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Basaltic magmas are associated with fissure eruptions creating lava flows spilling out from cracks in the crust. This is because basaltic magmas are more viscous and contain a lower concentration of gases than rhyolitic magma and therefore are unable to build up sufficient pressure to produce explosive eruptions.
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∙ 15y ago
Mafic magmas typically cause effusive eruptions, characterized by the gentle flow of lava. These eruptions can create shield volcanoes and basaltic lava flows.
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∙ 15y agoMafic magmas cause the less explosive eruptions found in basaltic regions such as Mauna Loa in Hawaii.
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∙ 14y agoviolent eruptions
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∙ 13y agolava flow and tephra
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What type of magma does a composite volcano have?
Composite volcanoes typically have andesitic magma, which is intermediate in composition between felsic and mafic magmas. This type of magma is more viscous than mafic magma, leading to explosive eruptions and the buildup of lava and ash layers that form the characteristic steep-sided cone shape of composite volcanoes.
Is the mt paricutin volcanoes magma mafic intermediate or felsic?
The magma of Paricutin volcano is classified as basaltic, which is a type of mafic magma. Mafic magmas are characterized by their low silica content and high levels of magnesium and iron.
This type of magma has low silica content?
Mafic magma has low silica content. It is usually rich in magnesium and iron, leading to its high density and fluid-like behavior. Mafic magmas tend to form basaltic rocks when they solidify.
How does Felsic magmas different from mafic magmas in color temperate minerals composition and the kind of rock each form?
Felsic magmas are light in color, have higher silica content, and are enriched in minerals like quartz, feldspar, and muscovite. They form rocks like granite when they cool and solidify. Mafic magmas are dark in color, have lower silica content, and are enriched in minerals like pyroxene and olivine. They form rocks like basalt when they cool and solidify.
Does Krakatoa have felsic magma or mafic?
Krakatoa volcano typically has mafic magma, which is low in silica content and high in magnesium and iron. This type of magma tends to be more fluid and can lead to explosive eruptions due to the rapid release of gases.
What type of magma does a composite volcano have?
Composite volcanoes typically have andesitic magma, which is intermediate in composition between felsic and mafic magmas. This type of magma is more viscous than mafic magma, leading to explosive eruptions and the buildup of lava and ash layers that form the characteristic steep-sided cone shape of composite volcanoes.
Is the mt paricutin volcanoes magma mafic intermediate or felsic?
The magma of Paricutin volcano is classified as basaltic, which is a type of mafic magma. Mafic magmas are characterized by their low silica content and high levels of magnesium and iron.
This type of magma has low silica content?
Mafic magma has low silica content. It is usually rich in magnesium and iron, leading to its high density and fluid-like behavior. Mafic magmas tend to form basaltic rocks when they solidify.
How does Felsic magmas different from mafic magmas in color temperate minerals composition and the kind of rock each form?
Felsic magmas are light in color, have higher silica content, and are enriched in minerals like quartz, feldspar, and muscovite. They form rocks like granite when they cool and solidify. Mafic magmas are dark in color, have lower silica content, and are enriched in minerals like pyroxene and olivine. They form rocks like basalt when they cool and solidify.
Does Krakatoa have felsic magma or mafic?
Krakatoa volcano typically has mafic magma, which is low in silica content and high in magnesium and iron. This type of magma tends to be more fluid and can lead to explosive eruptions due to the rapid release of gases.
What type of eruptions cause a cinder cone?
Explosive
What is the link between the chemical composition of magma and the type of volcanic activity?
The chemical composition of magma influences its viscosity, gas content, and temperature, which in turn affect the type of volcanic activity. For example, silica-rich magma tends to be more viscous and can lead to explosive eruptions, while mafic magma with lower silica content tends to erupt more quietly with lower viscosity. The gas content in magma also plays a role in determining the explosiveness of volcanic activity.
Plinian eruptions are the most powerful type of eruption They are usually caused by what kind of magma?
Plinian eruptions are caused by highly viscous magma with high eruptive column heights, explosive fragmentation of magma, and high gas content, often derived from silica-rich (silicic) magma. This type of magma tends to trap gases leading to highly explosive eruptions characteristic of Plinian events.
What type of magma does the eyjafjallajokull produce?
Eyjafjallajökull volcano in Iceland produces andesitic magma, which is a type of intermediate magma that has a silica content between basaltic and rhyolitic magmas. This type of magma can lead to explosive eruptions due to its high viscosity, gas content, and tendency to form pyroclastic flows.
What is a type of mafic phaneritic rock?
Gabbro is a type of mafic phaneritic rock. It is composed mainly of pyroxene, plagioclase feldspar, and often contains minor amounts of amphibole, olivine, or biotite. Gabbro forms from the slow crystallization of mafic magma deep within the Earth's crust.
What igneous rock or magma has the lowest silica content?
Peridotite, a type of ultramafic rock composed largely of the mineral olivine, has the least silica.Read more: Which_igneous_rock_out_of_granite_basalt_andesite_and_peridotite_has_the_lowest_silica_SiO2_content
What lava type does the Santa Ana volcano have?
Mafic
