Ferromanganese Nodule and Crust Chemistry from Dampier Ridge and Lord Howe Rise

Chemical and mineralogical data for four ferromanganese samples collected by the West German vessel Sonne. The dataset includes two nodules and two crusts from depths of 1549 to 2700 meters off eastern Australia. It was published by the Australian Ocean Data Network.

Use Cases

• Analyze the relationship between water depth and metal content based on Mn:Fe ratios and Ni+Cu+Co values mentioned in the description
• Classify ferromanganese deposit types based on described morphologies like mononucleate nodules, polynucleate nodules, and laminated crusts
• Assess the economic potential of deep-sea nodules based on reported low Ni, Cu, and Co contents and Mn:Fe ratios
• Compare hydrogenetic deposit compositions across different geological substrates like granite, gabbro, and sandstone

Strengths

• Includes specific chemical measurements for Mn:Fe ratios (0.48-0.91) and Ni+Cu+Co values
• Provides precise sample locations and water depths (1549 m, 2400-2700 m) for four distinct samples
• Compares results with data from three deeper water stations of other research vessels

Limitations

• Row count is unknown, which may limit suitability assessment
• Column-level documentation is absent; field semantics must be inferred after download
• Description metadata is limited; actual data quality requires manual inspection after download

Provenance

Source

Australian Ocean Data Network

Collection Method

Samples collected via dredge and core by the West German vessel Sonne.

Freshness

Last updated 2026-06-23 01:47:43.894632; freshness should be verified

Geography

Dampier Ridge and Lord Howe Rise off eastern Australia.