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Extrusive igneous rocks. The type of extrusive igneous rock is determined by the composition of the lava.
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What kind of mineral does magma form when it cools?
When magma cools, it forms igneous rock.
What kind of metamorphism occurs when intrusive magma forms a sill between two sedimentary rock strata?
contact metamorphism
What type of rocks form from lava after a volcanic eruption?
Igneous rocks are formed from the cooling and solidifying of magma. The resulting rock can be instrusive (magma cooling within the crust) and extrusive (lava cooling on the surface). The most common kind of rocks are Granite (intrusive) and Basalt (extrusive).
What kind of rocks originate from liquid phase?
Igneous rock froms from magna
What is the kind of igneous rock that forms below earths surface called?
Intrusive igneous rock (plutonic rock).
What kind of mineral does magma form when it cools?
When magma cools, it forms igneous rock.
What kind of rock forms from magma that cools below the earth's surface?
Intrusive Igneous Rock.
What kind of rock forms when magna cools and solidefies in the Earth?
It depends on the composition of the magma, how quickly it cools and crystalises, the temperature and pressure of the original melt.
What type rock forms when magma cools and hardens?
Igneous Rock is formed when magma cools and hardens. It depends on whether it cools above ground or under ground for the size of the mineral crystals forming inside it.
Where did gabbro come from?
Gabbro forms from a magma that is rich in iron and magnesium, and poor in silica (quartz). The magma cools and crystallizes deep below the earth's surface. Gabbro is from the same kind of magma as basalt and diabase, but because it cools more slowly, it develops larger crystals.
When lava flows and cools on Earth's surface it forms what kind of rock?
Igneous rock is formed through the cooling and solidificatio of magma or lava.
When magma cools rapidly what kind of textures does rock have?
Aphanitic, or fine-grained.
What kind of rock is formed when magma or lava cools and hardens?
Igneous rock is formed.
What kind of rocks are formed when the magma cools beneath earth's surface?
Intrusive igneous rock.
What kind of rock forms from magma?
igneous rock
What kind of rocks are formed when the magma cools on the earth's surface?
Extrusive igneous rocks such as basalt or rhyolite.
What kind of rock does magma form when it hardens?
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.
