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Geology and hydrocarbon prospectivity of the deepwater Otway and Sorell basins, offshore southeastern Australia

Created 16/10/2025

Updated 16/10/2025

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As part of the Offshore Energy Security Program (2007-2011), Geoscience Australia (GA) undertook an integrated regional study of the deepwater Otway and Sorell basins to improve the understanding of the geology and petroleum prospectivity of the region. Major outputs of this study include:

New interpretations of basement architecture and structural fabric resulting in the recognition of the Avoca-Sorell Fault System as a major control on sedimentary basin development, Extension of the tectonostratigraphic framework of Krassay et. al. (2004) into the deepwater Otway and Sorell basins, leading to new insights into their structural and accommodation histories of both basins, and Petroleum systems modelling indicating that these basins are mature for oil and gas generation.

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Additional Info

Field Value
Title Geology and hydrocarbon prospectivity of the deepwater Otway and Sorell basins, offshore southeastern Australia
Language eng
Licence Not Specified
Landing Page https://data.gov.au/data/dataset/35d35550-2ce0-4112-ae62-9021bdbccf77
Contact Point
Geoscience Australia Data
clientservices@ga.gov.au
Reference Period 20/04/2018
Geospatial Coverage
Map data © OpenStreetMap contributors
{
  "coordinates": [
    [
      [
        138.0,
        -44.0
      ],
      [
        146.0,
        -44.0
      ],
      [
        146.0,
        -36.5
      ],
      [
        138.0,
        -36.5
      ],
      [
        138.0,
        -44.0
      ]
    ]
  ],
  "type": "Polygon"
}
Data Portal Geoscience Australia

Data Source

This dataset was originally found on Geoscience Australia "Geology and hydrocarbon prospectivity of the deepwater Otway and Sorell basins, offshore southeastern Australia". Please visit the source to access the original metadata of the dataset:
https://ecat.ga.gov.au/geonetwork/srv/eng/csw/dataset/geology-and-hydrocarbon-prospectivity-of-the-deepwater-otway-and-sorell-basins-offshore-southea1