mantle plume

noun Geology.
plume ( def 10 ).

Origin:
1970–75

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World English Dictionary
mantle plume
 
n
another name for plume

Collins English Dictionary - Complete & Unabridged 10th Edition
2009 © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins
Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009
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Example sentences
The mantle plume will stay where it is and eventually create a new island over itself.
Despite the apparent unifying appeal, many dispute the mantle plume idea.
Despite their apparent unifying appeal, many dispute the mantle plume idea.
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