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

AGSO Survey 137 proposed acquiring approximately 4000 km of deep crustal seismic data across the offshore Otway Basin in southeastern Australia from December 1994 to January 1995. The survey, conducted by the Australian Ocean Data Network, aimed to determine the basin's crustal architecture and link it to surrounding geological features. It integrated seismic refraction data with aeromagnetic data to enhance understanding of basin formation within the Southern Rift System.

Use Cases

• Model deep crustal architecture based on seismic reflection and refraction data.
• Analyze extensional processes in sedimentary basins based on the survey's focus on the Southern Rift System.
• Integrate seismic and aeromagnetic datasets to test concepts for basin characterization.
• Evaluate seismic acquisition parameters (e.g., 48-fold coverage, 16-second record length) for data quality in marine surveys.

Strengths

• Survey plan specifies acquisition of approximately 4000 km of seismic lines.
• Detailed technical parameters are provided, including a 4800 m streamer, 49 litre airgun source, and differential GPS navigation.
• Methodology is described as having consistently obtained high-quality data with interpretable reflectors down to 8-12 seconds in previous surveys.

Limitations

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

Provenance

Source

Australian Ocean Data Network

Collection Method

Proposed marine seismic survey using tuned airgun arrays and a streamer.

Time Range

Late 1994 to early 1995 (December 1994 to January 1995).

Freshness

Last updated 2026-05-05 01:28:41.336953; freshness should be verified.

Geography

Offshore Otway Basin, southeastern Australia.