Uralian orogenic belt

Uralian orogenic belt

The Uralian orogenic belt is usually thought of as the boundary between Europe and Asia. It extends from the Aral Sea to Novaya Zemlya, and it includes the Ural Mountains, the Pay-Khoy Ridge, and the Mughalzhar Hills of northwest Kazakhstan. Its total length is about 3,500 kilometres (2,175 miles), of which the Ural Mountains are about 2,500 kilometres (1,550 miles).


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  • Uralian orogenic belt — ▪ geological formation       a 3,500 kilometre (2,175 mile ) long elongate mountain system that extends from the Aral Sea to the islands of Novaya Zemlya. It is 500 km wide in the south but only 100–150 km wide in the north. The belt formed as a… …   Universalium

  • Europe — /yoor euhp, yerr / for 1; /yoo roh pee, yeuh / for 2, n. 1. a continent in the W part of the landmass lying between the Atlantic and Pacific oceans, separated from Asia by the Ural Mountains on the E and the Caucasus Mountains and the Black and… …   Universalium

  • Permian Period — Interval of geologic time, 290–248 million years ago. The last of the six periods of the Paleozoic Era, it follows the Carboniferous Period. During the Permian, the continents joined to form a single supercontinent, Pangea. Hot, dry conditions… …   Universalium

  • Ural Mountains — a mountain range in the W Russian Federation, extending N and S from the Arctic Ocean to near the Caspian Sea, forming a natural boundary between Europe and Asia. Highest peak, Mt. Narodnaya, 6214 ft. (1894 m). Also called Urals. * * * Mountain… …   Universalium

  • Kungurian Stage — ▪ geology       last of the four stages of the Lower Permian (Cisuralian) Series, encompassing all rocks deposited during the Kungurian Age (275.6 million to 270.6 million years ago) of the Permian Period. Rock exposures from this stage are well… …   Universalium

  • Artinskian Stage — ▪ geology       third of the four stages of the Lower Permian (Cisuralian) Series, representing those rocks deposited during Artinskian time (284.4 million to 275.6 million years ago) in the Permian Period. Rocks of Artinskian time were deposited …   Universalium

  • Silurian Period — Interval of geologic time, 443–417 million years ago. The third period of the Paleozoic Era, the Silurian follows the Ordovician Period and precedes the Devonian. It marks the first appearance of land plants and jawed fishes. The continents were… …   Universalium

  • Geologic time scale — This clock representation shows some of the major units of geological time and definitive events of Earth history. The Hadean eon represents the time before fossil record of life on Earth; its upper boundary is now regarded as 4.0 Ga.[1] Other… …   Wikipedia

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