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The differential weathering of granitic rocks in Victoria, Australia

Created 16/10/2025

Updated 16/10/2025

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Landscape features such as positive relief and negative relief plutons and stepped topography are a result of differential weathering of granites. Features of the granitic bedrock that may influence its differential weathering include fracturing, mineralogical composition, crystal size, and hydrothermal alteration. A high modal biotite content and micro-fracturing increase susceptibility of granite to weathering in this region. Granites that are more susceptible to weathering tend to form less prominent landscape features (such as negative relief plutons) and are usually covered by deep weathering profiles and fluvial sediments. More resistant granites tend to form prominent landscape features, such as positive relief plutons and the crests of topographic steps. Examples of differential weathering are taken from plutons throughout the state, although particular emphasis is given to examples from the Wilsons Promontory Batholith and the west Victorian Highlands.

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Additional Info

Field Value
Title The differential weathering of granitic rocks in Victoria, Australia
Language eng
Licence Not Specified
Landing Page https://data.gov.au/data/dataset/707c588b-ef09-4392-ba0a-2bd555f78cca
Contact Point
Geoscience Australia Data
clientservices@ga.gov.au
Reference Period 20/04/2018
Geospatial Coverage
Map data © OpenStreetMap contributors
{
  "coordinates": [
    [
      [
        140.91,
        -39.5
      ],
      [
        150.21,
        -39.5
      ],
      [
        150.21,
        -33.99
      ],
      [
        140.91,
        -33.99
      ],
      [
        140.91,
        -39.5
      ]
    ]
  ],
  "type": "Polygon"
}
Data Portal Geoscience Australia

Data Source

This dataset was originally found on Geoscience Australia "The differential weathering of granitic rocks in Victoria, Australia". Please visit the source to access the original metadata of the dataset:
https://ecat.ga.gov.au/geonetwork/srv/eng/csw/dataset/the-differential-weathering-of-granitic-rocks-in-victoria-australia