Geology of the Exmouth and Wallaby Plateaus: Seismic Sequences and Rock Samples

A geological study presenting the first detailed information about the margins of the Exmouth and Wallaby Plateaus off northwest Australia. The dataset is based on rock samples from 41 stations, obtained mainly by dredging, and related to seismic stratigraphy. It was published by Geoscience Australia Data and last updated in March 2026.

Use Cases

• Modeling basin evolution based on described Triassic to Tertiary sedimentary sequences.
• Assessing petroleum potential based on described lithofacies like coal measures and carbonates.
• Studying volcanic plateau formation based on described basalts, tuffs, and volcaniclastic deposits.
• Correlating seismic sequences with physical rock samples from specific stations.

Strengths

• Provides first detailed geological information for the Exmouth and Wallaby Plateau margins.
• Includes rock samples from 41 specific stations (29 on Exmouth, 12 on Wallaby/Cuvier Plain).
• Describes specific lithofacies associations (A-E) with detailed rock type compositions.

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 study area.

Provenance

Source

Geoscience Australia Data

Collection Method

Rock sampling via dredging correlated with single-channel seismic profiles.

Time Range

Covers rock ages from Middle Triassic to Tertiary.

Freshness

Last updated 2026-03 25 16:52:38.250456; freshness should be verified.

Geography

Exmouth Plateau, Wallaby Plateau, and Cuvier Abyssal Plain off northwest Australia.