Triassic Seismic Horizon and Fault Maps for the Central North West Shelf

Geoscience Australia conducted a regional mapping program addressing stratigraphic and structural exploration risk in 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. Seismic horizons were mapped using 2D and 3D surveys, including AGSO s110, AGSO s120, PGS New Dawn, and 3D surveys like Admiral and Beagle.

Use Cases

• Model subsurface structure based on mapped seismic horizons and fault maps.
• Calculate sediment thickness and depositional history based on isochron grids.
• Assess exploration risk based on the regional tectonostratigraphic framework.
• Correlate seismic data with well logs based on synthetic seismogram ties.

Strengths

• Horizons are tied to wells using synthetic seismograms from a cited 2019 study.
• Mapped horizons are placed within a regional tectonostratigraphic framework from a 2019 publication.
• Data integrates multiple seismic surveys, including specific 2D and 3D surveys named in the description.

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

Geoscience Australia Data

Collection Method

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

Freshness

Last updated 2026-04-20 02:56:28.592255; freshness should be verified.

Geography

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