Convergent Boundary: the boundary between tectonic plates that are colliding.
Subduction: the region along a plate boundary where one plate moves under another plate
Example: The Cascadia Subduction Zone
Example: The Cascadia Subduction Zone
Volcanic Island Arc: Volcanic Island Arcs are a chain of volcanoes, with arc-shaped alignment, situated parallel and close to a boundary between two converging tectonic plates. Most of these island arcs are formed as one oceanic tectonic plates subduction another one and, in most cases, produces magma at depth below the over-riding plate.
Example: Aleutian Islands, Northeastern Japan arc
Example: Aleutian Islands, Northeastern Japan arc
Orogenesis (mountain building) refers to forces and events leading to a large structural deformation of the Earth's lithosphere (crust and uppermost mantle) due to the convergence of tectonic plates.
Example: the Alleghenian (Appalachian), Laramide
Example: the Alleghenian (Appalachian), Laramide
Continental Volcano Arcs: are chains of volcanoes positioned in an arc shape as seen from above. Offshore volcanoes form islands, resulting in a volcanic island arc.Generally they result from the subduction of an oceanic tectonic plate under another tectonic plate, and often parallel an oceanic trench.
Example: Alaska Peninsula, Aleutian Range
Example: Alaska Peninsula, Aleutian Range