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

AGSO Survey 137 acquired approximately 4000 km of deep crustal seismic data across the offshore Otway Basin in southeastern Australia from early December 1994 to late January 1995. The survey aimed to determine the basin's deep crustal architecture and characterize extensional processes within the Southern Rift System. Data was recorded using a 4800 m streamer, a tuned airgun array, and differential GPS navigation.

Use Cases

• Model deep crustal architecture based on seismic reflection data down to 8-12 seconds.
• Analyze linkages between sedimentary basins based on survey goals to connect the Otway, Bass Basin, and Kanmantoo High.
• Integrate seismic and aeromagnetic datasets to test concepts for basin analysis.
• Study large-scale extensional processes based on the survey's focus on the Southern Rift System.
• Constrain crustal velocities using the refraction data recorded on key lines.

Strengths

• Approximately 4000 km of planned seismic line data.
• Specific acquisition parameters described: 4800 m streamer, 49 litre airgun source, 48-fold CDP coverage.
• Survey designed with clear principal goals for crustal architecture and process characterization.

Limitations

• Column-level documentation is absent; field semantics must be inferred after download.
• Row count is unknown, which may limit suitability assessment.
• Data files are in PDF and HTML formats, which may require extraction for computational analysis.

Provenance

Source

Australian Ocean Data Network

Collection Method

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

Time Range

Late 1994 to early 1995

Freshness

Last updated 2026-04-28 12:20:05.027672; freshness should be verified.

Geography

Offshore Otway Basin, southeastern Australia