Lord Howe Rise Geophysical Survey Results and Petroleum Prospectivity

Australian Ocean Data Network provides preliminary geophysical results from the Lord Howe Rise, a major submarine feature in the Tasman Sea. The dataset includes interpretations of seismic profiles, sediment thickness, and basin structures relevant to petroleum exploration. It was last updated on 2026-06-23.

Use Cases

• Assessing petroleum prospectivity based on interpreted source rocks, traps, and heat flow indicators.
• Modeling basin evolution based on descriptions of sediment-filled grabens and rift-related structures.
• Mapping submarine geomorphology based on the described dimensions and water depths of the Lord Howe Rise.

Strengths

• Description provides specific geophysical details, including basin widths of 20-40 km and sediment thickness up to 4000 m.
• Spatial context is well-defined, noting the feature is 2000 km long, 300 km wide, and lies 600-1200 km off Australia's east coast.

Limitations

• Row count is unknown, which may limit suitability assessment.
• Column-level documentation is 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

Australian Ocean Data Network

Collection Method

Likely contains processed geophysical survey data, potentially from the R.V. Sonne cruise and DSDP Site 207.

Freshness

Last updated 2026-06-23 01:03:26.192198; freshness should be verified

Geography

Lord Howe Rise, Tasman Sea, off the east coast of Australia and northwest of New Zealand.