From Geoscience Australia
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Basal Triassic tectonostratigraphy of the central North West Shelf

Created 16/10/2025

Updated 16/10/2025

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The Roebuck Basin has been the focus of a great deal of recent interest with some excellent exploration results, yet much of the basin remains poorly understood. To better understand the petroleum prospectivity of this region, Geoscience Australia is undertaking a regional study of the Triassic succession across the Roebuck Basin and parts of the adjacent Northern Carnarvon, Browse, and offshore Canning basins. Presented here are the initial results of extensive mapping of the basal Triassic unconformity (TR10.0 sequence boundary), showing improvement in the resolution of previously identified features and the identification of new basin features This is a Petroleum Exploration Society of Australia (PESA) News article promoting new work by the NWMES team. Updated interpretation of the Tr10.0 sequence boundary in the Roebuck Basin and surrounds as part of the Triassic and Older Source Rocks Study.

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Field Value
Title Basal Triassic tectonostratigraphy of the central North West Shelf
Language eng
Licence Not Specified
Landing Page https://data.gov.au/data/dataset/cac5d0c8-1def-4318-95be-8f4073278cac
Contact Point
Geoscience Australia Data
clientservices@ga.gov.au
Reference Period 10/07/2018 - 02/08/2018
Geospatial Coverage
Map data © OpenStreetMap contributors
{
  "coordinates": [
    [
      [
        115.0,
        -20.0
      ],
      [
        121.0,
        -20.0
      ],
      [
        121.0,
        -15.0
      ],
      [
        115.0,
        -15.0
      ],
      [
        115.0,
        -20.0
      ]
    ]
  ],
  "type": "Polygon"
}
Data Portal Geoscience Australia

Data Source

This dataset was originally found on Geoscience Australia "Basal Triassic tectonostratigraphy of the central North West Shelf". Please visit the source to access the original metadata of the dataset:
https://ecat.ga.gov.au/geonetwork/srv/eng/csw/dataset/basal-triassic-tectonostratigraphy-of-the-central-north-west-shelf