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GL88

Site: GL88Land Unit: Digby
Aust. Soil Class.: Bleach-Mottled (& Ferric), ?, ?, CHROMOSOL (confidence level 4)



Soil pit GL88 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:

Geology: Cretaceous non-marine sandstoneLandform pattern: Undulating rises
Position in landscape: Upper slopeInternal drainage: Imperfectly drained

Key profile features:

  • Strong texture contrast between topsoil and subsoil
  • Bleached A2 horizon
  • Mottled subsoil
  • Ferric horizon
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