Manganese Nodules from the Tasman Sea with Chemical Composition

Two manganese nodules recovered from a water depth of 4300 meters in the Tasman Sea, southeast of Sydney. The nodules, about 10 cm in diameter, were associated with calcareous mud and have measured contents of nickel (0.25%), copper (0.17%), and cobalt (0.06%). The data is provided by Geoscience Australia Data and was last updated on 2026-04-30.

Use Cases

• Analyze the geochemical composition of deep-sea manganese nodules based on the provided Ni, Cu, and Co percentages.
• Study the morphology and formation environment of nodules based on described size, shape, and associated sediment type.
• Model the distribution of marine mineral resources based on the specific location and depth data.
• Compare Mn:Fe ratios and clay content with nodules from other ocean basins.

Strengths

• Provides specific chemical composition data for key metals: Ni (0.25%), Cu (0.17%), Co (0.06%).
• Includes precise location (155° 35E, 36° 15S) and depth (4300 m) information for sample provenance.
• Describes physical characteristics like nodule size (~10 cm diameter) and shape (subspherical).

Limitations

• Row count is unknown, which may limit suitability assessment.
• Column-level documentation is absent; field semantics must be inferred after download.
• Data is based on only two physical samples, limiting statistical significance.

Provenance

Source

Geoscience Australia Data

Collection Method

Recovered by HMAS Kimbla from the seafloor.

Freshness

Last updated 2026-04-30 12:52:39.628298; freshness should be verified.

Geography

Tasman Sea, about 250 nautical miles southeast of Sydney (155° 35E, 36° 15S).