Cenozoic Volcanic Features in the Capel-Faust Basins

A Geoscience Australia survey identified volcanic cones, flows, and sills on the Lord Howe Rise seafloor. The data includes at least two distinct volcanic ages: Miocene-Pliocene (approximately 4-7 Ma) cones and Eocene-Oligocene features. Findings were presented at the Australian Earth Sciences Convention in July 2010.

Use Cases

• Classify volcanic feature types (e.g., cones, flows, sills) using swath bathymetry and seismic profile data.
• Analyze the alignment and age relationships of seamount chains, such as the north-northwest trend of Early Miocene cones.
• Map the distribution of Eocene-Oligocene volcanic edifices relative to Palaeocene-Eocene unconformities and basement highs.
• Study sediment erosion patterns by examining moat features surrounding identified volcanic cones.

Strengths

• Identifies at least two distinct volcanic ages (Miocene-Pliocene and Eocene-Oligocene) with specific date ranges.
• Includes analysis from multiple data sources: seismic profiles (survey s302) and swath bathymetry.
• Covers a specific frontier region, the offshore Lord Howe Rise Capel-Faust area.

Limitations

• Specific row counts, column names, and dataset size are unknown.
• Primary data formats are PDF and HTML, which are not directly machine-readable for analysis.
• The survey's temporal coverage and exact geographic bounds are not precisely quantified.

Provenance

Source

Australian Ocean Data Network, based on a Geoscience Australia survey.

Collection Method

Marine survey acquiring exploration data and samples, analyzed with seismic data and swath bathymetry.

Time Range

Volcanic features range from Eocene-Oligocene to Miocene-Pliocene (approximately 4-7 Ma).

Freshness

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Geography

Capel-Faust basins, northern Lord Howe Rise, including the Gifford Guyot.