Lithosphere-Asthenosphere boundary a thermal control of oceanic-lithosphere thickness. The continental lithosphere contains an ancient, stable part known as the craton. The LAB is particularly difficult to study in these regions and evidence suggests that the lithosphere within this old part of the continent is at it thickest and even appears to exhibit large variations in thickness beneath the cratons, thus supporting the theory that lithosphere thickness and LAB depth are age-dependent. Depths of the LAB beneath these regions (also known as shields and platforms) are estimated to be between 200 and 250 km deep. Beneath Phanerozoic continental crust, the LAB is roughly
Fools Gold/What the World Is Waiting For and "What the World Is Waiting For" were recorded at Sawmills Studios in Cornwall during the late summer of 1989, with additional vocal and guitar parts recorded later at London's Battery Studios, during the autumn of 1989. The tracks had been worked on for four months, and the intention was to put "What the World Is Waiting For" as the A side; however, when Roddy Mckenna, Silvertone's A&R man, heard "Fools Gold" he urged the band to use that as the A-side. The band were not completely convinced, and it was agreed, instead, to release the two tracks as a