Volcanic eruptions range from explosive to quiet depending on the viscosity of the magma & the amount of dissolved gases. Felsite volcanoes are the most viscous & the most explosives. The explosive products from a volcano are called pyroclastic rocks. Thus the most explosive volcano are those whose composition is felsitic.This viscous felsite may plug the vocano, causing the pressure to build within it. When the pressure becomes great, an explosive eruption will occur. That is how composite volcoanos are formed.
The 1980 eruption of Mount St. Helens produced dacite, which has an intermediate-felsic composition.
it has mafic and felsic duhhhhh
As a shield volcano, Mauna Kea erupts mafic lava.
Composite volcanoes can erupt both mafic and felsic material, but intermediate material is the most common.
Paricutin volcano in Mexico predominantly erupted mafic lava, which is rich in magnesium and iron and has a low silica content. This type of lava tends to flow more easily compared to felsic lava.
The 1980 eruption of Mount St. Helens produced dacite, which has an intermediate-felsic composition.
it has mafic and felsic duhhhhh
As a shield volcano, Mauna Kea erupts mafic lava.
Composite volcanoes can erupt both mafic and felsic material, but intermediate material is the most common.
Paricutin volcano in Mexico predominantly erupted mafic lava, which is rich in magnesium and iron and has a low silica content. This type of lava tends to flow more easily compared to felsic lava.
While some textbooks might say "no", the real answer is "sometimes". Composite volcanoes are highly varied in what they erupt with magmas across the whole range from mafic to felsic. On average the rock in most composite volcanoes is intermediate.
They can. Composite volcanoes vary in what they erupt. Many composite volcanoes are composed of a mixture of mafic, felsic, and intermediate rock. However, in most cases intermediated or felsic rock predominates.
Mafic lava is hotter than felsic lava and therefore flows faster.
Oh, dude, Mt. Etna has both mafic and felsic lava. It's like a lava buffet up there! Mafic lava is low in silica and more runny, while felsic lava is high in silica and thicker. So, yeah, Mt. Etna serves up a mix of both, keeping things interesting for all the volcano enthusiasts out there.
mafic lava is the KIND of lava produced in mount (mt) Fuji.
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.
Mauna Loa volcano in Hawaii typically has mafic magma, which is rich in magnesium and iron, resulting in low viscosity and flowing lava. This magma composition contributes to the shield volcano shape and frequent eruptions on Mauna Loa.