MARS: Marine Sediment Characteristics for Australia's Seabed

Over 40,000 seabed sediment samples from Australia's marine jurisdiction, including the Antarctic Territory and Great Barrier Reef. The database, managed by Geoscience Australia, contains approximately 200,000 records detailing grain size, carbonate content, mineralogy, and geochemical properties. New data are added as they become available.

Use Cases

• Predict sediment type distribution based on grain size and carbonate concentration data.
• Analyze geochemical trends in seabed samples using mineralogy and element concentration records.
• Model physical seabed properties using down-core attributes like bulk density and porosity.
• Map sediment characteristics spatially using the provided sample location and water depth data.

Strengths

• Contains over 40,000 sample and sub-sample records with approximately 200,000 associated characteristic records.
• Includes a wide range of quantitative analyses such as grain size, carbonate content, mineralogy, and geochemistry.
• Covers a broad geographic area including Australia's full marine jurisdiction and the Australian Antarctic Territory.

Limitations

• Column-level documentation is absent; field semantics must be inferred after download.
• The provided metadata is noted as non-authoritative; users must contact Geoscience Australia for authoritative details.
• The temporal coverage for the listed sample properties is specified only for data from 2010-2015, suggesting potential gaps.

Provenance

Source

Geoscience Australia via the Australian Ocean Data Network.

Collection Method

Samples collected via core, dredge, grab, water, column, and camera methods from survey campaigns.

Freshness

Last updated 2026-07-16 01:41:25.176650; freshness should be verified.

Geography

Australia's marine jurisdiction, including the Australian Antarctic Territory and the Great Barrier Reef.