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Seabed gravel, mud and sand content in the Petrel sub-basin in the Australian continental EEZ 2012

Created 16/10/2025

Updated 16/10/2025

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This dataset provides the spatially continuous data of seabed gravel (sediment fraction >2000 µm), mud (sediment fraction < 63 µm) and sand content (sediment fraction 63-2000 µm) expressed as a weight percentage ranging from 0 to 100%, presented in 0.0025 decimal degree (dd) resolution raster grids format and ascii text file. The dataset covers the Petrel sub-basin in the Australian continental EEZ. This dataset supersedes previous predictions of sediment gravel, mud and sand content for the basin with demonstrated improvements in accuracy. Accuracy of predictions varies based on density of underlying data and level of seabed complexity. Artefacts occur in this dataset as a result of insufficient samples in relevant regions. This dataset is intended for use at the basin scale. The dataset may not be appropriate for use at smaller scales in areas where sample density is insufficient to detect local variation in sediment properties. To obtain the most accurate interpretation of sediment distribution in these areas, it is recommended that additional samples be collected and interpolations updated.

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Additional Info

Field Value
Title Seabed gravel, mud and sand content in the Petrel sub-basin in the Australian continental EEZ 2012
Language eng
Licence Not Specified
Landing Page https://data.gov.au/data/en/dataset/0e1b5d1b-19c4-4522-90a8-d9ef6d56e0e5
Contact Point
Geoscience Australia Data
clientservices@ga.gov.au
Reference Period 22/04/2018
Geospatial Coverage
Map data © OpenStreetMap contributors
{
  "coordinates": [
    [
      [
        125.2522,
        -15.579891
      ],
      [
        131.7497,
        -15.579891
      ],
      [
        131.7497,
        -9.584891
      ],
      [
        125.2522,
        -9.584891
      ],
      [
        125.2522,
        -15.579891
      ]
    ]
  ],
  "type": "Polygon"
}
Data Portal Geoscience Australia

Data Source

This dataset was originally found on Geoscience Australia "Seabed gravel, mud and sand content in the Petrel sub-basin in the Australian continental EEZ 2012". Please visit the source to access the original metadata of the dataset:
https://ecat.ga.gov.au/geonetwork/srv/eng/csw/dataset/seabed-gravel-mud-and-sand-content-in-the-petrel-sub-basin-in-the-australian-continental-e-20121