Lithospheric buoyancy and collisional orogenesis: subduction of oceanic plateaus, continental margins, island arcs, spreading ridges, and seamounts.
Tracking changes in sub-continental lithospheric mantle through time.
Consequently, the lithospheric mantle was highly affected by an old continental component.
A 'heat flow province' may be regarded as a region with a certain mantle heat flow and a similar lithospheric thermal structure.
Such melts thus preserve the best evidence for the composition of sub-continental lithospheric mantle, particularly for the origin of mantle enrichment.
A certain degree of coherence should exist within the crust and between the crust and lithospheric mantle.
The difference between this model and active rifting is that the convective upwelling is a consequence, not a cause, of lithospheric thinning and rifting.
Further east, however, two sets of observations support the existence of coeval lithospheric extension.
