which may suggest that it is partially floored by lithosphere of Precambrian continental origin. The model of Rawlinson et al. (2015) was also used to estimate lithospheric thickness beneath eastern Australia by Davies et al. (2015), who showed that there was a direct correlation between lithospheric thickness and the composition of volcanics at the surface, which enabled identification of the longest continental hot-spot track on Earth, the so-called Cosgrove track.