What happens when magma cools and crystallizes?

If magma makes it to the surface it will erupt and later crystallize to form an extrusive or volcanic rock. If it crystallizes before it reaches the surface it will form an igneous rock at depth called a plutonic or intrusive igneous rock.Click to see full answer. Consequently, what happens when magma cools?As magma cools…

If magma makes it to the surface it will erupt and later crystallize to form an extrusive or volcanic rock. If it crystallizes before it reaches the surface it will form an igneous rock at depth called a plutonic or intrusive igneous rock.Click to see full answer. Consequently, what happens when magma cools?As magma cools the elements within the magma combine and crystalize into minerals that form an igneous rock. Magma cools either below the surface or at the surface (magma that reaches the surface is called lava). As magma cools igneous rock is formed. what is it called when lava cools and hardens? Sometimes magma flows upward and is forced out onto the earth’s surface during a volcanic eruption. Magma that reaches the surface of the earth is called lava. When it cools and hardens, it too forms igneous rock. Igneous rock that is formed on the earth’s surface is described as extrusive. Also to know is, what happens when lava cools too quickly for crystals to form? When molten rock, or lava, freezes, it forms crystals. If the rock freezes quickly, the crystals do not have time to grow very big. Lava that runs out of volcanoes cools down quickly. It forms rocks like basalt.What factors affect the size of the crystals that form as magma cools?It can be used to illustrate how the rate at which molten rock cools affects the size of the crystals that form within the solid rock – If the magma cools quickly, the crystals do not have much time to form, so they are very small. If the magma cools slowly, then the crystals have enough time to grow and become large.

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