Workshop on the Establishment of a Geological Model of ...

should be invited to bring data and to allow the data to be merged. I would propose that a notice to that
effect be sent out to potential attendees, encouraging this and to strive to build up the compilation during
the workshop. The meeting should have some form of a base understanding set up and ready to accept data.
It would be a natural opening to the proceedings
This will itself highlight data gaps and requirements and allow development of a plan for addressing
shortfalls.
Definition of the area
It is statistically important to constrain the lateral limits of the CCZ, since the two fracture zones deal
with North and South. We need to normalize observations to a set area. I suggest 115 and 160 degrees West
as longitudinal limits.
Data types for the geological context
• Bathymetry (E/S, M/B, analogue and digital compilation, satellite predicted);
• Gravity (marine compilation and satellite altimeter);
• Magnetics;
• Other geophysical ‐ heat flow;
• Seismic (high resolution 3.5, SCS and MCS, reflection and refraction);
• Sample locations, including deep drill data;
• Backscatter and side scan (reflectivity and seafloor response/SRP);
• Bottom photography, including submersible and ROV results;
• Sediment type, reworking pathways and distribution, 2‐ and 3‐D;
• Nodule analyses, variability and genesis;
• Miscellaneous oceanographic and biological;
• No data is too humble;
• No data should be assumed useless, (no navigation might be an exception) in an area where there is
nothing else, one has to consider the analysis of the most unlikely of source;
• We have to recognize that we may not secure the ship time to address gaps in our knowledge base.
Extant databases – bathymetry
Digital bathymetric compilation, the GEBCO one‐minute grid.
Use of control tracks;
Predicted bathymetry;
Comparison and cross‐correlation of these and other sources;
Control and reliability ‐ geostatistical análisis;
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