the tenrou island arc started with the episode tenrou tree ''.
the tenrou island arc started with the episode tenrou tree ''.
what episode does the tenrou island arc start?
tenrou tree ''
Na
Na
a hypothesis based on research conducted on the bay of islands complex in newfoundland suggests that an irregular continental margin colliding with an island arc complex causes ophiolite generation in a back-arc basin and obduction due to compression. the continental margin, promontories and reentrants along its length, is attached to the subducting oceanic crust, which dips away from it underneath the island arc complex. as subduction takes place, the buoyant continent and island arc complex converge, initially colliding with the promontories. however, oceanic crust is still at the surface between the promontories, not having been subducted beneath the island arc yet. the subducting oceanic crust is thought to split from the continental margin to aid subduction. in the event that the rate of trench retreat is greater than that of the island arc complex's progression, trench rollback will take place, and by consequence, extension of the overriding plate will occur to allow the island arc complex to match the trench retreat's speed. the extension, a back-arc basin, generates oceanic crust: ophiolites. finally, when the oceanic lithosphere is entirely subducted, the island arc complex's extensional regime becomes compressional. the hot, positively buoyant ocean crust from the extension won't subduct, instead obducting onto the island arc as an ophiolite. as compression persists, the ophiolite is emplaced onto the continental margin.
ophiolite