Wiktionary
cratons
n. (plural of craton English)
Usage examples of "cratons".
The twelve populated ones were supposed to have cratons that stabilized aeons ago, but as you may know, doubts have been cast on the validity of the original Krondak survey.
The continents showed up in his images as black and dark islands in glowing oceans, the ancient granite cratons surrounded by crumpled greenstone.
The cratons were the cores around which the continents had accreted in the first place, crust slabs which had formed in the centre of ancient mantle convection cells.