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Eruptions involcing silicic or felsic magma are generally the worst. Eruptions of mafic material are usually effusive or only mildly explosive, producing cinders or lava flows. Eruptions of felsic material often produce large ash clouds and deadly pyroclastic flows.
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Why do mafic magmas tend to reach the surface much more often than silicic magmas?
Mafic magma is less viscous or more fluid than silicic magma in much the same way that water is less viscous than molasses. Mafic magma reaches the surface more often because it flows more easily.
What type of eruptions does Mt Pinatubo have and what causes the eruption to be violent or non-violent?
what causes a eruption to be liolent is the type of lava -felsic lava is non-violent -mafic lava is violent
How the composition of magma determines an eruption's characteristics?
Silica(te) rich magma is usually an explosive eruption. The explosiveness of an eruption depends on - a) Gases trapped within the magma at eruption b) The Silica content c) The fragility of the crater walls and/or the volcanic plug.
Is mauna loa mafic or felsic?
The 1980 eruption of Mount St. Helens produced dacite, which has an intermediate-felsic composition.
Is scoria mafic?
Mafic, infact it is often refered to as: "the mafic version of pumice"
Which is more dense mafic or silicic rock?
Mafic rock is on average more dense.
Why do mafic magmas tend to reach the surface much more often than silicic magmas?
Mafic magma is less viscous or more fluid than silicic magma in much the same way that water is less viscous than molasses. Mafic magma reaches the surface more often because it flows more easily.
What are the 3 types of magma?
basaltic magma ,Andesitic magma and Rhyolitic magma
What is the igneous rocks that cool quickly on the surface?
Extrusive igenous rocks. The main types are: Komatite/picrite (ultramafic) Basalt (mafic) Andesite (intermediate) Rhyolite (felsic/silicic)
What is the difference between basaltic magma and silicic magma?
Granitic rocks are intrusive, which means they crystallized underground. Basaltic rocks are extrusive, meaning they crystallized above ground. Also, basaltic rocks are more mafic, and granitic rocks are more felsic.
What type of eruptions does Mt Pinatubo have and what causes the eruption to be violent or non-violent?
what causes a eruption to be liolent is the type of lava -felsic lava is non-violent -mafic lava is violent
What do quiet lava eruptions generally result from?
Volcanic eruptions are always caused by magma. This applies if the eruption is quiet or explosive, or whether the magma is felsic or mafic.
What is the difference between felid and mafic?
Felsic rocks have 0-15% mafic crystals, while mafic rocks have 46-85% mafic crystals.
How the composition of magma determines an eruption's characteristics?
Silica(te) rich magma is usually an explosive eruption. The explosiveness of an eruption depends on - a) Gases trapped within the magma at eruption b) The Silica content c) The fragility of the crater walls and/or the volcanic plug.
Is mauna loa mafic or felsic?
The 1980 eruption of Mount St. Helens produced dacite, which has an intermediate-felsic composition.
How do you get hot head in aqw?
It drops from the Mafic Dragon in Mafic.
Does mafic lava trap gasses?
glass is not an option in mafic
