The seemingly stable regions of the Earth’s continental plates — the so-called stable cratons — have suffered repetitive deformation below their crust since their formation in the remote past, according to new research from the University of Illinois Urbana-Champaign. This hypothesis defies decades of conventional plate tectonics theory and begs to answer why most cratons have remained structurally stable while their underbellies have experienced significant change.
Click here for original story, Geologists challenge conventional view of Earth’s continental history, stability with new study
Source: ScienceDaily