does the lower mantle correlate with the upper mantle? do ridges look like superplume boundaries?
DESCRIPTION
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 PresentationTRANSCRIPT
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