AGSO Survey 137: Deep Crustal Seismic Data from the Otway Basin, 1994-1995

Late 1994 to early 1995 deep crustal seismic data acquisition project across the offshore Otway Basin in south-eastern Australia. The survey, AGSO Survey 137, aimed to determine the basin's deep crustal architecture and characterize extensional processes. Data was recorded with a 4800 m streamer, a 49-litre airgun source, and differential GPS navigation.

Use Cases

• Modeling deep crustal architecture based on seismic reflectors down to 8-12 seconds.
• Analyzing extensional processes in sedimentary basins based on the survey's principal goals.
• Integrating seismic and aeromagnetic datasets to enhance basin architecture understanding.
• Testing concepts from aeromagnetic data interpretation using deep crustal seismic lines.

Strengths

• Survey designed to acquire approximately 4000 km of deep crustal seismic data.
• Used specific acquisition parameters: 4800 m streamer, 49-litre airgun arrays, and 48-fold CDP coverage.
• AGSO reported consistently obtaining high-quality deep seismic data with these parameters in other basins.

Limitations

• Column-level documentation is absent; field semantics must be inferred after download.
• Row count is unknown, which may limit suitability assessment.
• Data freshness should be verified; last metadata update was 2026-04-20 03:37:56.731189.

Provenance

Source

Geoscience Australia Data

Collection Method

Acquired via marine seismic survey using tuned airgun arrays and a streamer.

Time Range

Early December 1994 to late January 1995

Geography

Offshore Otway Basin, south-eastern Australia