Sediments and Geophysical Data from the Argo Abyssal Plain, Northeast Indian Ocean

The Argo Abyssal Plain in the northeast Indian Ocean is the focus of this dataset. It contains information from a series of geophysical traverses and sediment cores collected by the research vessel Atlantis II. The data includes isopach maps of sediment thickness, indications of diapirs, and a diverse collection of core samples such as siliceous clays, calcareous oozes, and manganese nodules.

Use Cases

• Modeling sediment thickness distribution based on isopach maps derived from seismic profiles.
• Analyzing the composition and origin of seafloor diapirs indicated in the Argo Abyssal Plain.
• Studying carbonate compensation depth (CCD) effects using calcareous and siliceous sediment core samples.
• Investigating volcanic basement material underlying rises like the Joey Rise based on recovered hyaloclastites and basalt.

Strengths

• Includes a diverse set of physical samples, including sediment cores and a basalt sample, from multiple seafloor environments.
• Covers a specific, defined geographic region: the Argo Abyssal Plain and adjacent areas in the northeast Indian Ocean.
• Integrates different data types: geophysical traverse data, isopach maps, and core sample descriptions.

Limitations

• Column-level documentation is absent; field semantics must be inferred after download.
• Row count is unknown, which may limit suitability assessment.
• The description metadata is limited; actual data quality and file structure require manual inspection.

Provenance

Source

Australian Ocean Data Network

Collection Method

Data gathered via geophysical traverses and sediment coring during a research cruise by the vessel Atlantis II.

Time Range

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Freshness

Last updated 2026-04-28 15:39:21.957357; freshness should be verified.

Geography

Argo Abyssal Plain and adjacent areas (Joey Rise, Roo Rise, Exmouth Plateau) in the northeast Indian Ocean.