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Post-meeting books?
1. Book of review articles– Chemical Geology (Elsevier)
2. AGU monograph– Book of regular papers
Key points 1
1. Alternatives do not amount to a single, generic, one-size fits all replacement model for plume
– generic elements, but each locality individual, e.g., OJP, Hawaii, Azores
Key points 2
• Consistent terminology imperative– Use of properly defined/explained terms. – It isn’t enough to just say “plume”– Problem of falsification
Key points 3
• ~ 1,000-km-wide magmatism - predicted by both?
• Time-progressive track - predicted by both?• Uplift. Domal? - complex pattern predicted by
both? • Temperature - necessary?• CMB origin - detectable?
Key points 5
• Problems with publications:– Standard of interpretations (cart before horse)– Repetition of old, wrong data e.g. ages,
temperatures.
Important problems 1
• Mantle physics
– Self-consistent models that can produce plate tectonics required.
– Better understanding of critical mantle physical parameters, e.g. CMB heat flow, LM viscosity
– How important is small-scale convection?
• Lithosphere physics
– Behaviour of lithosphere when major thermal event occurs - plume, delamination, rifting, meteorite?
– Response of lithosphere to stress - cracking?
– Characterise lithospheric stress
– What causes rifting?
Important problems 2
• Temperature– Petrological
temperatures
– Phase equilibrium of CO2-bearing systems
– Melting at all depths
– other geothermometry methods e.g. seismological
• Geochronology– More high-quality
dates
– Re-date important chains where old dates inadequate.
– LIP ages. Can we be more specific?
Important problems 3
• Seismology– Interpreting mantle seismic
anomalies in the mantle and D” - hot? cool? buoyant? dense?
– Very wide seismic tomography?
– Transfer of material between UM & LM?
– Are innovative high-resolution experiments feasible?
• Planetary– Sort out Venus.
– Look for meteorite evidence in geology.
Important problems 4
• Field evidence– Make diagnostic
observations, e.g., uplift?? temperature, mantle structure.
– Potential plume localities?
– Can we distinguish cause and effect, e.g. rifting & volcanism?
– Address problems of the Emperor-Hawaii system.
• Petrology & Geochemistry– Improved melt generation
models needed
– Melting: high-P trace-element partition coefficients needed
– Where/what is/are the OIB sources?
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