What are the typical stages of Hawaiian volcanism? 5. What will be, in term of final magma compositions, the effect of mixing of different sources as shown in the two diagrams below? 1 b How the high do in mantle systems is explained? 7. Compare (strict) two-layer and whole-mantle convection models. What are the strengths and weaknesses of each? 8. Describe the process of partial melting of rising material in a plume tail. At what depth is it most likely to be abundant?What problem is associated with the intense irrigation of the High Plains?

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