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

New single-channel seismic profiles and rock samples from 41 stations provide geological information about the margins of the Exmouth and Wallaby Plateaus off northwest Australia. The dataset likely contains details on seismic stratigraphy, rock types, and ages, including Middle and Late Triassic paralic sediments, Early Jurassic shallow-water carbonates, and Jurassic coal measures. It was sourced from the Australian Ocean Data Network.

Use Cases

• Analyze seismic stratigraphy and geological sequences based on seismic profiles mentioned in the description
• Study sediment composition and rock types based on descriptions of lithofacies associations (A, B, C)
• Investigate the tectonic history and breakup events based on unconformities and volcanic sequences described
• Assess petroleum potential based on the described coal-measure sequences and volcaniclastic deposits
• Model paleoenvironments based on the described shallow-water carbonates and marine claystones

Strengths

• Includes rock samples from 41 distinct stations (29 on Exmouth Plateau, 12 on Wallaby Plateau and Cuvier Abyssal Plain)
• Provides detailed lithological descriptions for multiple facies, including coal-measure sequences and ironstones
• Contains age determinations for geological units, including a K/Ar age of 89 m.y. for a basalt

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 offshore region studied

Provenance

Source

Australian Ocean Data Network

Collection Method

Rock samples obtained mainly by dredging, correlated with seismic profiles

Time Range

Geological ages range from Middle Triassic to Tertiary

Freshness

Last updated 2026-06-04 07:13:39.855936; freshness should be verified

Geography

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