Laser Grain Size Data from Leveque Shelf Seabed Sediments

One hundred and eleven seabed sediment samples were collected from the Leveque Shelf in May 2013 to assess CO2 storage potential. The dataset contains results from grain size analysis performed using a laser diffractometer. It was gathered by Geoscience Australia in collaboration with the Australian Institute of Marine Science under the National CO2 Infrastructure Plan.

Use Cases

• Correlate sediment grain size distribution with seabed habitat types mapped during the survey.
• Analyze grain size composition to identify evidence of past or current gas seepage near geological faults.
• Assess textural properties of seabed sediments for containment potential in proposed CO2 storage units.
• Model the relationship between sediment carbonate content and regional geological integrity of seal formations.

Strengths

• 111 seabed sediment samples provide a substantial physical sample set.
• Analysis performed using a standardized laser diffractometer method for grain size.

Limitations

• Dataset size is unknown, with no row count or sample data provided for verification.
• Limited to a single survey area (Leveque Shelf) from 2013, reducing geographic and temporal scope.

Provenance

Source

Australian Ocean Data Network, originating from Geoscience Australia and the Australian Institute of Marine Science.

Collection Method

Marine survey (SOL5754/GA0340) collecting physical sediment samples, with lab analysis via laser diffractometer.

Time Range

May 2013.

Freshness

Data collected in May 2013, with metadata last updated in 2026.

Geography

Leveque Shelf, Browse Basin, Northwest Shelf, Western Australia.