Sediment and Geophysical Data from Argo Abyssal Plain

A 2026 Geoscience Australia publication details sediment and tectonic processes in the northeast Indian Ocean. The data includes seismic profiles for isopach maps, core samples of siliceous clays, calcareous oozes, and manganese nodules, and evidence of probable diapirs and basaltic material.

Use Cases

• Analyze sediment thickness patterns from seismic profiles and isopach maps relative to bathymetry.
• Classify core sample types, such as siliceous clays from below the CCD or calcareous oozes from above it.
• Investigate the composition and origin of probable diapirs and recovered basalt samples in the Argo Abyssal Plain.
• Map the distribution of hyaloclastites to infer basaltic material underlying features like the Joey Rise.

Strengths

• Includes diverse geological samples: siliceous clays, calcareous oozes, manganese nodules, and basalt.
• Covers multiple distinct sites: the Argo Abyssal Plain, a fore-arc basin, the Joey Rise, and the Exmouth Plateau.
• Published in 2026, indicating recent compilation and availability.

Limitations

• Core sample count and specific geophysical measurement counts are unknown.
• Data is presented in document formats (HTML, PDF), not as structured, queryable tables.
• The nature of probable diapirs (salt or mud-cored) could not be conclusively determined from the program.

Provenance

Source

Geoscience Australia Data

Collection Method

Geophysical traverses and coring from the research vessel Atlantis II.

Time Range

null

Freshness

Last updated March 2026.

Geography

Argo Abyssal Plain and adjacent areas, northeast Indian Ocean, including Joey Rise and Exmouth Plateau.