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Upper Palaeozoic rocks, Bonaparte Gulf Basin of northwestern Australia

Created 17/10/2025

Updated 17/10/2025

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The Bonaparte Gulf Basin is a north-pitching syncline of Phanerozoic sediments, which are bounded to the south by Precambrian rocks and extend northward beneath the Timor Sea (Fig. 1). The landward part of the basin has been fragmented by faults, uplift, and erosion into a main outcrop area and three outliers. The eastern edge of the original depositional basin corresponds approximately with the present eastern margin, but the original extent to the south and west is unknown. Within the main outcrop is a Precambrian inlier, the Pincombe Inlier, which influenced deposition during the Upper Devonian and Lower Carboniferous. The main outcrop (Fig. 2) comprises Lower Cambrian volcanics, and Cambrian, Lower Ordovician, Upper Devonian, Carboniferous, Permian, Lower Triassic, and Lower Cretaceous sediments. The outliers contain only the lower part of this sequence, up to and including the lower part of the Upper Devonian.

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Additional Info

Field Value
Title Upper Palaeozoic rocks, Bonaparte Gulf Basin of northwestern Australia
Language eng
Licence Not Specified
Landing Page https://data.gov.au/data/dataset/068498f9-067e-49d9-b175-783dd14bd47d
Contact Point
Geoscience Australia Data
clientservices@ga.gov.au
Reference Period 20/04/2018
Geospatial Coverage
Map data © OpenStreetMap contributors
{
  "coordinates": [
    [
      [
        128.0,
        -16.0
      ],
      [
        130.0,
        -16.0
      ],
      [
        130.0,
        -14.0
      ],
      [
        128.0,
        -14.0
      ],
      [
        128.0,
        -16.0
      ]
    ]
  ],
  "type": "Polygon"
}
Data Portal Geoscience Australia

Data Source

This dataset was originally found on Geoscience Australia "Upper Palaeozoic rocks, Bonaparte Gulf Basin of northwestern Australia". Please visit the source to access the original metadata of the dataset:
https://ecat.ga.gov.au/geonetwork/srv/eng/csw/dataset/upper-palaeozoic-rocks-bonaparte-gulf-basin-of-northwestern-australia