AGSO Survey 91: Marine Seismic Data from Offshore Southeast Queensland Basins

AGSO Survey 91 collected approximately 2900 km of marine multichannel seismic reflection data off southeast Queensland in December 1989. The survey investigated the structure and stratigraphy of the offshore Maryborough, Capricorn, and northern Tasman Basins. Sonobuoy refraction, gravity, magnetic, and bathymetric data were also gathered.

Use Cases

• Modeling basin evolution based on described structural phases like Triassic-Jurassic downwarping and Cretaceous inversion.
• Mapping subsurface structures like synclines and anticlines based on seismic interpretations of the Maryborough Basin.
• Correlating seismic stratigraphy with well data using ties to the Aquarius 1 and Capricorn 1A wells.
• Analyzing crustal properties based on collected gravity, magnetic, and refraction data.

Strengths

• Approximately 2900 km of seismic reflection data provides substantial spatial coverage.
• Multimodal data collection includes seismic, sonobuoy refraction, gravity, magnetic, and bathymetric measurements.
• Survey includes ties to two deep offshore wells (Aquarius 1 and Capricorn 1A) for calibration.

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.
• Seismic data quality in the Cretaceous and older section is described as poor in some areas.

Provenance

Source

Australian Geological Survey Organisation (AGSO), via Australian Ocean Data Network.

Collection Method

Marine multichannel seismic reflection survey conducted using RV Rig Seismic.

Time Range

Survey conducted in December 1989.

Freshness

Last updated 2026-06-04 05:57:53.648260; freshness should be verified.

Geography

Offshore southeast Queensland, covering the Maryborough, Capricorn, and northern Tasman Basins.