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Like many stratovolcanoes, Mount St Helens has produced material of mafic, felsic, and intermediate composition. Overall, much of the material is itermediate. The 1980 eruption and later activity have produced dacite, which has an intermediate-felsic composition
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Do cinder cones erupt felsic or mafic lava?
Composite volcanoes can erupt both mafic and felsic material, but intermediate material is the most common.
Which moves fast felsic lava or mafic lava?
A mafic lava flow will move faster than a felsic lava flow due to its lower viscosity. However, felsic magma tends to erupt explosively, producing fast-moving pyroclastic flows instead of lava flows.
Is mafic or felsic lava produced in mt fuji?
mafic lava is the KIND of lava produced in mount (mt) Fuji.
Is lava with a high viscosity hotter than lava with a low viscosity?
Higher viscosity (felsic) lava is typically less hot than the lower viscosity (mafic) lava. Felsic magmas can erupt at temperatures as low as 650 to 750 °C. Poorer in aluminum and silica than felsic lavas, and also commonly hotter, intermediate lava (in the range of 750 to 950 °C), tends to be less viscous. Mafic to ultramafic lavas are believed to erupt up to 1600°C in the past.
Is mauna loa mafic or felsic?
The 1980 eruption of Mount St. Helens produced dacite, which has an intermediate-felsic composition.
Do cinder cones erupt felsic or mafic lava?
Composite volcanoes can erupt both mafic and felsic material, but intermediate material is the most common.
Which moves fast felsic lava or mafic lava?
A mafic lava flow will move faster than a felsic lava flow due to its lower viscosity. However, felsic magma tends to erupt explosively, producing fast-moving pyroclastic flows instead of lava flows.
What type of lava Mount Vesuvius?
Mt. Vesuvius produces felsic lava in a pyroclastic explosion.
Is mafic or felsic lava produced in mt fuji?
mafic lava is the KIND of lava produced in mount (mt) Fuji.
How did Mount Rinjani erupt?
lava came out lava came out lava came out sik answers
Is lava with a high viscosity hotter than lava with a low viscosity?
Higher viscosity (felsic) lava is typically less hot than the lower viscosity (mafic) lava. Felsic magmas can erupt at temperatures as low as 650 to 750 °C. Poorer in aluminum and silica than felsic lavas, and also commonly hotter, intermediate lava (in the range of 750 to 950 °C), tends to be less viscous. Mafic to ultramafic lavas are believed to erupt up to 1600°C in the past.
Is mauna loa mafic or felsic?
The 1980 eruption of Mount St. Helens produced dacite, which has an intermediate-felsic composition.
Did mount fuji erupt with ash?
lava mud ash
Is felsic lava thick?
Felsic lava is a slower moving lava, with high silica content. Most felsic lava deposits as granite, granite, muscovite, and orthoclase.
Between mafic lava and felsic lava which flowsfaster?
Mafic lava is hotter than felsic lava and therefore flows faster.
What type of lava does mt rainier erupt?
Much of Mount Rainier is composed of andesitelava flows. Lava flows may accompany explosive eruptive activity, but they occur more often after explosive activity declines. The term "andesite" refers to the chemical composition of the rock. Andesite lavas tend to be moderately viscous and rather slow moving: on gentle slopes, they may move much more slowly than a person can walk.
What kin d of volcano is mount rainer?
Mount Rainier is a stratovolcano. This means that it is comprised of several layers of hardened rock, lava nad volcanic ash. Mount Rainier is thought to be one of the most dangerous volcanoes in existence.
