explain how igneous rocks are formed
Answers
Extrusive igneous rocks, also known as volcanic rocks, are formed at the crust's surface as a result of the partial melting of rocks within the mantle and crust. Extrusive igneous rocks cool and solidify quicker than intrusive igneous rocks. They are formed by the cooling of molten magma on the earth's surface.
Answer:
There are no fossils in igneous rocks, which are solid, hard rocks. They are connected to the eruptions of volcanoes. They also go by the name Primary rocks since they are created when molten lava solidifies.
Explanation:
When magma (molten rock), either at volcanoes on the surface of the Earth or when the melted rock is still inside the crust, cools and crystallises, igneous rocks are created. All magma forms underground because of the intense heat in the upper mantle or lower crust. Igneous rocks are created when hot, molten rock crystallises and solidifies. The melt begins its trip deep beneath the Earth and rises to the surface near active plate boundaries or hot areas.
The process of molten magma solidifying results in the development of an igneous rock type.
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