Manganese Nodule Composition from the Tasman Sea

Two manganese nodules recovered from a 4300-meter depth in the Tasman Sea southeast of Sydney. The data includes physical dimensions, location coordinates, and chemical composition percentages for nickel, copper, and cobalt. The nodules are described as subspherical with a diameter of about 10 cm.

Use Cases

• Analyze the low Mn:Fe ratio and high clay content to study nodule formation processes in deep-sea troughs.
• Compare the Ni (0.25%), Cu (0.17%), and Co (0.06%) content values with nodules from other oceanic regions for resource assessment.
• Use the precise location coordinates (155° 35E, 36° 15S) and water depth (4300 m) for geological mapping of the seafloor southeast of Sydney.

Strengths

• Provides precise geolocation coordinates (155° 35E, 36° 15S) and water depth (4300 m) for the sample site.
• Includes specific quantitative measurements for key metals: Ni (0.25%), Cu (0.17%), and Co (0.06%).
• Describes the physical characteristics of the nodules, including a diameter of about 10 cm and a subspherical shape.

Limitations

• Extremely small sample size of only two physical nodules, limiting statistical analysis.
• Data is presented in descriptive text within HTML/PDF files, not in a structured, machine-readable tabular format.
• No columnar data or sample rows are provided, requiring manual extraction for computational use.

Provenance

Source

Geoscience Australia Data

Collection Method

Recovered by HMAS Kimbla from a seafloor trough.

Time Range

null

Freshness

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Geography

Tasman Sea, approximately 250 nautical miles southeast of Sydney, Australia.