Lord Howe Rise Geophysical Data and Petroleum Prospect Analysis

Australian Ocean Data Network provides preliminary geophysical results for the Lord Howe Rise, a major submarine feature in the Tasman Sea. The dataset includes seismic profile interpretations, sediment thickness measurements up to 4000 meters, and analysis of potential petroleum source rocks and traps. It was last updated on 2026-06-27.

Use Cases

• Modeling sedimentary basin geometry based on described graben structures 20-40 km wide.
• Assessing petroleum prospectivity based on described potential source rocks, traps, and heat flow indicators.
• Reconstructing paleogeography based on seismic evidence of Late Cretaceous wave-base erosion and shallow marine environments.
• Planning deep-water drilling campaigns in areas with sediment thicknesses up to 4000 meters.

Strengths

• Includes specific geophysical measurements, such as sediment thickness up to 4000 meters and basin widths of 20-40 km.
• Describes concrete geological features like horst and graben structures and potential Late Cretaceous/Paleocene reefs.
• Cites specific data sources, including R.V. Sonne cruise survey data and DSDP Site 207.

Limitations

• Description metadata is limited; actual data quality requires manual inspection after download.
• Column-level documentation is absent; field semantics must be inferred after download.
• Row count is unknown, which may limit suitability assessment.

Provenance

Source

Australian Ocean Data Network

Collection Method

Likely contains geophysical survey data from research cruises, including R.V. Sonne, and analysis of seismic profiles.

Freshness

Last updated 2026-06-27 18:05:34.499957; freshness should be verified.

Geography

Lord Howe Rise, Tasman Sea, extending northwest from New Zealand, 600-1200 km off Australia's east coast.