Does the lower mantle correlate with the upper mantle? Do ridges look like superplume boundaries?

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Does the lower mantle correlate with the upper mantle? Do ridges look like superplume boundaries?

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Does the lower mantle correlate with the upper mantle? Do ridges look like superplume boundaries?. STATISTICS ~100% of hotspots fall in LVAs of the upper mantle, mostly those associated with ridges, & in regions of extension. - PowerPoint PPT Presentation

Transcript of Does the lower mantle correlate with the upper mantle? Do ridges look like superplume boundaries?

Page 1: Does the lower mantle correlate with the upper mantle? Do ridges look like superplume boundaries?

Does the lower mantle correlate with the upper mantle?

Do ridges look like superplume boundaries?

Page 2: Does the lower mantle correlate with the upper mantle? Do ridges look like superplume boundaries?
Page 3: Does the lower mantle correlate with the upper mantle? Do ridges look like superplume boundaries?

Only ~3 hotspots are not near yellow/red. All LIPs backtrack to red.

STATISTICS ~100% of hotspots fall in LVAs of the upper mantle, mostly those associated with ridges, & in regions of extension


Distribution of Epicenters and Fociitc.gsw.edu/faculty/bcarter/physgeol/eq/margins.pdf · The ridges stand higher than the surrounding seafloor because the mantle beneath them is

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Dynamics of Mantle Plumes Methods for modeling basic thermal plumes (with and without tracers) Plumes interacting with plates (and ridges) Plumes in thermo-chemical.

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6. LATE-STAGE MELT EVOLUTION AND TRANSPORT IN THE SHALLOW MANTLE … · 2007-01-19 · LATE-STAGE MELT EVOLUTION AND TRANSPORT IN THE SHALLOW MANTLE ... ridges may be as much a function

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Geochemistry, Geophysics, Geosystems · a portion incorporated into arc-generated crust. Mantle N can be outgassed at mid-ocean ridges. Continen-tal crust N can be weathered and added

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