What is another word for craton?
Pronunciation: [kɹˈatən] (IPA) 
A craton is a stable geological block of continental crust that has remained relatively unchanged for billions of years. It is a term used in geology to describe an area of stable, ancient crust that forms the stable core of a continent. Some synonyms for craton include shield, platform, and continental nucleus. Other terms used to describe craton-like structures include basement, cratonic shell, and Precambrian shield. The geological features on these cratons are generally flat or gently undulating, which reflects the stable geological conditions of these ancient regions. Cratons serve as important sources of information for understanding the evolution of the Earth's crust and the processes that shaped our planet.
