Mentelle Basin Seismic Facies Mapping for Post-rift History

Geoscience Australia's 2008-09 2D seismic data provides a seismic facies study of the post-rift succession in the Mentelle Basin. The analysis identified fourteen distinct seismic facies based on reflection continuity, amplitude, frequency, and geometry. Stratigraphic constraints are provided by DSDP wells 258 and 264.

Use Cases

• Classify seismic facies based on reflection continuity, amplitude, and internal configuration using the fourteen defined categories.
• Model post-rift depositional environments by analyzing the distribution of channel fill, mounded contourite, and progradational wedge facies.
• Correlate stratigraphic sequences using age constraints from DSDP wells 258 and 264 for the upper post-rift succession.
• Reconstruct paleogeography by mapping the spatial distribution of facies like the shelf-slope wedge west of the Margaret Hinge Zone.

Strengths

• Analysis based on new 2D seismic data acquired in 2008-09
• Fourteen distinct seismic facies identified with detailed reflection characteristics
• Stratigraphic age control provided by DSDP wells 258 and 264

Limitations

• Specific row, column, and file size metrics are unknown
• Data format is HTML, which may not be directly machine-readable for analysis
• Geographic coverage is limited to the Mentelle Basin offshore southwestern Australia

Provenance

Source

Geoscience Australia, via the Australian Ocean Data Network.

Collection Method

Seismic facies mapping performed on 2D seismic data.

Time Range

Geological study focused on the post-rift succession from Valanginian to Campanian periods.

Freshness

Data acquired in 2008-09, with metadata last updated in 2026.

Geography

Mentelle Basin, located approximately 200 km southwest of Perth, Australia.