Mesozoic Sedimentary and Volcanic Rocks from the Northern Exmouth Plateau

Petrography and microfacies data from dredged geological samples collected from the northern Exmouth Plateau margin. The dataset likely contains analyses that define seven major lithofacies associations and 14 microfacies types from the Late Triassic to Middle Jurassic. Samples were obtained by research vessels R.V. Sonne and R.V. Rig Seismic in water depths between 2000 and 5600 meters.

Use Cases

• Classifying Late Triassic to Middle Jurassic lithofacies based on described volcanic, carbonate, and coal measure associations.
• Correlating shallow water carbonate microfacies with coeval platform deposits in the Alps and Mediterranean region.
• Modeling the subsidence history and depositional environments from the Late Triassic to the Cainozoic based on the described facies sequence.
• Analyzing diagenetic transformations involving silica, silicates, carbonates, and phosphates mentioned in the description.

Strengths

• Analysis is based on samples from a significant depth range (2000-5600 m) and a defined geographic area.
• Description details seven major lithofacies associations and 14 microfacies types, suggesting structured classification.
• Temporal coverage is explicitly defined as spanning from the Late Triassic to the Cainozoic.

Limitations

• Column-level documentation is absent; field semantics must be inferred after download.
• Row count is unknown, which may limit suitability assessment.
• Data files are in PDF and HTML formats, which may require extraction for computational analysis.

Provenance

Source

Geoscience Australia Data

Collection Method

Dredging along seismic reflection profiles by research vessels R.V. Sonne (Cruise SO-8) and R.V. Rig Seismic (BMR Cruise 56).

Time Range

Late Triassic to Cainozoic (with focus on Late Triassic to Middle Jurassic associations)

Freshness

Last updated 2026-04-20 02:20:15.147506; freshness should be verified.

Geography

Northern margin of the Exmouth Plateau, southeastern margin of the Tethys Ocean