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When a volcano erupts explosively it does not produce lava; it produces ash and pumice. The magma involved in an explosive eruption is usually felsic or intermediate. Rhyolite, dacite, and andesite are the most commonly discussed in beginner-level geology classes. However, if water gets into the volcano any type of magma can produce an explosive eruption.
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Why can lava be explosive or non explosive?
Lava is not explosive. Eruptions of magma from a volcano can be explosive or not, depending on the pressure pushing it up from deep below the Earth's surface and on how hot (thin) it is.
Is a non-explosive volcanic eruption more likely to produce lava or pyroclastic material?
Lava because pyroclastic material explodes from a volcano, Lava just runs down the surface of the volcano nonexplosive or explosive.
What type of eruptions does the Unzen volcano make?
The lava is explosive
What should you know about volcano?
it is explosive! and shoots out lava and magma.
What type of lava does an explosive eruption produce?
An explosive eruption typically produces thick and sticky lava known as silica-rich or felsic lava. This type of lava has high viscosity and trapped gas bubbles, causing it to erupt violently. As the lava is very viscous, it can block and build pressure in the volcano, resulting in explosive eruptions.
What kind of volcano had non explosive flowing lava?
mud volcanos
Is a stratovolcano a shield volcano?
No. A stratovolcano is a volcano with steep slopes consiting of layers of lava flows, ash, and pumice and is prone to explosive eruptions. A shield volcano is a volcano with broad slopes composed of layers of low viscosity lava flows and is generally not prone to explosive eruptions.
Why is the shield volcano is the least explosive?
Shield volcanoes generally have the least explosive eruptions.
Is Mount Rainier an explosive or non explosive volcano why or why not?
It is an explosive volcano. Mount Rainier is a stratovolcano, characterized by layers of ash from explosive eruptions and cooled lava flows from effusive eruptions. The high viscosity and gas content of its magma are the reason for its explosive nature.
What type of eruption does composite volcano have?
The type of eruption that a composite volcano has is lava flow with cinders and bombs in an explosive eruption
Is lava dome a type of volcano?
Not exactly. Some volcanoes do consist of simply a lava dome, but most lava domes are found in or on stratovolcanoes.
What is an explosive volcano eruption?
Most explosive volcanoes are stratovolcanoes, also called composite volcanoes.
