- a relatively rigid and immobile region of continental portions of the earth's crust.
Origin of craton
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2018
- geology a stable part of the earth's continental crust or lithosphere that has not been deformed significantly for many millions, even hundreds of millions, of yearsSee shield (def. 7)
Word Origin for craton
C20: from Greek kratos strength
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012
- A large portion of a continental plate that has been relatively undisturbed since the Precambrian era and includes both shield and platform layers.
The American Heritage® Science Dictionary Copyright © 2011. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.