mantle plume

noun

, Geology.

1. plume ( def 10 ).

mantle plume

noun

1. another name for plume

Word History and Origins

Origin of mantle plume¹

First recorded in 1970–75

Example Sentences

Seismic vibrations tend to move more slowly through hotter areas than cooler areas, for example, so a mantle plume would slow their progress.

From Singularity Hub 

Because the team drew data from land- and ocean-based sensors—the latter being a traditional hole in seismic imaging—over such a wide area, they form one of the most complete snapshots of a mantle plume to date.

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Scientist agree the mantle plumes underlying hotspots are so buoyant and quick-moving they should rise straight up.

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