Laser Grain Size Data from 111 Leveque Shelf Seabed Sediment Samples

111 seabed sediment samples from the Leveque Shelf, Browse Basin were analyzed for grain size using a laser diffractometer. This dataset supports assessments of the area's CO2 storage potential and seabed habitat mapping, collected during a 2013 marine survey by Geoscience Australia.

Use Cases

• Analyze laser-measured grain size distributions across the 111 sediment samples to characterize seabed texture.
• Correlate sediment grain size data with seabed habitat and biota mapping from the same survey to identify biophysical associations.
• Use grain size composition as a baseline variable for geological models assessing CO2 containment potential in the Browse Basin.
• Investigate textural composition and carbonate content indicators within the sediment samples for evidence of past fluid seepage.

Strengths

• Includes 111 physically collected seabed sediment samples, providing a concrete sample set.
• Data originates from a targeted 2013 marine survey (SOL5754/GA0340) conducted by Geoscience Australia, an authoritative source.
• Grain size analysis performed with a laser diffractometer, a standard method for precise measurement.

Limitations

• Limited to 111 sample points, which may not provide dense spatial coverage of the entire Leveque Shelf area.
• Data is from a single 2013 survey, offering a temporal snapshot without time-series information.
• Specific column names and data structure are not provided in the input, complicating immediate analytical use.

Provenance

Source

Geoscience Australia, in collaboration with the Australian Institute of Marine Science.

Collection Method

Marine survey collecting seabed sediment samples, with subsequent laboratory grain size analysis via laser diffractometer.

Time Range

Survey undertaken in May 2013.

Freshness

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Geography

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