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the type of material it is, is a composite which has high eruptive forces, has high silica content, and has high gas content. which makes it an eruption product of gas and ash.
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∙ 14y ago
Wiki User
∙ 9y agoMount St Helens is made up of andesitic and rhyolitic pyroclastic materials.
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∙ 12y agoit is made out of ma
oltin rock or lava that come out of the volcano and that repeats
Wiki User
∙ 10y agoThe answert is BASALT.
Wiki User
∙ 13y agomount st helens is a igneous rock dakotah
Wiki User
∙ 11y agolava rock
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What kind mountain is mount st Helens?
Mount St. Helens consists of lava rock interlayered with ash, pumice and deposits, together with layers of basalt and andesite.
What type of rock layer does mount st helens have?
As Mount St. Helens is a volcano the slopes would be covered in layers of volcanic dust and lava.
What type of valcano is mt st Helens?
Mount St Helens is a composite cone (strato) volcano.
What type of eruptions does mount st Helens do?
Like most stratovolcanoes, Mount St Helens alternates between explosive and effusive eruptions.
Mount St Helens has layers of this type of rock as well as Andesite through which several domes of Dacite lava have erupted?
The rock type you're looking for is basalt -- St. Helens contains basalt, andesite, and dacite in the form of lava flows and pyroclastic deposits.
What kind mountain is mount st Helens?
Mount St. Helens consists of lava rock interlayered with ash, pumice and deposits, together with layers of basalt and andesite.
What type of rock is around mt st Helen's?
Mount St Helens is composed primarily of dacite.
What type of rock layer does mount st helens have?
As Mount St. Helens is a volcano the slopes would be covered in layers of volcanic dust and lava.
What type of valcano is mt st Helens?
Mount St Helens is a composite cone (strato) volcano.
What type of mountain is mount st helens)?
Volcano.
What type of landform is mount st helens?
Volcano
What type of eruptions does mount st Helens do?
Like most stratovolcanoes, Mount St Helens alternates between explosive and effusive eruptions.
What kind of volcano is Mount St. Helens in Washington?
Mount St. Helens, an active stratovolcano, is of the composite type.
Mount St Helens has layers of this type of rock as well as Andesite through which several domes of Dacite lava have erupted?
The rock type you're looking for is basalt -- St. Helens contains basalt, andesite, and dacite in the form of lava flows and pyroclastic deposits.
What is the classification of mount st Helens?
Mount St. Helens is an active stratovolcano
What type is mount st helens?
It's an active stratovolcano
What type of plate boundary is Mount St. Helens?
subduction
