peridotite
Americannoun
noun
Other Word Forms
Derived Forms
Etymology
Origin of peridotite
From French, dating back to 1895–1900; see origin at peridot, -ite 1
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.
Drilling below the seabed in the mid–Atlantic Ocean, they have collected a core of rock more than 1 kilometer long, consisting largely of peridotite, a kind of upper mantle rock.
From Science Magazine • May 25, 2023
The Lost City vents were found to arise by a process termed serpentinization — a chemical interaction between water and a type of rock called peridotite that contains minerals enriched in magnesium, iron and silica.
From Nature • Nov. 6, 2018
The mantle contains peridotite, a rock that reacts with the carbon in air and water to form marble and limestone.
From Seattle Times • Apr. 12, 2017
These rocks are rare on the surface, but make up peridotite, the rock of the upper mantle.
From Textbooks • Jan. 1, 2017
We know that to a depth of about a hundred miles the mantle consists predominantly of a type of rock known as peridotite, but what fills the space beyond is uncertain.
From "A Short History of Nearly Everything" by Bill Bryson
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.
