It included the Gawler Craton of southern Australia and correlated terrains in Antarctica.
The Gawler craton and Terre Adélie craton share late Archean and early Proterozoic tectono-thermal events, and may be considered to be a single terrain from the Archean until rifting in the Cretaceous.
[3] The Mawson Continent seems to have formed during the Kimban orogeny of around 1730–1690 Ma when the Gawler–Adélie Craton combined with the crust of the Miller Range of the Transantarctic Mountains.
[2] Airborne and satellite magnetic geophysical data suggest that the Gawler-Adélie cratons differ in fundamental ways from the Miller Range and other parts of the East Antarctic Shield.
[1] There is evidence that suggests that the Miller Range terrain was accreted to the Gawler–Adélie Craton during the 1730–1690 Ma Kimban–Nimrod Orogeny, with a suture zone that may be at or near the location of the Nimrod Group.