magma forms in mantle above slab
The type of tectonics where volcanoes occur are continental rift volcanism, hot spot, and continental volcanic arc. The other tectonics are subduction zones and rift valleys on a continental crust.
Convergent plate boundaries can form both mountain ranges and subduction zones. Mountain ranges are typically formed when two continental plates collide, leading to compression and uplift of the crust. Subduction zones are formed when an oceanic plate is forced beneath another plate, usually resulting in the formation of deep ocean trenches and volcanic activity.
Volcanoes in the Ring of Fire are formed due to the subduction of tectonic plates. In this region, the Pacific Plate is being forced beneath other plates, leading to intense geological activity that results in volcanic eruptions. This subduction process creates magma chambers beneath the Earth's crust, which can lead to the formation of volcanoes when the magma rises to the surface.
when two oceanic plates collideSubduction zones form along convergent boundaries and can be thousands of kilometers long. Subduction zones allows one plate to slide beneath another plate, and enter into the mantle.
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.
I think it would be shield volcanoes because it was it!
False. Hotspot volcanoes form above mantle plumes, which are localized upwellings of hot mantle material. Subduction zone volcanoes form due to the subduction of one tectonic plate beneath another, resulting in magma generation due to the melting of the subducted plate.
Usually, yes. Occasionally, though they can form in rift zones or at continental hotspots.
Composite or stratovolcanoes typically form along subduction zones. These volcanoes are characterized by their steep-sided profile, explosive eruptions due to the presence of viscous magma, and alternating layers of lava flows and volcanic ash. Subduction zones are where one tectonic plate slides beneath another plate, leading to magma formation and volcanic activity.
A type of rock that would likely form from magma solidifying at considerable depth beneath subduction zones is basalt. Basalt is a common igneous rock formed from the solidification of mafic magma, which is typical of volcanic activity at subduction zones. It is fine-grained and commonly found in the oceanic crust formed at these zones.
The Pacific Ocean basin is rimmed by the most subduction zones. These subduction zones form as one tectonic plate is forced beneath another, creating deep ocean trenches. The Pacific Ring of Fire, which encircles the Pacific Ocean, is known for having numerous subduction zones and is associated with high levels of seismic activity and volcanic eruptions.
A composite volcano is most likely to form at subduction zones where an oceanic plate is being subducted beneath a continental plate. The interaction between the two plates causes magma to rise, leading to the formation of a composite volcano due to the explosive eruptions caused by the high silica content in the magma.
Trenches are deep ocean features of subduction zones.
composite volcanoes
Volcanoes form above plumes or "hot spots." The plate moves over this location, making a chain of volcanoes like Hawaii. Volcanoes also form around subduction zones. One plate moves under another, causing the the edges of the plate to melt making volcanoes, islands, and mountains. Volcanoes can also lie over magma chambers that have lava that leaked from the lithosphere into the crust.
They can, though they are more dominant at subduction zones.
It is not so much that volcanoes tend to occur on islands as much as many islands are formed by volcanoes. Subduction zones and hot spots often cause volcanoes to develop on the sea floor. Erupted material then piles up to form islands.