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What two ingredients in magma affect the type of explosion and shape of a volcano?
water and mantle rock +++ More specifically, the silica proportion, plus water and gases from entrained wet, organic-rich sediment if the volcano is from subduction rather than a constructive plate margin. Increasing silica increases the magma's viscosity; the water and gas make it effervesce in the eruption.
What does not affect the formation of Magma?
Star Wars Movies do not affect the formation of magma.
What type of magma forms the most exlosive volcanoes?
Gaseous thick magma equals massive explosion.
What was Mt St Helens best known eruption?
Mt. St. Helen's most well known eruption occoured on May 18, 1980, at 8:32 A.M. The massive eruption happened because of a huge landslide on the side of the volcanoe. This landslide opened up a pocket of magma, causing a gignormeous explosion on the side of the volcanoe. In a matter of minutes, about 280 sq. miles of land was destroyed, killing 57 people and millions of animals and insects.
What type of magma produces violent reaction?
Acidic lava is very viscous, and thus will harden and block the vent. The magma will force its way out through the vent and create a violent explosion.
What is a throat of a volcano?
It is like a pipe within the volcanoe in which the magma exits the volcanoe
What is the area where magma collects inside a volcanoe before it erupts?
Magma chamber.
What happens to the stone as it reaches the surface?
when the lava rock is in the volcanoe it is magma, and when it reaches the outside of the volcanoe it is lava.
Magma that reaches earths surface and flows from volcanoe?
lava
Explain the formation of a volcanic landform that can result when a volcanoe uses up the magma in its magma chamber?
cheese
Why do volcanes erupt?
volcanoes erupt because in the magma there are gas bubbles the gas bubbles swell and then the volcanoe burst out with lava and carbon dixoide and ash and clouds come out the magma flows down the side of the volcanoe and then it cools the volcanoe can get up to 1000000 degress
What two ingredients in magma affect the type of explosion and shape of a volcano?
water and mantle rock +++ More specifically, the silica proportion, plus water and gases from entrained wet, organic-rich sediment if the volcano is from subduction rather than a constructive plate margin. Increasing silica increases the magma's viscosity; the water and gas make it effervesce in the eruption.
What is in a volcanoes?
the magma in the core of the erath pushes it's self through a crack in the erath's crust and when the magma burst out from the pressure behind it, it becomes lava, so magma is in a volcanoe.
What mainly determines the viscosity of a magma?
Viscosity is the measure of a liquids resistance to flow. In the case of magma, the hotter it is, the lower the viscosity.
How are hot spot valcanoes different from valcanoes in other places?
the magma in the volcanoe is hotter than in other volcanoes
What problems doesa volcanoe cause?
Volcanoes have dangerous gases which can kill people and its magma will turn into rock and harden
Why is silica rich magma explosive?
This is because silica-rich magma is thicker. The thicker the magma, the chance for the dissolved gas in there to escape is less likely. This causes an explosion. When the gases do escape, they cause an even bigger explosion
