Q:
What three factors determine the nature of a volcanic eruption?
A:
Quick Answer
The nature of a volcanic eruption is determined by the temperature, viscosity and the amount of dissolved gases in the magma, according to San Diego State University. These factors determine whether an eruption is calm and nonviolent or explosive.
Continue ReadingFull Answer
Viscosity, or resistance to flow, is one of the most important aspects of magma composition, as the University of Rhode Island states. Magmas with low viscosity, such as basaltic magmas, are more like fluids and allow gases to escape with relative ease. On the other hand, thick high-viscosity magmas allow gas pressure to build up under the surface, which can result in violent explosions.
Learn more about VolcanoesSources:
Related Questions
-
Q:
What is a volcanic eruption?
A: A volcanic eruption is the expulsion of magma and gas from the Earth's interior. Most current volcanic eruptions are the result of one of three eruption me... Full Answer >Filed Under: -
Q:
What is a phreatic eruption?
A: A phreatic eruption is a steam-based volcanic reaction caused by the heating of water by magma. The pressure caused by underground steam forces it to escap... Full Answer >Filed Under: -
Q:
What happens before a volcanic eruption?
A: According to the United States Geological Survey, before a volcanic eruption, magma must travel upwards through rock. The travelling magma produces these p... Full Answer >Filed Under: -
Q:
What do you call hot lava cooling?
A: When magma rises up to the surface of the Earth from a volcanic eruption or through vents, it turns into lava. When this lava stops flowing and cools, it h... Full Answer >Filed Under:
You May Also Like
-
Q:
What are the names of volcanic mountains?
-
Q:
What are the factors affecting catalase activity?
-
Q:
What are some factors that influence magazine advertising costs?
-
Q:
How can you take better nature pictures?
-
Q:
What are some abiotic factors in the Sahara Desert?
-
Q:
What are some factors that influence the value of a gram of gold?
