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( Ural Mountains)
The Ural Mountains (Russian ???´?????? ??´??, Uralskiye gory) (also known as the Urals, the Riphean Mountains in Greco-Roman antiquity, and known as the Stone Belt) are a mountain range that runs roughly north and south through western Russia. They are usually considered as the natural boundary between Europe and Asia. The Urals extend 2,500&_160;km from the Kazakh steppes along the northern border of Kazakhstan to the coast of the Arctic ocean. Vaygach Island and the island of Novaya Zemlya form a further continuation of the chain. Geographically this range marks the northern part of the border between Asian and European sections of the Eurasian continent. Its highest peak is Mount Narodnaya (Poznurr, 1,895 m). Erosion has exposed considerable mineral wealth in the Urals, including gems such as topaz and beryl.The Virgin Komi Forests in the northern Urals are recognized as a World Heritage site. 68% of the Ural Mountains are located in Russia, whilst the remaining 32% are located in Kazakhstan.[1][2] Geographers have divided the Urals into five regions South, Middle, North, Subarctic and Arctic Urals. The tree line drops from 1,400 metres to sea level as progressing north. Sections of the south and middle regions are completely forested. The Urals were named after the Uralian tribe that was once native to the northern region of Asia. The Uralians were hunter-gatherers; however the lack of plentiful resources in the area forced them to relocate, spreading throughout the Asian region. According to another explanation, the word Ural is of Turkic origin and means a stone belt. [3] The Urals are among the world's oldest extant mountain ranges. For its age of 250 to 300 million years, the elevation of the mountains is unusually high. They were formed during the late Carboniferous period, when western Siberia collided with eastern Baltica (connected to Laurentia (North America) to form the minor supercontinent of Euramerica) and Kazakhstania to form the supercontinent of Laurasia. Later Laurasia and Gondwana collided to form the supercontinent of Pangaea, which subsequently broke itself apart into the seven continents known today. Europe and Siberia have remained joined together ever since.
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