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

Northwest Australia's Exmouth and Wallaby Plateaus are described through geological data from 41 sampling stations. The dataset likely contains information on rock types, seismic stratigraphy, and age determinations from dredging and seismic profiling. It was published by the Australian Ocean Data Network and last updated in April 2026.

Use Cases

• Modeling basin evolution based on described seismic sequences and stratigraphy.
• Assessing petroleum potential based on described lithofacies associations including coal measures and carbonates.
• Analyzing volcanic plateau formation based on described basalt, tuff, and volcaniclastic sequences.
• Correlating regional geology based on age determinations (e.g., Triassic, Jurassic, Cretaceous) and unconformities mentioned.

Strengths

• Covers 41 distinct sampling stations (29 on Exmouth, 12 on Wallaby/Cuvier).
• Provides detailed lithological descriptions for multiple facies associations (A-E).
• Includes specific geological time ranges (e.g., Middle/Late Triassic, Early Jurassic, Aptian).
• Integrates seismic profile data with physical rock samples.

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 plateaus studied.

Provenance

Source

Australian Ocean Data Network

Collection Method

Data gathered via dredging and single-channel seismic profiling.

Time Range

Covers rock samples from pre-Quaternary to Tertiary age, with specific mentions of Triassic, Jurassic, Cretaceous, and Miocene periods.

Freshness

Last updated 2026-04-10 20:14:16.072099; freshness should be verified.

Geography

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