Cenozoic Volcanism of the Capel-Faust Basins: Seafloor Features and Ages

Geoscience Australia survey data identifies volcanic features like cones, flows, and sills on the seafloor of the Lord Howe Rise's Capel-Faust region. Analysis of seismic and bathymetry data reveals at least two distinct volcanic ages: Miocene-Pliocene (approx. 4-7 Ma) and Eocene-Oligocene. The data was presented at the Australian Earth Sciences Convention in July 2010.

Use Cases

• Map the distribution of volcanic cones and flows based on swath bathymetry and seismic data.
• Analyze the alignment and age relationships of seamount chains to infer hotspot activity.
• Study sediment erosion patterns around volcanic edifices based on described moat features.

Strengths

• Identifies at least two distinct volcanic ages (Miocene-Pliocene and Eocene-Oligocene) with specific date ranges.
• Includes data on the Gifford Guyot (approx. 18 Ma) and references multiple survey sources (s302, ZoNÉCo 5).
• Describes specific volcanic feature types: cones, flows, sill-related features, and seamounts.

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 survey region.

Provenance

Source

Geoscience Australia Data

Collection Method

Survey acquiring exploration data and samples, analysis of seismic data (s302) and swath bathymetry.

Time Range

Cenozoic era, with specific features dated to Eocene-Oligocene and Miocene-Pliocene (approx. 4-7 Ma).

Freshness

Last updated 2026-03-25 17:36:39.323014; freshness should be verified.

Geography

Capel-Faust Basins, Northern Lord Howe Rise, offshore region including the Tasman Basin.