Australian Seabed Sediment Properties for Over 15,000 Samples

Geoscience Australia provides sediment property data for over 15,000 seabed samples from the Australian marine region. The dataset includes textural composition, particle size statistics, calcium carbonate values, and associated location and water depth information. It is derived from the national Marine Sediment Database (MARS), which holds approximately 2.6 million entries.

Use Cases

• Seabed characterisation based on sediment texture and particle size distribution data.
• Sediment transport modelling using grain size statistics and location data.
• Habitat characterisation leveraging textural class and carbonate content information.
• Seabed engineering studies informed by sediment properties and water depth.
• Fundamental geological research using the continental-scale sample collection.

Strengths

• Over 15,000 seabed samples provide a substantial observational basis.
• Spatial coverage spans the coast, shelf, slope, and deep ocean across the Australian region.
• Derived from a national database (MARS) containing approximately 2.6 million entries.

Limitations

• Column-level documentation is absent; field semantics must be inferred after download.
• Row count is unknown, which may limit suitability assessment.
• Data may reflect geographic bias inherent to data_gov_au survey locations.

Provenance

Source

Geoscience Australia Data

Collection Method

Extracted and collated from the Marine Sediment Database (MARS).

Freshness

Last updated 2026-03-25 19:02:46.685617; freshness should be verified.

Geography

Australian marine region, covering the extent of the AusBathyTopo 250m 2023 grid.