Manganese Nodule Composition From Deep Tasman Sea

Two manganese nodules were recovered from a depth of 4300 meters in the Tasman Sea. The data includes detailed physical and chemical measurements, such as a 10 cm diameter, low Mn:Fe ratio, and trace metal contents like 0.25% Ni. This record was published by the Australian Ocean Data Network and last updated in April 2026.

Use Cases

• Analyze trace metal concentrations like 0.25% Ni and 0.06% Co for resource potential assessment.
• Study nodule morphology and size (subspherical, 10 cm diameter) relative to depositional environment.
• Correlate chemical properties (low Mn:Fe ratio, high clay content) with the calcareous mud substrate.
• Model deep-sea mineral deposition processes using data from a specific location (155° 35E, 36° 15S).

Strengths

• Data includes precise geolocation (155° 35E, 36° 15S) and depth (4300 m).
• Provides specific quantitative measurements for key metals (Ni, Cu, Co).

Limitations

• Extremely small sample size of only two nodules.
• No column names or structured data format provided, only descriptive text.
• Temporal coverage and collection date are not specified.

Provenance

Source

Australian Ocean Data Network.

Collection Method

Recovered by HMAS Kimbla from a deep-sea trough.

Freshness

Record was last updated in April 2026.

Geography

Tasman Sea, approximately 250 nautical miles southeast of Sydney.