Triassic Horizon and Fault Maps for the Central North West Shelf

Geoscience Australia conducted a regional mapping program addressing stratigraphic and structural exploration risk. The data pack comprises seismic horizon grids, isochron grids, and fault maps for the Triassic succession of the Roebuck Basin. Mapped horizons were tied to wells using synthetic seismograms and placed within a regional tectonostratigraphic framework.

Use Cases

• Model subsurface stratigraphy based on seismic horizon grids.
• Analyze structural risk based on compiled fault maps.
• Calculate sediment thickness intervals based on isochron grids.
• Correlate seismic interpretations with well data based on synthetic seismogram ties.

Strengths

• Horizon grids are derived from both 2D and 3D seismic surveys, including named surveys like AGSO s110 and TGS Capreolus MC3D.
• Horizons are tied to wells using synthetic seismograms and placed within a published regional tectonostratigraphic framework.
• Data includes grids for three specific horizons: TR10.0_SB (base Triassic), TR17.0_SB (Mid–Triassic), and J10.0_SB (top Triassic).

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 basin and survey coverage.

Provenance

Source

Australian Ocean Data Network

Collection Method

Regional mapping program conducted by Geoscience Australia using 2D and 3D seismic surveys.

Freshness

Last updated 2026-04-16 16:16:24.175506; freshness should be verified.

Geography

Central North West Shelf, specifically the Roebuck Basin and parts of adjacent sub-basins.