![]() ![]() In this model, the descending oceanic slab does not slide directly under the overriding plate but instead rolls back, pulling the overlying plate seaward. Some scientists have proposed a subduction mechanism called oceanic slab rollback creates extension faults in the overriding plates. In some subduction zones, tensional forces working on the continental plate create a backarc basin on the interior side of the volcanic arc. We see the denser oceanic plate diving beneath. The forearc basin experiences a lot of faulting and deformation activity, particularly within the accretionary wedge. In this animation, we are showing an ocean/continent convergent boundary at the leading edge of the plate. This subduction zone is ocean-ocean subduction, though the same features can apply to continent-ocean subduction.Īll subduction zones have a forearc basin, a feature of the overriding plate found between the volcanic arc and oceanic trench. The amazing Himalaya Mountains are the result of this type of convergent plate boundary. Download scientific diagram Different convergent Boundaries (A) Oceanic-Continental, (B) OceanicOceanic
0 Comments
Leave a Reply. |
AuthorWrite something about yourself. No need to be fancy, just an overview. ArchivesCategories |