Triassic Horizon and Fault Maps for the Central North West Shelf

Geoscience Australia conducted a regional mapping program addressing stratigraphic and structural aspects of exploration risk within the Triassic succession of the Roebuck Basin and adjacent sub-basins. The data pack comprises seismic horizon grids, isochron grids, and fault maps generated from key Triassic seismic horizons. Horizons were mapped using multiple 2D and 3D seismic surveys and tied to wells using synthetic seismograms.

Use Cases

• Analyze basin structure based on mapped seismic horizons and fault maps
• Calculate sediment thickness and depositional history based on isochron grids
• Assess exploration risk within the Triassic succession based on the regional tectonostratigraphic framework
• Correlate seismic data with well logs based on the use of synthetic seismograms

Strengths

• Data is derived from multiple seismic surveys, including named 2D surveys (AGSO s110, AGSO s120, PGS New Dawn) and 3D surveys (Admiral, Beagle, CNOOC, Curt, Lord, Naranco, Polly, Whitetail, TGS Capreolus MC3D)
• Horizons are placed within a published regional tectonostratigraphic framework by Abbott et al. (2019)
• Synthetic seismograms from Nguyen et al. (2019) were used to tie seismic data to wells, suggesting a calibrated interpretation

Limitations

• Column-level documentation is absent; field semantics must be inferred after download
• Row count is unknown, which may limit suitability assessment
• Data may reflect geographic bias inherent to the specific seismic survey coverage of the central North West Shelf

Provenance

Source

Australian Ocean Data Network

Collection Method

Regional mapping program using 2D and 3D seismic surveys, with horizons tied to wells via synthetic seismograms.

Freshness

Last updated 2026-06-04 10:14:24.846304; freshness should be verified

Geography

Roebuck Basin and adjacent sub-basins on the central North West Shelf of Australia.