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Lava is a hot liquid from the inside of the earth and ash is a lava powder, which is very hot.
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What are ash falls?
An ash fall is a rain of airborne ash resulting from a volcanic eruption.
What are the precautionary measures after volcanic eruption?
People in a volcano zone need to be removed until the ash and lava have finished coming out of the volcano. Homes and businesses need to be evacuated and cars are moved out of the way. The volcano will need to be done erupting before people are allowed back into the area.
Why is volcanic ash such a good time marker?
because it has lots of minerals from the rock in it.
What Stages that lead up to volcanic eruption?
Fire,Ash,smoke clouds, and earthquakes
Do earthquakes have a vent?
No. Volcanoes have vents. Vents are holes though which ash, gas, and lava can erupt.
These things come out of a volcano after an eruption?
lava,ash,tephra,volcanic bombs
Does volcanic ash create basalt?
No. While volcanic ash can have a basaltic composition, it usually does not. Basalt forms from lava. Volcanic ash forms tuff.
What is volcanic material thrown out during erputions?
volcanic ash, volcano bombs, and lava
What us the surface of volcanic mountains made of?
Solidified lava, sulphur, volcanic ash.
What natural phenomenon occurs when magma breaks through the earths crust?
It turns into lava and/or ash in what is called a volcanic eruption.
Why is volcanic ash magnetic?
Volcanic ash is magnetic because the ash has iron in in the objects the lava/magma burns. Or the ash already has iron from the mantle of the Earth burning into the magma of the core.
What are rocks produced from lava and ash in volcanoes called?
volcanic rock
What build up a volcanic mountain?
Cinder, cooled lava, and ash
What are formed when the lava and ash escapes at the surface?
Volcanic landforms and features.
What is the difference between acid lava cones and ash and cinder cones?
Acid lava cones are smaller and much steeper than ash/cinder cones. Acid lava cones are almost convex in shape and are formed due to thick lava that does not flow freely and cools before reaching very far. This gives in the conical 'dumpy' shape. While ash and cinder cones are more symmetrical and concave in shape. They are formed due to volcanic lava or volcanic bombs (of solidified lava) that was shot up in the air, cool and hardened and broke up into tiny pieces (of ash or cinders) before coming back down to the earth's surface.
A mountain that forms when layers of lava and ash erupt and builds up is called a?
A mountain formed by the build up of lava and ash is a composite volcanic cone.
Is a lahar lava?
No. A lahar is a mudflow formed by a mixture of water and volcanic ash.
