Related words. 1  poke noun. 2  poke around phrasal verb. 3  poke fun (at) phrase.  a pig in a poke 1  phrase. poke a hole in something phrase.  poke/shove/stick your nose into something 1  phrase. poke about phrasal verb at poke around.  poke fun at phrase at make fun of.
Because the subduction zone (which is also the plate boundary) is generally an arc-shape, geologists named those volcanoes volcanic arcs. A volcanic arc built on continental crust is called a continental arc; when built on oceanic crust the volcanoes form an island arc. Volcanic arcs are made of an arc-shaped chain of volcanoes. 2  The position of which could be continental or mid-ocean. 3  While an island arc must be offshore and does not necessarily be volcanic (e.g. Hellenic arc).
A hot spot trail is the result of a plate moving over a stationary hot spot. Only the volcanoes near the hot spot. Those away from it in the direction of the plate's movement â¦ are extinct. A volcanic island arc is a chain of volcanoes that forms at a subduction zone, where one oceanic plate slides beneath another.s a tectonic process where two plates (an Oceanic plate and a Continental plate) collide. In Continental Arc environments the weaker oceanic plate always sub ducts under the â¦ stronger Continental plate.