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

Chemical and mineralogical data for four ferromanganese samples from the Dampier Ridge and Lord Howe Rise off eastern Australia. The dataset includes two nodules and two crusts collected by the West German vessel Sonne from water depths between 1549 and 2700 meters. It was published by Geoscience Australia Data and last updated on 2026-04-30.

Use Cases

• Classifying hydrogenetic marine deposits based on described chemical composition and morphology.
• Modeling the relationship between water depth and metal content (Ni, Cu, Co, Mn:Fe ratios) as suggested by the description.
• Identifying potential areas for economic mineral exploration based on the described criteria for nodules of economic significance.

Strengths

• Includes specific chemical measurements such as Mn:Fe ratios (0.48-0.91) and low Ni, Cu, Co content.
• Provides detailed sample context, including precise water depths (1549m, 2400-2700m) and substrate types (granite, gabbro, sandstone).
• Compares results with data from other research vessels (Galathea, Tangaroa), adding analytical 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 stations described.

Provenance

Source

Geoscience Australia Data

Collection Method

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

Freshness

Last updated 2026-04-30 13:17:34.879331; freshness should be verified.

Geography

Dampier Ridge and Lord Howe Rise off eastern Australia.