| continental convergence |  |
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| Convergence accommodated by shortening and thickening | ||||||||
| Upon the closure of oceanic areas, convergence between continental landmasses is accommodated by crustal thickening and the subduction of sub-continental lithospheric mantle. The action of gravitational forces is responsible for the migration of crustal thickening away from the suture zone. The geometry of crustal thickening is that of crustal-scale accretionary prism whose asymmetry reflects the original vergence of the oceanic subduction. | ||||||||
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| from Malavieille, ISTIM, USTL, Montpellier, fr | ||||||||
| @ Vanderheaghe, CRPG, Univ. Nancy, fr | ||||||||
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