Investigate plate tectonics and the geologic cycle, which begins with magma beneath the Earth's crust and ends with igneous rock.
As two plates move apart or one plate dives beneath another, magma (molten subterranean rock) erupts to the surface through volcanic vents near the plate boundaries.
Volcanoes are often classed according to their size and shape (as explained in the section Volcanic landforms), but they can also be classified according to their eruptive behavior. Indeed, the type of volcanic eruption that happens has a considerable impact on how a volcanic landform evolves, meaning that eruptive behavior and volcanic structure are inexorably intertwined. The effusive or explosive nature of eruptions can be distinguished. Effusive eruptions are characterized by the spilling of basaltic lava.
Types of volcanic eruption
Molten basaltic lava effusions pour from lengthy, parallel fissures, distinguishing the Icelandic kind. Such outpourings frequently result in lava plateaus.
The Hawaiian type is similar to the Icelandic type. Shield volcanoes, which are large and have gentle slopes like this example, are formed by fluid lava pouring from a volcano's top and radial fissures.
Strombolian eruptions feature minor bursts of expanding gases that discharge clots of incandescent lava in cyclical or nearly continuous micro eruptions. Because of its small but frequent eruptions, the Stromboli volcano on Stromboli Island off the northeast coast of Italy has been dubbed the "lighthouse of the Mediterranean."
The Vulcanian variety is characterized by mild ash-laden gas explosions and is named after Vulcano Island near Stromboli. This mixture produces dark, chaotic eruption clouds that rise rapidly and take on complex shapes.
Pelean eruptions are linked to explosive outbursts that produce pyroclastic flows, dense combinations of hot volcanic debris and gas, as mentioned in the section Lava, gas, and other dangers. The Pelean eruptions began in 1902, when Mount Pelée on the Caribbean island of Martinique erupted in a massive eruption. Fluidized slurries, heavier than air but with a low viscosity, are produced by these eruptions and flow down valleys and slopes at rapid speeds. As a result, they're a major headache.
The eruption of Mount Vesuvius in Italy in 79 CE, which killed the famed Roman scholar Pliny the Elder and was reported by his nephew, historian Pliny the Younger, in an eyewitness account, represents the Plinian type of volcanic eruption. In this type of eruption, gases boiling out of gas-rich magma form tremendous, almost constant jetting blasts that core out the magma conduit and rip it apart. The rising smoke and volcanic debris resemble a gigantic vertical rocket blast. Plinian eruption clouds have the ability to reach the stratosphere and can last for several hours. Near Plinian ash clouds, lightning strikes caused by a buildup of static charge are common, adding still another variable to the equation.
base on the discussion,what are the types of volcanic eruptions? describe each type of volcanic eruption
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TYPES OF VOLCANIC ERUPTION
Investigate plate tectonics and the geologic cycle, which begins with magma beneath the Earth's crust and ends with igneous rock.
As two plates move apart or one plate dives beneath another, magma (molten subterranean rock) erupts to the surface through volcanic vents near the plate boundaries.
Volcanoes are often classed according to their size and shape (as explained in the section Volcanic landforms), but they can also be classified according to their eruptive behavior. Indeed, the type of volcanic eruption that happens has a considerable impact on how a volcanic landform evolves, meaning that eruptive behavior and volcanic structure are inexorably intertwined. The effusive or explosive nature of eruptions can be distinguished. Effusive eruptions are characterized by the spilling of basaltic lava.
Types of volcanic eruption
base on the discussion,what are the types of volcanic eruptions? describe each type of volcanic eruption
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