Regions of continents that have NOT been subjected to orogeny during the past one billion years are termed ________.
A)exotic terranes
B)accreted terranes
C)cratons
D)cratonic platforms

Question

Quizplus · Accepted Answer

Cratons are regions of continents that have not undergone orogeny for at least the last billion years. They are typically stable and relatively flat areas with thick, ancient rock formations. Accreted terranes refer to regions where two tectonic plates have collided and added material to a continent, while exotic terranes are fragments of crust that were once part of a different tectonic plate and have been added to a continent. Cratonic platforms refer to the flat, stable portions of the craton that are covered by sedimentary rocks.

Regions of Continents That Have NOT Been Subjected to Orogeny