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Slab pull is a geophysical mechanism whereby the cooling and subsequent densifying of a subducting tectonic plate produces a downward force along the rest of the plate. In 1975 Forsyth and Uyeda used the inverse theory method to show that, of the many forces likely to be driving plate motion, slab pull was the strongest. [1]
In plate tectonics, Slab Pull is the process where a subducting tectonic plate drags the trailing plate along as it sinks into the mantle. This force is primarily driven by the weight of the descending slab and is integral in facilitating plate movements over the asthenosphere.
Slab pull is a tectonic process that occurs at convergent plate boundaries where a dense oceanic plate subducts beneath a less dense continental or oceanic plate. As the subducting slab sinks into the mantle due to its weight, it pulls the rest of the plate along with it, driving the movement of tectonic plates.
The main force on a subducting plate is the slab-pull force. This is the force due to the density contrast between a slab and its surroundings, ie., the mass anomaly of the slab in the mantle.
Slab pull is a geophysical process that occurs when a tectonic plate sinks into the mantle at a subduction zone, pulling the rest of the plate along with it.
29 gru 2014 · Definition. Plate Driving Forces: The forces that drive the motions of tectonic plates at the surface. Slab Pull: The force exerted by the weight of the subducted slab on the plate it is attached to. Ridge Push: The pressure exerted by the excess height of the mid-ocean ridge.
17 sty 2020 · Subduction, in the form of gravitational "slab pull," is thought to be the largest force driving plate tectonics. At a certain depth, the high pressure turns the basalt in the slab to a denser rock, eclogite (that is, a feldspar - pyroxene mixture becomes garnet -pyroxene).
