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Layers and layers of primarily felsic or intermediate-composition magma -- magma that is relatively rich in silica, sodium, aluminum, and potassium. These crystallize to form granitic rocks. These are the classic shapes of volcano that every school kid knows, known as stratovolcanoes or composite volcanoes.

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What types of materials are volcanoes like Mount St. Helens made of?

Mount St Helens is made up of andesitic and rhyolitic pyroclastic materials.


What types of materials are volcanoes like Mount St. Helen made of?

Mount St Helens is made up of andesitic and rhyolitic pyroclastic materials.


What types of materials are volcanoes like mount St.Helens made of?

Mt. St. Helens is made up of layer upon layer of Pyroclastic materials from previous eruptions. The most consistent type of lava that is seen on the flanks of the volcano is Andesite, which accounts for the history of explosive eruptions as well as the fine ash that seems to be present everywhere on the volcanoes flanks. Although there are other types of magma that contributed to the forming of the volcano, it is primarily considered to be constructed of Andesite and is therefore classified as a Stratovolcano.


Do volcanoes always extrude magmas of the same type?

No, volcanoes can extrude a variety of magma types, which can vary in composition, temperature, and viscosity. Different types of volcanoes, like stratovolcanoes and shield volcanoes, often produce different types of magma due to variations in geological conditions and processes.


What are fairly steep-sided cones composed of lavas and pyroclastic layers?

Fairly steep-sided cones composed of lavas and pyroclastic layers are known as stratovolcanoes or composite volcanoes. These volcanoes are characterized by their layered structure, formed from alternating eruptions of viscous lava flows and explosive pyroclastic materials. Their steep slopes result from the accumulation of these materials over time, typically leading to more explosive volcanic activity. Examples include iconic volcanoes like Mount St. Helens and Mount Fuji.

Related Questions

What types of materials are volcanoes like Mount St. Helen's?

what types of materials are volcanoes like mount st. helens


What types of materials are volcanoes like Mount St. Helens made of?

Mount St Helens is made up of andesitic and rhyolitic pyroclastic materials.


What types of materials volcanoes like mount st Helen are made of?

Mount St Helens is made up of andesitic and rhyolitic pyroclastic materials.


What types of materials are volcanoes like Mount St. Helen made of?

Mount St Helens is made up of andesitic and rhyolitic pyroclastic materials.


What types of materials are volcano like Mount St. Helen's made of?

Mount St Helens is made up of andesitic and rhyolitic pyroclastic materials.


What types of materials are volcanos like mount st. Helen's made of?

Mount St Helens is made up of andesitic and rhyolitic pyroclastic materials.


What types of materials are volcanoes like mount St.Helens made of?

Mt. St. Helens is made up of layer upon layer of Pyroclastic materials from previous eruptions. The most consistent type of lava that is seen on the flanks of the volcano is Andesite, which accounts for the history of explosive eruptions as well as the fine ash that seems to be present everywhere on the volcanoes flanks. Although there are other types of magma that contributed to the forming of the volcano, it is primarily considered to be constructed of Andesite and is therefore classified as a Stratovolcano.


Do volcanoes always extrude magmas of the same type?

No, volcanoes can extrude a variety of magma types, which can vary in composition, temperature, and viscosity. Different types of volcanoes, like stratovolcanoes and shield volcanoes, often produce different types of magma due to variations in geological conditions and processes.


What are fairly steep-sided cones composed of lavas and pyroclastic layers?

Fairly steep-sided cones composed of lavas and pyroclastic layers are known as stratovolcanoes or composite volcanoes. These volcanoes are characterized by their layered structure, formed from alternating eruptions of viscous lava flows and explosive pyroclastic materials. Their steep slopes result from the accumulation of these materials over time, typically leading to more explosive volcanic activity. Examples include iconic volcanoes like Mount St. Helens and Mount Fuji.


Where are the volcanoes in the US A?

Volcanoes in the United States are found mainly in the states along the Pacific Northwest region, such as California, Oregon, Washington, and Alaska. The Cascade Range in the Pacific Northwest is home to notable volcanoes like Mount St. Helens and Mount Rainier. Additionally, Hawaii has volcanic activity due to the presence of active volcanoes like Kilauea and Mauna Loa.


What might volcanoes look like afterwards?

if your talking about after an eruption, it can look the same or change significantly like Mt St Helens, the whole north face was blasted away and Krakatoa completely destroyed itself some volcanoes collapse in, and the magma chamber is emptied and compressed... forming a caldera, which can be extremely explosive however, most volcanoes remain looking the same


What might volcanoes look like?

if your talking about after an eruption, it can look the same or change significantly like Mt St Helens, the whole north face was blasted away and Krakatoa completely destroyed itself some volcanoes collapse in, and the magma chamber is emptied and compressed... forming a caldera, which can be extremely explosive however, most volcanoes remain looking the same