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Unconformity , An unconformity is a widespread surface separating rocks above and below, which represents a gap in the rock record. The gap, or interval of geologic… Rock , rock1 / räk/ • n. 1. the solid mineral material forming part of the surface of the earth and other similar planets, exposed on the surface or underly… Iron Ores , Rocks
Rocks are composed of minerals, which are natural inorganic (nonliving) substances with specific chemical compositions and structures. A rock m… Sea Of Azov , Sea of Azov
Sea of Azov, Gr. Maiotis, Lat. Palus Maeotis, ancient Rus. Surozhskoye, northern arm of the Black Sea, c.14,000 sq mi (36,300 sq km), sha… sea pen , sea pen See ANTHOZOA; and PENNATULACEA. Igneous Rocks , Igneous rocks are formed by the cooling and hardening of molten magma. The word igneous comes from the Latin word igneus, meaning fire, and there are…
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