Australian Seabed Sediment Composition Grids

Seabed sediment data extracted from Geoscience Australia's MARine Sediment database. The dataset includes percentages of carbonate, mud, sand, and gravel size material in sediment samples across the Australian Exclusive Economic Zone. Data grids were created using ArcGIS Inverse Distance Squared Weighted methodology.

Use Cases

• Model seabed habitat suitability based on sediment grain size composition.
• Analyze carbonate distribution for marine biogeochemical studies.
• Map sediment transport patterns based on mud, sand, and gravel percentages.
• Assess geological resources within the Australian Exclusive Economic Zone.

Strengths

• Data covers the entire Australian Exclusive Economic Zone.
• Includes specific sediment parameters: carbonate percentage and mud/sand/gravel size fractions.
• Grids were created using a documented ArcGIS methodology (Inverse Distance Squared Weighted).

Limitations

• Row count and file size are unknown, limiting suitability assessment.
• Column-level documentation is absent; field semantics must be inferred after download.
• Last updated 2026-06-04 06:37:15.049645; freshness should be verified.

Provenance

Source

Geoscience Australia's MARine Sediment database (MARS).

Collection Method

Extracted from MARS database and gridded using ArcGIS Inverse Distance Squared Weighted methodology.

Freshness

Last updated 2026-06-04 06:37:15.049645.

Geography

Australian Exclusive Economic Zone.