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| three main rock types; formed through the cooling and solidification of magma or lava. |
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| mixture of molten rock, volatiles and solids that is found beneath the surface of the Earth, and is expected to exist on other terrestrial planets. |
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| refers both to molten rock expelled by a volcano during an eruption and the resulting rock after solidification and cooling. This molten rock is formed in the interior of some planets, including Earth, and some of their satellites. |
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| one of the three main rock types, the others being sedimentary and metamorphic rock. |
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| refers to the mode of igneous volcanic rock formation in which hot magma from inside the Earth flows out (extrudes) onto the surface as lava or explodes violently into the atmosphere to fall back as pyroclastics or tuff. |
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| naturally occurring material that is broken down by processes of weathering and erosion, and is subsequently transported by the action of fluids such as wind, water, or ice, and/or by the force of gravity acting on the particle itself. |
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| types of rock that are formed by the deposition of material at the Earth's surface and within bodies of water. |
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| omposed of fragments, or clasts, of pre-existing rock. |
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| transformation of an existing rock type. |
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| common to rocks affected by regional metamorphic compression typical of orogenic belts |
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| undamental concept in geology that describes the dynamic transitions through geologic time among the three main rock types: sedimentary, metamorphic, and igneous |
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