Ferromanganese Nodule and Crust Samples 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 is provided by the Australian Ocean Data Network and was last updated in June 2026.

Use Cases

• Analyze the relationship between water depth and metal content based on Mn:Fe ratios and Ni, Cu, Co percentages
• Compare hydrogenetic deposit morphology based on descriptions of nodules and crusts up to 20 cm thick
• Identify potential regions for economic nodule exploration based on comparisons with deeper water stations

Strengths

• Includes specific chemical data such as Mn:Fe ratios ranging from 0.48 to 0.91
• Describes sample morphology and substrate types including granite, gabbro, and sandstone
• Provides precise collection depths and locations for all four samples

Limitations

• Row count is unknown, which may limit suitability assessment
• Column-level documentation is absent; field semantics must be inferred 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 2026-06-04 05:25:47.101273; freshness should be verified

Geography

Dampier Ridge and Lord Howe Rise off eastern Australia.