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Is ultramafic magma high in viscosity?
No. Ultramafic magma would have a low viscosity.
Which conditions make for a violent volcanic eruption?
Magma with low viscosity
Does Krakatoa have felsic magma or mafic?
felsic
What is Krakatoa made of?
Krakatoa is made up of 3 different rocks. magma, mud stone and limestone. Krakatoa is a massive volcano
How did mt Krakatoa erupt?
Krakatoa erupted because of A buildup of magma under the volcano and a letin of seawater
Is ultramafic magma high in viscosity?
No. Ultramafic magma would have a low viscosity.
What 3 factors determine magma viscosity?
The three elements that determine viscosity in magma are:TemperatureSilicaOxides (gases)Viscosity changes the way in which magma will flow. Magma with low viscosity will flow much more easily than high viscosity magma.
Which conditions make for a violent volcanic eruption?
Magma with low viscosity
What conditions make for a violent volcanic eruption?
Magma with high silica content
Does Krakatoa make pillow lava?
No. Pillow lava is basaltic, low-viscosity lava. Krakatoa is a stratovolcano with a style of ereuption more characteristic of high-viscosity andesitic lava.
Does Krakatoa have felsic magma or mafic?
felsic
What is Krakatoa made of?
Krakatoa is made up of 3 different rocks. magma, mud stone and limestone. Krakatoa is a massive volcano
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.
What is the volume of Krakatoa's magma?
the volume is 1800 mph
How did mt Krakatoa erupt?
Krakatoa erupted because of A buildup of magma under the volcano and a letin of seawater
What does viscosity have to do with eruptions?
The viscosity of magma or lava will determine whether or not the eruption is explosive or quiet. Higher viscosity magma can result in explosive eruptions. Lower viscosity magmas tend to flow more freely.
Why do eruptions in Hawaii differ from Mt. St. Helens eruption?
The magma of the Hawaiian volcanoes has a basaltic composition, which means it has a low viscosity (it flows easily) and so can erupt easily without needing too much force behind it. This low viscosity magma cannot hold very much gas and so erupts effusively By contrast, the magma involved in the 1980 eruption of Mount St Helens had a dacitic composition, which has an extremely high viscosity. The high viscosity allows large mounts of gas to be stored in the magma under pressure. When the magma was exposed to lower pressure near the surface, the gas was released and expanded explosively, blasting the magma into ash and pumice.
