Definition of craton in English:

craton

Line breaks: craton
Pronunciation: /ˈkratɒn
 
/

noun

Geology
  • A large stable block of the earth’s crust forming the nucleus of a continent.
    More example sentences
    • Mobile belts of various ages seem to have stitched Africa's Archean cratons together by Himalayan-style continental collisions.
    • Much of the craton remained stable up to Triassic time, with sedimentary sequences dominated by shallow-water and subaerial sediments.
    • Many workers have interpreted the Zimbabwe craton as vertically accreted crust.

Derivatives

cratonic

adjective
More example sentences
  • Finally, small, intraplate events not obviously linked to a cratonic boundary are categorized as ‘hotspots’.
  • Many other mobile belts of various ages crisscross the African cratonic nuclei - these are all ripe for study.
  • The complex defines a series of cratonic fragments related to the collision of the Amazonian and Sao Francisco Cratons.

Origin

1930s: alteration of kratogen in the same sense, from Greek kratos 'strength'.

More definitions of craton

Definition of craton in:

Get more from Oxford Dictionaries

Subscribe to remove adverts and access premium resources

Word of the day maelstrom
Pronunciation: ˈmeɪlstrəm
noun
a powerful whirlpool in the sea