It is usually associated with convergent plate boundaries (subduction zone). This form of volcano is mostly seen in the Pacific Ring of Fire. Which type of plate boundary is the likely setting for this volcano? At a divergent boundary, tectonic plates move apart from one another. The two types of plate boundaries that are most likely to produce volcanic activity are divergent plate boundaries and convergent plate boundaries. Volcanoes are most common in these geologically active boundaries. Similarly, what type of volcano is Eyjafjallajökull? strato volcanoĪccordingly, what type of plate boundary do most volcanoes occur along? The Cascades are a chain of volcanoes at a convergent boundary where an oceanic plate is subducting beneath a continental plate. Volcanoes at convergent plate boundaries are found all along the Pacific Ocean basin, primarily at the edges of the Pacific, Cocos, and Nazca plates. Eyjafjallajokull is located below a glacier.īesides, which volcanoes are located at convergent plate boundaries? As the plates move apart magma fills the magma chamber below Eyjafjallajokull. There are no volcanoes at a conservative plate boundary.Iceland lies on the Mid Atlantic Ridge, a constructive plate margin seperating the North American plate and the Eurasian plate. The earthquakes at a conservative plate boundary can be very destructive as they occur close to the Earth's surface. When the pressure is released, it sends out huge amounts of energy causing an earthquake. Pressure builds up because the plates are still trying to move. As the plates try to move, friction occurs and plates become stuck. Conservative plate boundariesĪt a conservative plate boundary, the plates slide past each other in opposite directions, or in the same direction but at different speeds. Landforms at a divergent plate boundary include ocean ridges, eg the Mid-Atlantic ridge (where the Eurasian plate and the North Atlantic plate are moving apart from each other under the Atlantic Ocean), rift valleys eg the East African Rift Valley and shield volcanoes. Rising magma can also create shield volcanoes. The movement of the plates over the mantle can cause earthquakes. When this happens the magma from the mantle rises up to make (or construct) new crust. Divergent plate boundariesĪt a divergent plate boundary - also known as a constructive plate boundary, the plates move apart from one another. Earthquakes can occur at collision boundaries. If two continental plates collide, neither can sink and so the land buckles upwards to form fold mountains. The volcanic eruptions are often violent, with lots of steam, gas and ash. The magma escapes through weaknesses in the rock and rises up through a composite volcano, also known as a stratovolcano. The collision of tectonic plates can result in earthquakes, volcanoes, the formation of mountains, and other geological events. The pressure of the magma builds up beneath the Earth's surface. A convergent plate boundary is a location where two tectonic plates are moving toward each other, often causing one plate to slide below the other (in a process known as subduction). When the plate sinks into the mantle it melts to form magma. This happens because the oceanic plate is denser (heavier) than the continental plate. This is known as subduction and results in the formation of an ocean trench. The plates move towards one another and this movement can cause earthquakes and volcanoes.Īs the plates collide, the oceanic plate is forced beneath the continental plate. Convergent plate boundariesĪ convergent plate boundary also known as a destructive plate boundary, usually involves an oceanic plate and a continental plate. The point at which two plates meet is called a plate boundary or margin.
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