Gravity Field of Offshore Australia with Regional Provinces and Crustal Analysis

Geoscience Australia Data provides a regional analysis of the free-air and Bouguer gravity anomaly fields offshore Australia. The data is divided into about fifty provinces characterized by uniformity of trend, anomaly level, or degree of disturbance. This dataset discusses these provinces in relation to structural and bathymetric features, crustal thickness variations, and isostatic equilibrium.

Use Cases

• Mapping crustal thickness variations based on Bouguer anomaly values mentioned in the description.
• Analyzing isostatic equilibrium of continental shelves and plateaus based on regional free-air anomaly values.
• Correlating gravity anomaly provinces with structural elements on the continental shelf as described.
• Studying the gravity edge effect at the continental slope based on described anomaly ridges and troughs.

Strengths

• Analysis covers about fifty distinct regional gravity provinces.
• Discusses specific geological features like the Lord Howe Island seamount chain and the Timor Sea area.
• Provides interpretation linking gravity data to crustal thickness and isostatic concepts.

Limitations

• Column-level documentation is absent; field semantics must be inferred after download.
• Row count is unknown, which may limit suitability assessment.
• Data freshness should be verified despite the listed 2026 update date.

Provenance

Source

Geoscience Australia Data

Freshness

Last updated 2026-04-30 14:25:20.837850; freshness should be verified.

Geography

Offshore Australia