Lord Howe Rise Geophysical Survey Results and Petroleum Prospect Analysis

A 2000 km long submarine feature in the Tasman Sea, the Lord Howe Rise is described with water depths of 750 to 1200 m and sediment basins containing up to 4000 m of material. The dataset from Geoscience Australia presents preliminary geophysical results, including seismic profiles and interpretations of potential petroleum source rocks and traps. It was last updated on 2026-04-30.

Use Cases

• Assessing petroleum prospectivity based on described sediment thickness and basin structures.
• Modeling the tectonic evolution of the Tasman Sea based on interpretations of rift-related graben structures.
• Identifying potential hydrocarbon traps based on described boundary faults and internal basin structures.
• Correlating geological history with other regions using paleogeographical reconstructions mentioned in the description.

Strengths

• Describes a major submarine feature approximately 2000 km long and 300 km wide.
• Identifies sediment basins with up to 4000 m of sediment and a sedimentary wedge up to 2000 m thick.
• Includes interpretations of potential petroleum source rocks, traps, and seals based on seismic data.

Limitations

• Row count and specific column-level documentation are absent; field semantics must be inferred after download.
• Data freshness should be verified despite the 2026 update date, as the underlying survey data is likely older.

Provenance

Source

Geoscience Australia Data

Collection Method

Preliminary results from geophysical surveys, including R.V. Sonne cruise data and DSDP Site 207 information.

Freshness

Last updated 2026-04-30 14:19:54.611392; freshness should be verified.

Geography

Lord Howe Rise, Tasman Sea, approximately 600 to 1200 km off the east coast of Australia.