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 the Dampier Ridge and Lord Howe Rise off eastern Australia, with water depths ranging from 1549 to 2700 meters. It was published via the Australian Ocean Data Network and last updated on 2026-04-10.

Use Cases

• Classifying ferromanganese deposit types based on described morphologies like mononucleate nodules, polynucleate nodules, and laminated crusts.
• Analyzing the relationship between water depth and metal content based on described Mn:Fe ratios and Ni, Cu, Co percentages.
• Identifying potential regions for economic mineral exploration based on the comparison with deeper water stations mentioned in the description.

Strengths

• Provides specific chemical data points, including Mn:Fe ratios ranging from 0.48 to 0.91 and Ni+Cu+Co values.
• Includes detailed sample collection context with precise water depths (1549 m, 2400-2700 m) and substrate types (granite, gabbro, sandstone).
• Compares results with data from other research vessels (Galathea, Tangaroa), offering a broader context.

Limitations

• Row count is unknown, which may limit suitability assessment.
• Column-level documentation is absent; field semantics must be inferred after download.
• Data may reflect geographic bias inherent to the specific sampling locations off eastern Australia.

Provenance

Source

Australian Ocean Data Network

Collection Method

Samples collected via dredge and core from research vessel Sonne.

Time Range

null

Freshness

Last updated 2026-04-10 18:21:39.649857; freshness should be verified.

Geography

Dampier Ridge and Lord Howe Rise off eastern Australia.