Marine geology of the continental shelf off southeast Australia

The Australian Ocean Data Network provides a dataset describing the marine geology of the continental shelf off southeast Australia between Sugarloaf Point and Gabo Island. It details shelf width variations, sediment types, terrace groups, submarine canyons, and the composition of surface sediments across inner, middle, and outer shelf zones. The dataset was last updated on 2026-06-27.

Use Cases

• Modeling shelf morphology and basement correlation based on described depth zones and terrace groups.
• Analyzing sediment distribution patterns based on described terrigenous and carbonate components.
• Studying geological history and tectonic activity based on described Cretaceous rifting and tilting events.
• Mapping submarine features based on the described ten canyons south of Jervis Bay.

Strengths

• Provides specific geographic scope and measurements, such as shelf width varying from 72 km to 17 km.
• Contains detailed geological descriptions including three depth-based terrace groups and sediment composition zones.
• Includes analysis of temporal geological processes, suggesting continued tilting since the Late Cretaceous.

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 the specific study region.

Provenance

Source

Australian Ocean Data Network

Collection Method

Likely based on seismic profiles and geological surveys.

Time Range

Covers geological processes from the Late Cretaceous to present.

Freshness

Last updated 2026-06-27 17:09:39.228136; freshness should be verified.

Geography

Continental shelf off southeast Australia between Sugarloaf Point and Gabo Island, New South Wales.