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What rocks come from lava flow?
Lava flows cool to form extrusive igneous rock. Most lava flows consist of basaltic lava, cooling to form a dark rock called basalt. Some, however, may consist of andesite or, rarely, rhyolite and similar lavas.
What is Magma that flows onto Earth's surfaces called?
Magma that flows onto Earth's surface is called lava.
What type of lava flows the slowest?
Viscous lava, such as andesitic or rhyolitic lava, flows the slowest due to its high silica content. This type of lava tends to be thicker and more resistant to flow compared to basaltic lava, which is more fluid and flows more quickly.
Why are volcanoes so deadly?
Volcanoes can be deadly due to their ability to release fast-moving pyroclastic flows, hot lava flows, ash clouds, and toxic gases that can cause burns, suffocation, and asphyxiation. In addition, volcanic eruptions can trigger secondary hazards like mudslides, tsunamis, and lahars, which can further increase the danger to people living nearby.
Magna that flows onto earths surface is called?
Magma that flows onto Earth's surface is called lava.
Why are lava flows not deadly?
Lava flows are generally slow moving, giving people time to evacuate. As a result, they do not kill as often as other volcanic hazards such as pyroclastic flows.
What rocks come from lava flow?
Lava flows cool to form extrusive igneous rock. Most lava flows consist of basaltic lava, cooling to form a dark rock called basalt. Some, however, may consist of andesite or, rarely, rhyolite and similar lavas.
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 are lava flows on a volcano?
A lava flow is where lava flows down the side of a volcano.
Opening where the lava flows?
the opening where the lava flows is call a vent
What is Magma that flows onto Earth's surfaces called?
Magma that flows onto Earth's surface is called lava.
Are all lava flows the same?
No. Lava flows vary in composition. Most lava flows consist of basaltic lava, which can flow as smooth phoehoe or form jagged and broken a'a. Other lava flows are more viscous and will have blocky surfaces and tend to be short and thick.
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.
What can stop lava flows?
Lava flows can be stopped or deflected by ridges, valleys and depressions in the ground.
What happens when lava flows reach the sea?
When lava flows reach the sea, the lava rapidy cools to form an igneous rock.
Are lava flows harmful?
Yes. Lava flows can be extremely destructive. Since most lava flows move slowly, though, relatively few people have been killed by them.
Can a stratovolcano erupt blocky lava?
Yes. Stratovolcanoes can erupt blocky lava flows, basaltic lava flows, or may erupt explosively.
