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it's explosive

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Mt. St. Helens is known for its explosive eruption in 1980, characterized by ash clouds, pyroclastic flows, and lateral blasts. It is considered one of the most significant volcanic events in U.S. history.

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Q: Mt st helens volcano explosive or effusive?
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Is mt st helens non-explosive or explosive?

Mount St. Helens is generally regarded as an explosive volcano, but like most stratovolcanoes, it can produce both explosive and non-explosive eruptions.


What rock forms when Mount St Helens erupts?

Mt. St. Helens has erupted a very broad spectrum of igneous rocks. Primarily it is known as an explosive volcano meaning that it most commonly erupts Dacite, which has a high amount of silica present in the rock. However, throughout the geologic history of the volcano it has erupted everything from Basalt (very fluid, Hawaiian style) magma, to Rhyodacite (very sticky, explosive) style of magma. The silica content in a volcanoes magma supply primarily determines if the volcano will tend to have an explosive type of eruption or if it will tend to fountain lava. Mt. St. Helens having primarily Dacite tends to be a commonly more explosive volcano when it goes through its eruption periods. For a further detailed geologic history of Mt. St. Helens please see related links to the Geologic History of Mt. St. Helens as provided by the United States Geological Survey, Cascades Volcano Observatory.


What type of volcano was Mt thera?

Mt. Thera, also known as Santorini, is a composite volcano, which is a mix of explosive and effusive eruptions. It is characterized by its steep slopes and periodic explosive eruptions due to the buildup of gas pressure within the magma chamber.


What is one volcano that has erupted?

Mt. Helens


Is mt shasta a explosive or a non-explosive volcano?

Mount Shasta is considered a potentially explosive stratovolcano due to its composition of andesite and dacite lava which can lead to explosive eruptions. However, its most recent eruptions have been relatively non-explosive with mainly effusive lava flows.

Related questions

Is mt st helens non-explosive or explosive?

Mount St. Helens is generally regarded as an explosive volcano, but like most stratovolcanoes, it can produce both explosive and non-explosive eruptions.


Is Mt Saint Helens a volcano?

yes, Mt Saint Helens is a volcano. located in Skamania County, Washington


What Volcano in the northwestern US?

Mt. St. Helens Mt. St. Helens


What type of volcanoe is Mt St Helen?

Mount St. Helens is a stratovolcano, also known as a composite volcano. This type of volcano is characterized by its steep slopes and explosive eruptions due to a mixture of lava flows and pyroclastic material.


Is mt kilauea explosive?

No. Kilauea generally produces effusive eruptions. Explosive eruptions are rare.


What is mt siant helens'?

volcano


Why did Mt. Helens explode?

its a volcano


What rock forms when Mount St Helens erupts?

Mt. St. Helens has erupted a very broad spectrum of igneous rocks. Primarily it is known as an explosive volcano meaning that it most commonly erupts Dacite, which has a high amount of silica present in the rock. However, throughout the geologic history of the volcano it has erupted everything from Basalt (very fluid, Hawaiian style) magma, to Rhyodacite (very sticky, explosive) style of magma. The silica content in a volcanoes magma supply primarily determines if the volcano will tend to have an explosive type of eruption or if it will tend to fountain lava. Mt. St. Helens having primarily Dacite tends to be a commonly more explosive volcano when it goes through its eruption periods. For a further detailed geologic history of Mt. St. Helens please see related links to the Geologic History of Mt. St. Helens as provided by the United States Geological Survey, Cascades Volcano Observatory.


What type of volcano was Mt thera?

Mt. Thera, also known as Santorini, is a composite volcano, which is a mix of explosive and effusive eruptions. It is characterized by its steep slopes and periodic explosive eruptions due to the buildup of gas pressure within the magma chamber.


What is one volcano that has erupted?

Mt. Helens


What is a really famous volcano?

Mt Pompeii and Mt Saint Helens


Is mt shasta a explosive or a non-explosive volcano?

Mount Shasta is considered a potentially explosive stratovolcano due to its composition of andesite and dacite lava which can lead to explosive eruptions. However, its most recent eruptions have been relatively non-explosive with mainly effusive lava flows.