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MM387

Site: MM387Land Unit: Skipton Basalt
Aust. Soil Class.: Bleached-Ferric, ?, Brown CHROMOSOL (confidence level 3)

General Land Unit Description:
This land unit consists predominantly of gently undulating plains around Skipton. There are some steeper slopes leading to the major drainage lines as well as those coming off Naminia Hill. The soils are variable, reflecting the complex landform in this land unit. Ferric Brown and Grey Sodosols occur chiefly on the lower slopes, and Bleach-Ferric Brown Chromosols occur on the plains and slopes. Areas of gilgai microrelief are usually found in this unit and the soils associated with these areas are commonly Black Chromosols with minor occurrences of Brown Chromosols. The soils on the mounds and in the depressions are similar apart from those on the mounds having shallower surfaces. A few scattered surface stones may occur on the upper slopes and crests of some rises.

Site Description:
Geology: Quaternary basaltLandform pattern: Undulating rises
Position in landscape: Upper slopeInternal drainage: Moderately well to well drained

Soil Profile Morphology

A10-15 cmBrown (10YR4/3) clay loam, ferromanganiferous nodules are common, pH 4.7. Clear transition to:

A215-55 cmPale brown (10YR6/3) clay loam, conspicuously bleached (10YR8/1) when dry, ferromanganiferous nodules are abundant; Sharp transition to:

Subsoil
B2155-80 cmBrown (10YR5/3) medium clay, red mottles (2.5YR4/6), moderate blocky structure (5-10 mm), pH 6.4.

B2280+ cmLight brownish grey (2.5Y6/2) medium clay, yellowish brown mottles (10YR5/6), moderate blocky structure (5-10 mm), pH 6.5.

Key profile features:

  • Strongly acidic topsoil
  • Bleached A2 horizon
  • Mottled subsoil
  • Ferromanganiferious nodules are abundant in A2 horizon
Soil pit MM387 graphs
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