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Extrusive igneous rocks and some sedimentary rocks are formed above ground.
Skylar Hagenes
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What type of rock is formed when magma undergoes crystallization above ground?
Extrusive igneous rock is formed from the crystallization of magma (lava) above ground.
Can igneous rock be formed above or below ground?
It is formed both- above ground (as extrusive igneous rocks) or below ground (as intrusive igneous rocks).
Which type of rock is formed above the ground by lava?
The general type is extrusive igneous rock.
What kinds of rock are formed by volcanoes?
Extrusive igneous rocks are formed from the solidification of magma above ground.
How do geologists classify igneous rock?
Geologists classify rocks by where they are formed; above ground or under ground
What is the theory of igneous rock?
Igneous rock is formed from solidification of magma either above or below ground.
What is formed when rock above a cave collapses it forms a?
When rock above a cave collapses, it forms a sinkhole. Sinkholes are depressions in the ground that are often caused by the erosion of underground caves or channels.
How is ignius rock formed?
it is formed either underground or above ground. it is formed underground when hot magma is trapped and cools slowly, when it has cooled down it has then become igneous rock but on top of the ground the lava cools much quicker then what it does below the ground
What is the difference between gabbro and basalt?
Gabbro is an intrusive rock, which means it formed underground. Basalt is an extrusive rock, which means it formed above ground .
Is all igneous rock formed by volcanoes?
No. Igneous rock is simply the solid substance left when magma or lava hardens, above ground or below ground.
How can you tell the difference between an igneous rock that formed above ground and one that formed below?
Usually, the determining factor is the size of the mineral crystals in the rock. Igneous rocks that have solidified above ground cool quickly and have less time for larger crystals to grow.
Igneous rock forms from?
Plutonic rock is formed from magma in the Earth's crust. Volcanic rocks form from lava above ground.
