Island arc systems now on the Tibet plateau record subduction prior to the collision of India with Eurasia. Geologists would map these pre- collisional arc rocks as_______ .

Question

Quizplus · Accepted Answer

Island arc systems are formed by subduction of oceanic lithosphere beneath another oceanic or continental plate, resulting in the formation of magma and volcanic arcs. The presence of island arc systems on the Tibet plateau suggests that subduction was occurring prior to the collision of India with Eurasia. Geologists would map these pre-collisional arc rocks as terranes, which are distinct crustal blocks with different geological histories that have a tendency to move and collide with other terranes during plate tectonic movements.

Island Arc Systems Now on the Tibet Plateau Record Subduction