Two manganese nodules with low metal content were recovered from a depth of 4300 m near Gascoyne Seamount during a 1979 cruise. The Australian Ocean Data Network provides this geological data from five stations in the southern Tasman Sea, where the carbonate compensation depth is about 4500 m. Results suggest high-value nodules may only exist in a deep depression southeast of the seamount.
Use Cases
- Analyze manganese nodule composition based on reported Ni, Cu, and Co percentages
- Study sediment distribution patterns based on grab samples from five stations
- Model carbonate compensation depth effects based on the reported 4500 m boundary
- Investigate nodule formation conditions based on described low sedimentation rates and oxidizing environments
Strengths
- Specific metal composition percentages are provided (Ni 0.25%, Cu 0.17%, Co 0.06%)
- Geographic and depth details are precise (4300 m near Gascoyne Seamount, 4900-5100 m central Tasman Sea)
- Sampling context is documented (HMAS Kimble cruise, May 1979, five stations)
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/temporal bias inherent to a single 1979 cruise
Provenance
- Source
- Australian Ocean Data Network
- Collection Method
- Recovered via free-fall grab samples during a geological cruise.
- Time Range
- May 1979
- Freshness
- Last updated 2026-05-05 00:16:44.346545; freshness should be verified
- Geography
- Southern Tasman Sea, near Gascoyne Seamount (250 nautical miles SE of Sydney)