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Why would lava flow faster through a lava tube than it would above ground?
The solidified lava forming the walls of the lava tube will act to insulate the molten lava. It will therefore cool more slowly than lava at the surface and so will have a lower viscosity (it will be more runny) and so will flow faster than lava at the surface.
What speed did the lava go on Mount Etna?
Lava flows on Mount Etna can travel at varying speeds, typically ranging from 1 to 10 km/h (0.6 to 6.2 mph). However, during more explosive eruptions, lava fountains can propel material at much faster speeds.
What types of lava come from the San Cristobal volcano?
The San Cristobal volcano in Nicaragua primarily produces basaltic lava, which is low in silica content and flows easily. This type of lava typically results in effusive eruptions with lava flows that can travel long distances from the volcano. The lava from the San Cristobal volcano tends to be relatively fluid and forms shield volcanoes.
Is volcanic glass made from slower or faster cooling lava?
Volcanic glass, such as obsidian, is formed from lava that cools rapidly. This rapid cooling prevents the formation of crystalline structures, resulting in a glassy texture. In contrast, slower cooling allows crystals to form, leading to different rock types like basalt or granite. Thus, volcanic glass is associated with faster cooling lava.
What are the three types of lava flows associated with basaltic lava?
basaltic lava can form a'a, pahoehoe, or pillow lava.
How many types of lava flow?
2. Thick or runny lava. Thick flows slowly, runny flows faster.
What is faster lava or volcanic dust?
Lava is known to have flowed at speeds of more than 100 miles per hour, which much faster than volcanic dust could travel.
Does basaltic or rhyolitic lava flow faster?
Basaltic lava flows much faster than ryholitic lava.
What are two types of hawaiian lava?
ʻAʻā lava and Pāhoehoe are the two types of Hawaiian lava.
Does basalt or rhyolite flow faster?
Basaltic lava flows much faster than ryholitic lava.
What are the three types of lava?
Pahoehoe lava, Aa lava, and Blocky lava
Is magma faster than lava?
Lava is magma, that has reached the surface.
Between mafic lava and felsic lava which flowsfaster?
Mafic lava is hotter than felsic lava and therefore flows faster.
Why would lava flow faster through a lava tube than it would above ground?
The solidified lava forming the walls of the lava tube will act to insulate the molten lava. It will therefore cool more slowly than lava at the surface and so will have a lower viscosity (it will be more runny) and so will flow faster than lava at the surface.
Which one hardens faster runny or thick lava?
Thick, highly viscous lava.
How many kinds of lava exist?
there are 6 types of lava
What speed did the lava go on Mount Etna?
Lava flows on Mount Etna can travel at varying speeds, typically ranging from 1 to 10 km/h (0.6 to 6.2 mph). However, during more explosive eruptions, lava fountains can propel material at much faster speeds.
