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The stratigraphic sequence of old land surfaces in northern Queensland

Created 17/10/2025

Updated 17/10/2025

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In northern Queensland there are several old land surfaces which are related to previous periods of erosional and depositional activity. The surfaces are of two main types - buried and exhumed unconformity surfaces formed during periods of active erosion and deposition; and terminal planation surfaces of both erosional and depositional origin which formed as stability returned at the end of each cycle of erosional activity. These terminal surfaces have generally been deeply weathered or duricrusted. The oldest landforms are exhumed unconformity surfaces of Cambrian and Mesozoic age which formed the base of the Georgina and Carpentaria Basins respectively. Three sets of unconformity and terminal surfaces are related to cycles of activity within the Cainozoic Karumba Basin. They have been correlated with surfaces elsewhere in Queensland and the Northern Territory. There are also subsidiary depositional surfaces of the current cycle, and a suite of arid landforms which has previously been treated as a surface.

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Field Value
Title The stratigraphic sequence of old land surfaces in northern Queensland
Language eng
Licence Not Specified
Landing Page https://data.gov.au/data/dataset/d1bf0b50-3c80-4c9e-ada5-cc78de77af46
Contact Point
Geoscience Australia Data
clientservices@ga.gov.au
Reference Period 20/04/2018
Geospatial Coverage
Map data © OpenStreetMap contributors
{
  "coordinates": [
    [
      [
        138.0,
        -22.0
      ],
      [
        146.0,
        -22.0
      ],
      [
        146.0,
        -10.0
      ],
      [
        138.0,
        -10.0
      ],
      [
        138.0,
        -22.0
      ]
    ]
  ],
  "type": "Polygon"
}
Data Portal Geoscience Australia

Data Source

This dataset was originally found on Geoscience Australia "The stratigraphic sequence of old land surfaces in northern Queensland". Please visit the source to access the original metadata of the dataset:
https://ecat.ga.gov.au/geonetwork/srv/eng/csw/dataset/the-stratigraphic-sequence-of-old-land-surfaces-in-northern-queensland