Search results
28 sie 2017 · The main purpose of this study is twofold: (1) to develop detailed models of lithospheric strength of oceanic plates and ridge-push force, and (2) to determine the rheological and tectonic conditions for ridge-push force transmission in the interior of oceanic plates.
Ridge push (also known as gravitational slides or sliding plate force) is a proposed driving force for plate motion in plate tectonics that occurs at mid-ocean ridges as the result of the rigid lithosphere sliding down the hot, raised asthenosphere below mid-ocean ridges.
20 gru 1991 · Abstract. The stress distribution and plate boundary force produced by ridge push are modelled by elastic/viscoelastic finite element analysis in oceanic lithosphere and in an adjacent continent separated by a passive margin.
One side in the argument holds that the plates are only moved by the traction caused by mantle convection. The other side holds that traction plays only a minor role and that two other forces, ridge push and slab pull, are more important. Some argue that the real answer lies somewhere in between.
24 kwi 2024 · Ridge-push forces cause two plates to pull apart on the surface. Slab-pull forces pull the plates down. This movement of out and down is also encouraged by convection traction, or clockwise and counterclockwise currents that are present beneath the plates.
ridge push: the force due to the buoyancy of the hot mantle rising to the surface beneath the ridge. viscous drag: the force opposing motion of the plate and slab past the viscous mantle underneath or on the side.
1 sty 2021 · These sublithospheric buoyancy forces generate the plate-driving forces F sp (slab pull) and F rp (ridge push). Whether the force F bs (basal shear) is a plate-driving or plate-resisting force depends on the relationship of the surface plate velocity v p to the underlying mantle flow velocity v m (see main text for discussion).
