Mantle Convection with Plates and Mobile, Faulted Plate Margins

• DOI: 10.1126/science.267.5199.838
• Publication Date: 2006-10-27T18:19:42Z
• Authors: Shijie Zhong; Michael Gurnis
• Keywords: Slab; Slab window

A finite-element formulation of faults has been incorporated into time-dependent models mantle convection with realistic rheology, continents, and phase changes. Realistic tectonic plates naturally form self-consistent coupling between plate dynamics. After the initiation subduction, trenches rapidly roll back subducted slabs temporarily laid out along base transition zone. have penetrated lower mantle, velocity trench migration decreases markedly. The inhibition slab penetration by 670-kilometer change is greatly reduced in these as compared to without plates.