Project 121.30: Southern Lord Howe Rise Seismic Survey Data

A 1992 marine geophysical survey acquired approximately 3191 km of multichannel seismic data in the southern Lord Howe Rise and West Norfolk Ridge region. The project was conducted by the Australian Ocean Data Network to investigate the geological framework and assist with defining Australia's legal continental shelf. Data collection occurred over 21 days in November and December 1992, using a 3000 m streamer and 49 litre sleeve gun arrays.

Use Cases

• Modeling basin development and stratigraphy based on deep crustal seismic lines.
• Assessing hydrocarbon resource potential based on the region's structural features.
• Determining tectonic framework and crustal characteristics to understand 'ribbon continent' formation.
• Supporting legal definition of maritime boundaries based on acquired geophysical data.

Strengths

• Acquired 3191 km of seismic data with 30-fold coverage and 16-second records for deep crustal imaging.
• Data quality described as 'very good', with noise levels within specifications during calm weather periods.
• Survey designed with long regional lines extending from the Tasman Basin to the Norfolk Basin.

Limitations

• Column-level documentation is absent; field semantics must be inferred after download.
• Row count is unknown, which may limit suitability assessment.
• Data may reflect geographic bias inherent to the specific survey lines and time period.

Provenance

Source

Australian Ocean Data Network

Collection Method

Marine seismic survey using multichannel equipment and associated geophysical instruments.

Time Range

November-December 1992

Freshness

Last updated 2026-06-04 08:49:34.543588; freshness should be verified.

Geography

Southern Lord Howe Rise, southern New Caledonia Basin, West Norfolk Ridge region (Australia/New Zealand seabed boundary zone)