mantle plume
Americannoun
noun
Etymology
Origin of mantle plume
First recorded in 1970–75
Example Sentences
Examples are provided to illustrate real-world usage of words in context. Any opinions expressed do not reflect the views of Dictionary.com.
Notably, this happened without the presence of a deep mantle plume, challenging long-held assumptions about the source of such volcanism.
From Science Daily • Nov. 12, 2025
It has already identified new seamounts in the northeast Atlantic Ocean that could help track the evolution of the mantle plume that feeds Iceland’s volcanoes.
From Science Magazine • Apr. 18, 2023
All of this evidence is consistent with a mantle plume.
From Scientific American • Jan. 5, 2023
Since time immemorial, a deeply rooted fountain of superheated rock known as a mantle plume has been torching the underside of the Pacific tectonic plate.
From Washington Post • Dec. 22, 2022
Decompression melting also takes place within a mantle plume.
From Textbooks • Jan. 1, 2015
Definitions and idiom definitions from Dictionary.com Unabridged, based on the Random House Unabridged Dictionary, © Random House, Inc. 2023
Idioms from The American Heritage® Idioms Dictionary copyright © 2002, 2001, 1995 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company.
