Lord Howe Rise Geophysical Survey Data and Petroleum Prospectivity Analysis

The Lord Howe Rise submarine plateau in the Tasman Sea, extending about 2000 km long and 300 km wide, is the focus of this dataset. Preliminary geophysical results from surveys, including R.V. Sonne cruise data and DSDP Site 207, describe sediment-filled basins up to 4000 m thick and assess petroleum potential. The data was aggregated by the Australian Ocean Data Network and last updated in 2026.

Use Cases

• Assess petroleum prospectivity based on described potential source rocks, traps, and heat flow.
• Model basin evolution and tectonic history based on described horst and graben structures and rift-related features.
• Map sediment thickness and basin geometry using described basin widths of 20-40 km and sediment depths up to 4000 m.
• Reconstruct paleogeography and depositional environments based on Late Cretaceous wave-base erosion evidence and shallow marine indicators.

Strengths

• Describes a large, specific geographic feature approximately 2000 km long and 300 km wide.
• Includes quantitative measurements such as water depths (750-1200 m), basin widths (20-40 km), and sediment thicknesses (up to 4000 m).
• Integrates data from multiple sources, including R.V. Sonne cruise surveys and DSDP Site 207.

Limitations

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

Provenance

Source

Australian Ocean Data Network

Collection Method

Geophysical survey data (e.g., seismic profiles) and scientific analysis.

Freshness

Last updated 2026-06-16 22:28:34.408862; freshness should be verified.

Geography

Lord Howe Rise, Tasman Sea, off the east coast of Australia.