A research cruise proposal outlines a 28-day geoscience survey around Christmas Island in the Indian Ocean. The project planned to acquire 2500 km of high-resolution seismic and bathymetric data to assess seabed morphology, sediment thickness, and offshore mineral resources like manganese nodules and crusts. The cruise was scheduled from 7 January to 4 February, 1992.
Use Cases
- Mapping seabed morphology based on high-resolution reflection seismic and bathymetric data mentioned in the description
- Estimating sediment thickness and facies for regional geological mapping based on seismic data
- Investigating manganese nodule abundance and metal grade on the deep-sea floor based on planned sampling
- Analyzing manganese crust thickness and metal grade on volcanic ridges based on the sampling campaign
- Assessing the economic potential of offshore mineral resources based on reported grades and nodule abundance
Strengths
- Project plan includes acquisition of 2500 km of high-resolution reflection seismic and bathymetric data
- Description provides specific geological context, including sediment thickness (100-300m) and crustal depth (5000-6000 m)
- References concrete figures for metal grades (Cu+Ni+Co about 2.55%) and nodule abundance (5-7.5%) from a similar setting
Limitations
- Description metadata is limited; actual data quality requires manual inspection after download
- Column-level documentation is absent; field semantics must be inferred after download
- Row count is unknown, which may limit suitability assessment
Provenance
- Source
- Australian Ocean Data Network
- Collection Method
- Data likely collected via a planned 28-day geoscience cruise of R.V. 'Rig Seismic' using seismic profiling and sampling.
- Time Range
- Cruise scheduled from 7 January to 4 February, 1992.
- Freshness
- Last updated 2026-04-16 14:03:16.901299; freshness should be verified
- Geography
- Christmas Island offshore zone in the Indian Ocean, south of Java.