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
The Litany of Earth The Litany of Earth The Litany of Earth is a 2014 fantasy/horror fiction novella by Ruthanna Emrys, revisiting H.P. Lovecraft's story "The Shadow Over Innsmouth". It was first published on Tor.com. Decades after the residents of Innsmouth were forced into internment camps by the United States government, Aphra Marsh discovers humans trying to replicate her people's secret mystical rituals. "Litany of Earth" was included on "Locus Magazine"s recommended reading list for 2014. Charlie Jane Anders stated that the story was "something special". An analysis by Io9 indicated that, if not for the involvement of the Sad Puppies, "Litany of Earth"