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Which of the following geologic regions produces the greatest volume of magma?
Subduction zones produce the greatest volume of magma due to the subduction of one tectonic plate beneath another, allowing for the melting of rock and the formation of magma. This process is associated with volcanic arcs and chains of stratovolcanoes, contributing to significant magma production.
What type of magma dose eyjafjallajokull has?
Eyjafjallajökull primarily produces basaltic to andesitic magma. The composition of its magma is influenced by the subduction of the North American Plate beneath the Eurasian Plate, which can lead to more evolved magma types. This volcanic system is known for its explosive eruptions due to the interaction of magma with ice and water, as seen in its 2010 eruption.
What geologic regions produces the greatest volume of magma?
Subduction zones, where one tectonic plate slides beneath another, tend to produce the greatest volume of magma. The intense heat and pressure created during this process can cause melting of the subducted plate, leading to significant magma production. This magma can rise to the surface and result in volcanic activity.
What happens to excess magma created in a subduction zone?
In a subduction zone, excess magma generated from the melting of the subducting plate and surrounding mantle material typically rises to form volcanic arcs. This magma can lead to the creation of volcanoes as it accumulates in magma chambers beneath the Earth's surface. Eventually, some of this magma erupts, contributing to volcanic activity, while the remainder may solidify underground, forming intrusive igneous rocks. Over time, continuous subduction can lead to the growth of mountain ranges and the formation of new landmasses.
Is Kilauea the result of subduction or a hot spot?
Kilauea is a result of a hot spot, not subduction. It is located on the Big Island of Hawaii, which sits over a volcanic hot spot in the Earth's mantle. This hot spot produces magma that rises to the surface, causing the formation of volcanoes like Kilauea. In contrast, subduction involves one tectonic plate sliding beneath another, leading to different volcanic activity.
Which of the following geologic regions produces the greatest volume of magma?
Subduction zones produce the greatest volume of magma due to the subduction of one tectonic plate beneath another, allowing for the melting of rock and the formation of magma. This process is associated with volcanic arcs and chains of stratovolcanoes, contributing to significant magma production.
What type of magma dose eyjafjallajokull has?
Eyjafjallajökull primarily produces basaltic to andesitic magma. The composition of its magma is influenced by the subduction of the North American Plate beneath the Eurasian Plate, which can lead to more evolved magma types. This volcanic system is known for its explosive eruptions due to the interaction of magma with ice and water, as seen in its 2010 eruption.
How is magma created in a subduction zone?
Magma is created in a subduction zone when one tectonic plate is forced beneath another plate. The intense pressure and heat cause the subducted plate to melt, forming magma that rises to the surface and can lead to volcanic activity.
How is magma generated along subduction zones?
Magma is generated along subduction zones when oceanic plates are forced beneath continental plates. The intense heat and pressure cause the oceanic plate to melt, creating magma that rises to the surface and forms volcanoes.
What geologic regions produces the greatest volume of magma?
Subduction zones, where one tectonic plate slides beneath another, tend to produce the greatest volume of magma. The intense heat and pressure created during this process can cause melting of the subducted plate, leading to significant magma production. This magma can rise to the surface and result in volcanic activity.
What happens to excess magma created in a subduction zone?
In a subduction zone, excess magma generated from the melting of the subducting plate and surrounding mantle material typically rises to form volcanic arcs. This magma can lead to the creation of volcanoes as it accumulates in magma chambers beneath the Earth's surface. Eventually, some of this magma erupts, contributing to volcanic activity, while the remainder may solidify underground, forming intrusive igneous rocks. Over time, continuous subduction can lead to the growth of mountain ranges and the formation of new landmasses.
Where is andesitic magma found?
Andesitic magma is commonly found in subduction zones where oceanic crust is being forced beneath continental crust. These environments are typically associated with volcanic arcs and stratovolcanoes. Examples of where andesitic magma is found include the Andes Mountains in South America and the Cascades in the western United States.
Is Kilauea the result of subduction or a hot spot?
Kilauea is a result of a hot spot, not subduction. It is located on the Big Island of Hawaii, which sits over a volcanic hot spot in the Earth's mantle. This hot spot produces magma that rises to the surface, causing the formation of volcanoes like Kilauea. In contrast, subduction involves one tectonic plate sliding beneath another, leading to different volcanic activity.
What type of magma produces pahoehoe?
Magma that is low in silica flows readily and produces dark-colored lava. Therefore magma that is low in silica produces Pahoehoe lava. This is called mafic or basaltic magma.
Magma that is low in silica and produces nonexplosive eruptions?
Low viscosity mafic magma.
What process is evident at oceanic trenches?
subduction, which is when one tectonic plate is pushed down beneath another tectonic plate.
What was obsidian before it was obsidian?
It was liquid rock (magma) which solidified after an extrusion or eruption. Crustal rocks can re-dissolve into magma during subduction of oceanic crust.
