Triassic Seismic Horizon and Fault Grids 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. The data pack comprises seismic horizon grids and isochron grids generated from the TR10.0_SB, TR17.0_SB, and J10.0_SB horizons, alongside fault maps. 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

• Modeling subsurface structure based on mapped seismic horizons TR10.0_SB, TR17.0_SB, and J10.0_SB.
• Analyzing stratigraphic thickness and depositional history using the provided isochron grids.
• Assessing fault geometry and its impact on reservoir compartmentalization based on the included fault maps.
• Integrating regional tectonostratigraphic framework data for basin-scale exploration risk analysis.

Strengths

• Data is derived from multiple 2D and 3D seismic surveys, including regional deep surveys like AGSO s110 and AGSO s120.
• Horizons are tied to wells using synthetic seismograms, suggesting a calibrated interpretation.
• Includes three key seismic horizon grids (TR10.0_SB, TR17.0_SB, J10.0_SB) and corresponding fault maps.

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

Horizons mapped from 2D and 3D seismic surveys, tied to wells with synthetic seismograms, and placed within a published tectonostratigraphic framework.

Freshness

Last updated 2026-04-30 15:19:27.126289; freshness should be verified.

Geography

Roebuck Basin and adjacent sub-basins, central North West Shelf, Australia.