deemed to be the major soil type, and due to restrictions of scale the other soil types have not been mapped as individual units. It must be noted however, that the better drained soils (Red Ferrosols / Dermosols) have a higher capability of supporting a range of land uses (e.g. viticulture) due to their favourable physical and chemical properties.

Site Description:

Slope: 2%	Geology: Quaternary basalt
Landform pattern: Gently undulating plan	Position in landscape: Lower slope
Internal drainage: Moderately well drained

Soil Profile Morphology

A1	0-25 cm	Dark greyish brown (10YR4/2), sandy clay loam, weak angular blocky structure, strong consistence when dry, few small ferromanganiferous nodules (2-4 mm), pH 6.0; clear transition to:
	Subsoil
B1	25-40 cm	Dark yellowish brown (10YR4/4) light clay, moderate angular to subangular blocky structure, consistence firm when dry, many small subrounded ferromanganiferous nodules (2-5 mm), pH 5.6; gradual transition to:
B21	40-75 cm	Yellowish brown (10YR5/4), light clay, faint medium orange and pale mottles are common, weak subangular blocky structure, consistence strong when dry, many small subrounded ferromanganiferous nodules (2-5 mm), pH 5.4; gradual transition to:
B22	75-135 cm	Yellowish brown (10YR5/4), light medium clay, many distinct medium red, orange and pale mottles, consistence firm when dry, moderate subangular blocky structure, small to medium subangular ferromanganiferous nodules (2-10 mm) are common, pH 5.5; diffuse transition to:
C	135-200 cm	Many distinct coarse red and orange mottles pH 5.3.

Key profile features:

Strongly acidic subsoil
Many ferromanganiferous nodules in subsoil
Mottled subsoil
Topsoil slightly dispersive when worked when wet

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