lithosphere, leading to convergence of two continental plates. Neither continental plate will subduct. It is likely that the plate may break along the boundary of continental and oceanic crust. Seismic tomography reveals pieces of lithosphere that have broken off during convergence.

Subduction zones

Subduction zones are areas where one lithospheric plate slides beneath another at a convergent boundary due to lithospheric differences. These plates dip at an average of 45° but can

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