| Island Arc |
Article Index for Island |
Website Links For Island |
Information AboutIsland Arc |
|
On the subducting side of the island arc is a deep and narrow Oceanic Trench , which is the trace at the Earth’s surface of the boundary between the downgoing and overriding plates. This trench is created by the Friction of the subducting plate pulling the leading edge of the overriding plate downward. Great frictional forces heat the rock on both plates in this area. Multiple Earthquake s occur along this subduction boundary with the Seismic Epicenter s located at increasing depth under the island arc. Oceans basins that are being reduced by subduction are called 'remnant oceans' as they will slowly be shrunken out of existence and crushed in the subsequent Orogenic collision. This process has happened over and over in the geologic history of the Earth. ISLAND ARCS
|
|
|