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intrusive igneous
An igneous rock is formed when magma rises through the earth's crust and cools.
An igneous rock is formed when magma rises through the earth's crust and cools.
That depends on where it cools. Igneous rock forms from magma or lava (there's a difference!) cools and hardens. Extrusive igneous rock forms above the earth's crust, like when the lava from a volcanic eruption hardens. Intrusive igneous rock cools inside the earth when conditions change and the area around the magma cools allowing the magma to cool.
If the magma cools on the surface of the crust, it is called extrusive igneous rock, such as pumice, basalt or rhyolite. If the magma cools inside the crust, it is called intrusive igneous rock, such as granite.
An igneous intrusive rock
A fine grained igneous rock forms from Lava that escapes from the earth crust to the surface and cools and solidifies rapidly.
Extrusive igneous rock, like basalt and rhyolite.
igneous rocks that cools deep inside the earth are well settled while those at surface are not as lava that spreads on surface gets solidified quickly and dont get time to settle
It is dated from the time it solidifies as rock.
Intrusive (Plutonic) Igneous Rock.
Intrusive Igneous Rock.