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Learn about the three basic types of rocks: igneous, sedimentary, and metamorphic. Find out how they are formed, where they are found, and what minerals they contain.
Rocks form the Earth's outer solid layer, the crust, and most of its interior, except for the liquid outer core and pockets of magma in the asthenosphere. The study of rocks involves multiple subdisciplines of geology, including petrology and mineralogy.
Learn about the types, properties and uses of rocks on Earth and other planets. Explore photos, descriptions and facts of igneous, metamorphic and sedimentary rocks, as well as fossils, minerals and rock art.
Hace 1 día · Earth, third planet from the Sun and the fifth largest planet in the solar system in terms of size and mass. Its single most outstanding feature is that its near-surface environments are the only places in the universe known to harbour life.
6 de may. de 2024 · Rock, in geology, naturally occurring and coherent aggregate of one or more minerals. Such aggregates constitute the basic unit of which the solid Earth is composed and typically form recognizable and mappable volumes. The three major classes of rock are igneous, sedimentary, and metamorphic rock.
13 de dic. de 2023 · Learn how rocks are formed and changed by physical and chemical processes in Earth's crust. Explore the three main types of rocks: sedimentary, igneous, and metamorphic, and their examples and features.
3 de may. de 2024 · sedimentary rock, rock formed at or near Earth’s surface by the accumulation and lithification of sediment (detrital rock) or by the precipitation from solution at normal surface temperatures (chemical rock).
