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How much lava comes out of a volcanoes?
The amount of lava that comes out of a volcano can vary greatly depending on the eruption type and size of the volcano. In general, volcanoes can produce anywhere from a few cubic meters to millions of cubic meters of lava during an eruption. Some eruptions, such as those from shield volcanoes, can produce lava flows that extend for tens of kilometers.
Do cinder cone volcanoes have AA lava or pahoehoe lava?
Pahoehoe and a'a refer to different texutres of lava flows. Although cindercones can produce lava flows, their main mode of eruption is called "fire fountaining" which tends to produce chunks of lava called scoria, rather than pahoehoe or a'a.
What type of lava does a quiet eruption produce?
A quiet eruption typically produces basaltic lava. This type of lava is low in viscosity and flows easily, resulting in gentle, slow-moving lava flows. It often forms shield volcanoes with broad and gently sloping sides.
What is the lava flow for a composite volcano?
Composite volcanoes are highly variable in how and what they erupt. In some cases composite volcanoes produce extremely viscous blocky lava flows of andesite or rhyolite. In other cases they may produce pahoehoe or a'a flows of basaltic lava. In many cases eruptions are explosive, producing clouds of ash and pyroclastic flows instead of lava flows.
Why are shield volcanoes relatively safe?
Eruptions at shield volcanoes are almost never explosive and do not produce pyroclastic flows, mudflows, or large ash clouds. Instead they generally produce slow-moving lava flows that are generally easy to escape.
How much lava comes out of a volcanoes?
The amount of lava that comes out of a volcano can vary greatly depending on the eruption type and size of the volcano. In general, volcanoes can produce anywhere from a few cubic meters to millions of cubic meters of lava during an eruption. Some eruptions, such as those from shield volcanoes, can produce lava flows that extend for tens of kilometers.
What does lava have to do with volcanoes?
Lava is molten rock that flows out of a volcano.
What is the name of mountain from which the lava flows out?
A volcano is a mountain from which lava flows out during an eruption.
Do cinder cone volcanoes have AA lava or pahoehoe lava?
Pahoehoe and a'a refer to different texutres of lava flows. Although cindercones can produce lava flows, their main mode of eruption is called "fire fountaining" which tends to produce chunks of lava called scoria, rather than pahoehoe or a'a.
Are the hawaiian Islands a region or extensive pyroclastic flow?
They are a region. This islands themselves were formed primarily by lava flows. The volcanoes there rarely produce pyroclastic flows.
What type of lava does a quiet eruption produce?
A quiet eruption typically produces basaltic lava. This type of lava is low in viscosity and flows easily, resulting in gentle, slow-moving lava flows. It often forms shield volcanoes with broad and gently sloping sides.
What is the lava flow for a composite volcano?
Composite volcanoes are highly variable in how and what they erupt. In some cases composite volcanoes produce extremely viscous blocky lava flows of andesite or rhyolite. In other cases they may produce pahoehoe or a'a flows of basaltic lava. In many cases eruptions are explosive, producing clouds of ash and pyroclastic flows instead of lava flows.
Why is it that pahoehoe and AA lava are more frequent in shield volcanoes than in composite volcanoes?
Shield volcanoes have low viscosity basaltic lava, which typically creates pahoehoe and AA lava flows due to their ability to flow easily. Composite volcanoes have higher viscosity lava, such as andesitic or dacitic, which tend to form thicker and blockier lava flows rather than pahoehoe and AA flows.
Why are shield volcanoes relatively safe?
Eruptions at shield volcanoes are almost never explosive and do not produce pyroclastic flows, mudflows, or large ash clouds. Instead they generally produce slow-moving lava flows that are generally easy to escape.
What kinds of lava do volcanoes with lower viscosity magma produce?
They produce basaltic lava.
What planet is covered with lava flows and has several volcanoes?
Venus.
Do volcanoes produce large amounts of ash when they erupt?
Volcanoes with high levels of water in their lava produce ash, those with dry lava produce no ash.
