MM507

Site: MM507

Land Unit: Lake Keilambete

Aust. Soil Class.: Bleached-Mottled, ?, Black CHROMOSOL (confidence level 4)

General Land Unit Description:
The gently undulating rises around Lake Keilambete, near Terang, consist of Ferric Black Chromosols. Sunflowers are successfully grown in this unit. There may be minor occurrences of friable Black Chromosols on the higher portions of the maar rim.

Site Description:

Geology: Quaternary basalt

Landform pattern: Gently undulating rises

Position in landscape: Mid slope

Internal drainage: Imperfectly drained

Soil Profile Morphology

0-15 cm

Very dark brown (10YR2/2) clay loam, weak structure, firm consistence when dry, pH 5.4. Gradual transition to:

15-50 cm

Brown clay loam, sporadically bleached (10YR7/2) when dry. Sharp transition to:

Subsoil

B21

59-65+ cm

Very dark greyish brown (10YR3/2) medium heavy clay, yellowish brown mottles are common, moderate blocky structure (10-20 mm), pH 6.0.

Key profile features:

Acidic topsoil

Mottled subsoil

Topsoil dispersive when worked when wet

Subsoil dispersive when worked when wet

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