East Antarctica is a stable craton of Precambrian age .
East Antarctica , also known as Greater Antarctica , composes two - thirds of the landmass of Antarctica and is considered the coldest and driest landmass on Earth .
Antarctica   is a stable craton of Precambrian age .
East Antarctica , also known as Greater Antarctica , composes two - thirds of the landmass of Antarctica and is considered the coldest and driest landmass on Earth .