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, along with fault maps. The grids were created using 2D and 3D seismic surveys, including AGSO s110, AGSO s120, PGS New Dawn, and several 3D surveys, tied to wells via synthetic seismograms.

Use Cases

• Modeling subsurface structure based on mapped seismic horizons.
• Calculating sediment thickness and depositional history based on isochron grids.
• Assessing exploration risk and fault seal integrity based on compiled fault maps.
• Integrating regional tectonostratigraphic frameworks for basin analysis.

Strengths

• Data is derived from multiple regional deep 2D seismic surveys and several named 3D surveys, suggesting broad coverage.
• Horizons are placed within a published regional tectonostratigraphic framework (Abbott et al., 2019).
• Synthetic seismograms were used to tie seismic interpretations to well data, which may improve accuracy.

Limitations

• Column-level documentation is absent; field semantics must be inferred after download.
• Row count and dataset scale are unknown, which may limit suitability assessment.
• Freshness should be verified; last metadata update was 2026-05-04 23:45:20.174410.

Provenance

Source

Geoscience Australia, via the Australian Ocean Data Network.

Collection Method

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

Time Range

Covers the Triassic succession.

Freshness

Last updated 2026-05-04 23:45:20.174410; freshness should be verified.

Geography

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