0
Want this question answered?
Be notified when an answer is posted
Add your answer:
Earn +20 pts
Are hawaiian volcanoes low or high in viscosity?
A lava dome indicates lava with a very high viscosity. A low viscosity lava would flows away rather than build into a dome.
What causes the most violent eruptions in volcanoes?
high viscosity in magma composition.
What is the relationship in the silicon content and the viscosity of magma?
There is an inverse relationship between magma viscosity and silicon content. Lavas erupting from basaltic volcanoes (like Hawaii) have a much lower viscosity and are much hotter than those erupted by volcanoes whose magmas are rich in silicon. There may be up to 8 orders of magnitude viscosity difference between basaltic magmas (SiO2 contents or about 45 %) and rhyolitic magmas (SiO2 > 70 %).
Volcanoes typically have the most explosive eruptions?
Large explosive eruptions are generally characteristic of stratovolcanoes.
How would you describe lava with a high viscosity?
The highest viscosity lava is rhyolite. Rhyolitic lava tends to form dome-shaped volcanoes and tends to cause explosive eruptions.
Do shield volcanoes have high viscosity?
No. Shield volcanoes are fed by low-viscosity basaltic magma.
Are hawaiian volcanoes low or high in viscosity?
A lava dome indicates lava with a very high viscosity. A low viscosity lava would flows away rather than build into a dome.
Why do composite cone volcanoes with very high viscosity?
um i don't no are you dumb
What causes the most violent eruptions in volcanoes?
high viscosity in magma composition.
What kinds of lava do volcanoes with lower viscosity magma produce?
They produce basaltic lava.
What types of valcanoes would be the most explosive?
Volcanoes with more viscosity are more explosive.
What is the lava of cinder cone volcanoes?
A cinder cone has basaltic lava, which has a fairly low viscosity.
Do hot spot volcanoes tend to erupt more explosively than other volcanoes?
The source is not as important as the gas content and viscosity. For example, Kilauea in Hawaii doesn't erupt very explosively; it is just a fire fountain. The more explosive volcanoes are those with a blocked magma chamber that builds pressure under a solid surface. Hotspot volcanoes tend to be less explosive because most are on the seafloor.
What is the relationship in the silicon content and the viscosity of magma?
There is an inverse relationship between magma viscosity and silicon content. Lavas erupting from basaltic volcanoes (like Hawaii) have a much lower viscosity and are much hotter than those erupted by volcanoes whose magmas are rich in silicon. There may be up to 8 orders of magnitude viscosity difference between basaltic magmas (SiO2 contents or about 45 %) and rhyolitic magmas (SiO2 > 70 %).
Does hot spot volcanoes tend to erupt more explosively than other volcanoes?
No they do not erupt more explosively. It depends on its gas and its viscosity. Kilauea in Hawaii does not erupt more explosive.
Volcanoes typically have the most explosive eruptions?
Large explosive eruptions are generally characteristic of stratovolcanoes.
Are volcanoes important for making mountains?
Yes volcanoes are very important for making mountains
