Convergent
Hot-spot volcanoes form at intraplate boundaries, where a plume of hot magma rises from deep within the mantle, creating volcanic activity away from tectonic plate boundaries.
Volcanoes are common on this type of plate boundary
convergence plate boundary, where tectonic plates move towards each other and collide, leading to subduction zones which are highly constructive regions of volcanoes. Volcanoes also form at divergent plate boundaries. A good example being the numerous Icelandic volcanoes which have formed over he Mid Atlantic Ridge.
The type of boundary associated with Icelandic volcanoes is the constructive plate boundary, where two plates slowly move apart and magma seeps up through the gap.
High mountain ranges without volcanoes are built at convergent continental plate boundaries. These vary greatly from divergent boundaries which cause volcanoes to form.
Metamorphic rock
Most volcanoes of any type, including cinder cones, are found at plate boundaries, but some are associated with hot spots.
Volcanoes on continents can develop at path convergent and divergent boundaries. They can occur where an oceanic plate subducts under a continental plate, producing a volcanic arc such as in the Cascade Range. Volcanoes can also occur in areas of rifting, such as Africa's Great Rift Valley, a developing divergent boundary. Where two oceanic plates converge volcanoes can develop underwater and eventually form volcanic islands. Volcanoes can also develop away from a plate boundary over a hot spot.
Shield volcanoes typically form on hot spots. These volcanoes have gentle slopes due to the low-viscosity basaltic lava they produce. Examples of shield volcanoes formed on hot spots include Mauna Loa in Hawaii and Galapagos Islands in Ecuador.
Most are shield volcanoes.
A convergent boundary is formed when plates collide. At this type of boundary, the denser plate sinks beneath the less dense plate in a process known as subduction. This collision often results in the formation of mountain ranges, volcanoes, and deep ocean trenches.
Mount Adatara is associated with a convergent plate boundary, as are all of Japan's volcanoes.