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

A deep crustal seismic data acquisition project proposed for the offshore Otway Basin in southeastern Australia. The survey, designated AGSO Survey 137, aimed to collect up to approximately 4000 km of data between early December 1994 and late January 1995. The project was conducted by the Australian Ocean Data Network to study the basin's architecture and extensional processes.

Use Cases

• Modeling deep crustal architecture based on the described 48-fold CDP coverage and 16-second record length.
• Analyzing extensional tectonic processes based on the survey's goal to characterize linkages between the Otway Basin and surrounding geological features.
• Integrating seismic and aeromagnetic datasets to test concepts for basin interpretation, as mentioned in the description.
• Constraining crustal velocity models using the seismic refraction data recorded on key lines.

Strengths

• Survey parameters are explicitly detailed, including a 4800 m streamer, 49 litre airgun source, and differential GPS navigation.
• The methodology is described as having previously produced high-quality data with interpretable reflectors down to 8-12 seconds on other surveys.
• Clear scientific objectives are stated for determining crustal architecture and testing concepts from aeromagnetic data.

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 data acquisition using tuned airgun arrays and a streamer.

Time Range

Late 1994 to early 1995 (proposed acquisition period).

Freshness

Last updated 2026-06-05 07:51:09.788360; freshness should be verified.

Geography

Offshore Otway Basin, south-eastern Australia.