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Global sea-level change as a method of correlating the Late Permian coal measures in the Sydney, Gunnedah, and Bowen Basins, eastern Australia

Created 17/10/2025

Updated 17/10/2025

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Eustatic changes in sea level can be used to correlate sequences in widely separated areas. Thick terrestrial sequences with marine intercalations are especially suitable, provided the marine beds are not the result of tectonic subsidence. The method has been used to correlate Late Permian coal measures in the Sydney, Gunnedah, and Bowen Basins. The Dempsey Formation and its equivalents in the Sydney Basin, an unnamed correlative in the Gunnedah Basin, and the Black Alley Shale and MacMillan Formation in the Bowen Basin have been identified as being deposited during the same eustatic highstand, a result consistent with palynological conclusions. The Kulnura Marine Tongue (Sydney Basin) and the lower Burngrove Formation (Bowen Basin), on the other hand, owe their origin to tectonism. The correlations indicate that deposition of Late Permian coal measures began in the Bowen Basin later than in the Sydney and Gunnedah Basins, a conclusion that appears to be supported by marine macrofossil studies.

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Title Global sea-level change as a method of correlating the Late Permian coal measures in the Sydney, Gunnedah, and Bowen Basins, eastern Australia
Language eng
Licence Not Specified
Landing Page https://data.gov.au/data/dataset/81cae1b9-1c1c-4392-b70b-9dc780a46632
Contact Point
Geoscience Australia Data
clientservices@ga.gov.au
Reference Period 20/04/2018
Geospatial Coverage
Map data © OpenStreetMap contributors
{
  "coordinates": [
    [
      [
        144.13,
        -35.81
      ],
      [
        154.24,
        -35.81
      ],
      [
        154.24,
        -17.55
      ],
      [
        144.13,
        -17.55
      ],
      [
        144.13,
        -35.81
      ]
    ]
  ],
  "type": "Polygon"
}
Data Portal Geoscience Australia

Data Source

This dataset was originally found on Geoscience Australia "Global sea-level change as a method of correlating the Late Permian coal measures in the Sydney, Gunnedah, and Bowen Basins, eastern Australia". Please visit the source to access the original metadata of the dataset:
https://ecat.ga.gov.au/geonetwork/srv/eng/csw/dataset/global-sea-level-change-as-a-method-of-correlating-the-late-permian-coal-measures-in-the-sydney