|From the desk of Bruce Wilkinson:|
Quéré, S., Lowman, J.P., Arkani-Hamed, J., Roberts, J.H., and Moucha, Robert, 2013, Subcontinental sinking slab remnants in a spherical geometry mantle model: JGR, v. 118, p. 1760-1777.
"Comparisons of the paleogeographic record with seismic tomography sections from the mantle below Asia indicate that detached slab remnants associated with a range of ages since subduction spanning roughly 100 Myr appear to occupy mid-mantle depths at different sites. More than one explanation for the observed spectrum of ages at similar depths may be plausible. (They) model scenarios featuring detached mantle slabs in 3-D calculations and conclude that the initial depth extent of a subducted slab segment is a key parameter determining the rate at which the slab sinks."