which type of plate boundary is most often associated with explosive volcanic eruptions?
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Sometimes, the plates collide with one another or move apart. Volcanoes are most common in these geologically active boundaries. The two types of plate boundaries that are most likely to produce volcanic activity are divergent plate boundaries and convergent plate boundaries.
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Convergent Plate Boundaries. Sections of the Ring of Fire , subduction zones that surround much of the Pacific Ocean, are underwater. Submarine volcanoes at these convergent plate boundaries are much like their counterparts on land. Many of these volcanoes form new islands that last only a short time.
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At a convergent plate boundary, when one plate is oceanic, there are large volcanoes. These volcanoes are found in lines that outline the subduction zone.
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A convergent plate boundary , also known as a destructive plate boundary , usually involves an oceanic plate and a continental plate. The plates move towards one another and this movement can cause earthquakes. As the plates collide, the oceanic plate is forced beneath the continental plate.
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About 80% of earthquakes occur where plates are pushed together, called convergent boundaries. Another form of convergent boundary is a collision where two continental plates meet head-on. Since neither plate is stronger than the other, they crumple and are pushed up.
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A destructive plate boundary is sometimes called a convergent or tensional plate margin. This occurs when oceanic and continental plates move together. The oceanic plate is forced under the lighter continental plate. Friction causes melting of the oceanic plate and may trigger earthquakes.
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Where do Earthquakes most likely occur? plate boundaries and areas where two plates meet at fault lines and at the "Ring of Fire."
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['Hot spots,', 'Divergent plate boundaries (such as rifts and mid-ocean ridges), and.', 'Convergent plate boundaries (subduction zones)']
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(3) Transform Boundaries Tectonic Plates and Active Volcanoes of the World: Most active volcanoes are located along or near the boundaries of Earth's shifting tectonic plates. Hawaiian volcanoes, however, occur in the middle of the Pacific Plate and are formed by volcanism over the Hawaiian "Hot Spot" (see text).
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In general, the more felsic the magma the greater the volatile content. So mafic/basaltic volcanoes are fairly quiescent, intermediate/andesitic volcanic eruptions are moderately explosive, and felsic/rhyolitic volcanoes may be extremely explosive.
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The location where two plates meet is called a plate boundary. Plate boundaries are commonly associated with geological events such as earthquakes and the creation of topographic features such as mountains, volcanoes, mid-ocean ridges, and oceanic trenches.
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Most active divergent plate boundaries occur between oceanic plates and exist as mid-oceanic ridges. Divergent boundaries also form volcanic islands, which occur when the plates move apart to produce gaps that molten lava rises to fill.
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There are three kinds of plate tectonic boundaries: divergent, convergent, and transform plate boundaries. This image shows the three main types of plate boundaries: divergent, convergent, and transform. Image courtesy of the U.S. Geological Survey. Download image (jpg, 76 KB).
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Constructive plate boundaries are when there are two plates moving apart from each other. They are called constructive plates because when they move apart, magma rises up in the gap- this forms volcanoes and eventually new crust. ... Destructive plate boundaries are when oceanic and continental plates move together.
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The composition of magma that erupts at composite volcanoes is usually felsic (rhyolite) or intermediate (andesite). Composite volcanoes are common along convergent plate boundaries. When a tectonic plate subducts, it melts. This creates the thick magma needed for these eruptions.
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Types of earthquakes. There are many different types of earthquakes: tectonic, volcanic, and explosion. The type of earthquake depends on the region where it occurs and the geological make-up of that region. The most common are tectonic earthquakes.
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In general, the more felsic the magma the greater the volatile content. So mafic/basaltic volcanoes are fairly quiescent, intermediate/andesitic volcanic eruptions are moderately explosive, and felsic/rhyolitic volcanoes may be extremely explosive. ... Their high volatile content makes them potentially highly explosive.