Four ferromanganese samples, including two nodules and two crusts, were collected from the Dampier Ridge and Lord Howe Rise off eastern Australia. Chemical and mineralogical data for these samples are presented, with thicknesses up to 20 cm and Mn:Fe ratios ranging from 0.48 to 0.91. The data was gathered by the West German vessel Sonne and is hosted by the Australian Ocean Data Network.
Use Cases
- Analyzing the relationship between water depth and metal content based on Mn:Fe ratios and Ni+Cu+Co percentages mentioned in the description
- Classifying ferromanganese deposit morphology based on described types like mononucleate nodules, polynucleate nodules, and laminated crusts
- Comparing hydrogenetic deposit compositions from different substrates like granite, gabbro, and sandstone as described
- Identifying regions for economic exploration based on the described correlation of higher metal values with deeper water (>5000 m)
Strengths
- Includes data from four distinct physical samples (two nodules, two crusts) with detailed collection contexts
- Provides specific chemical metrics including Mn:Fe ratios (0.48-0.91) and comparisons to deeper water stations
- Contains precise location and depth information for samples (e.g., 2400-2700 m on Dampier Ridge, 1549 m on Lord Howe Rise)
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 via data_gov_au
- Collection Method
- Samples collected via dredge and core by the West German vessel Sonne.
- Time Range
- null
- Freshness
- Last updated 2026-06-27 19:33:08.129193; freshness should be verified
- Geography
- Dampier Ridge and Lord Howe Rise off eastern Australia