Southern North West Shelf Deep Seismic Survey Report

A 1993 pre-cruise report details the SNOWS-3 deep seismic survey planned for the offshore Canning Basin. The Australian Geological Survey Organisation (AGSO) designed the program to acquire at least 3000 km of high-quality seismic data. This survey aimed to determine the deep crustal structure and its influence on hydrocarbon fields in the region.

Use Cases

• Analyze deep crustal structure using seismic reflection data down to 12 seconds two-way time.
• Correlate regional seismic stratigraphy by tying survey lines to specific exploration well locations.
• Assess structural controls on hydrocarbon plays by mapping boundaries between major structural elements.
• Model basin evolution by integrating long regional seismic lines from multiple survey cruises (SNOWS-1, SNOWS-2).
• Plan a crustal transect from the coast to Ocean Drilling Program Site 765 using specified recording parameters like streamer length and airgun capacity.

Strengths

• Pre-cruise plan specifies acquisition targets of 3000-3500 km of seismic data.
• Program ties data to principal exploration wells in the region for calibration.
• Builds upon prior surveys SNOWS-1 and SNOWS-2, which acquired 1654 km and 2800 km of data respectively.

Limitations

• Dataset is a pre-cruise planning document; actual acquired data and results are not included.
• Specific data columns, sample data, and final processed data files are unavailable.
• Temporal coverage is limited to the planned 1993 survey period; historical context relies on earlier reports.

Provenance

Source

Australian Ocean Data Network, originally from the Australian Geological Survey Organisation (AGSO).

Collection Method

Planned marine seismic acquisition using a 4800 m streamer and tuned airgun arrays.

Time Range

1993 (planned survey).

Freshness

null

Geography

Offshore Canning Basin, Southern North West Shelf, Australia, extending to the southeast Argo Abyssal Plain.