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MM506

Site: MM506Land Unit: Lake Keilambete
Aust. Soil Class.: Bleached-Mottled, ?, Black CHROMOSOL (confidence level 3)

Soil pit MM506 landscapeGeneral 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 basaltLandform pattern: Gently undulating plains
Position in landscape: Mid slopeInternal drainage: Imperfectly drained

Soil Profile Morphology

A10-20 cmVery dark greyish brown (10YR3/2) clay loam, massive structure, firm consistence when dry, pH 5.6. Clear transition to:

A220-50 cmLight grey (10YR7/2) silty clay loam, sporadically bleached, ferromanganiferous nodules are common. Sharp transition to:

Subsoil
B2150-85 cmVery dark grey (10YR3/1) medium heavy clay, dark yellowish brown mottles (10YR4/4), strong blocky structure (20-50 mm), smooth fabric, ferromanganiferous nodules are common, pH 6.2. Gradual transition to:

B2285+ cmDark brown (10YR3/3) heavy clay, yellowish brown mottles (10YR5/6), strong blocky structure (20-50 mm), pH 6.1.

Key profile features:

  • Strong texture contrast between topsoil and subsoil
  • Mottled subsoil
  • Feromanganiferious are common
  • Topsoil dispersive when worked when wet
  • Subsoil dispersive when worked when wet
Soil pit MM506 graphs
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