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The Ural Mountains ( ; rus, Ура́льские го́ры, r=Uralskiye gory, p=ʊˈralʲskʲɪjə ˈɡorɨ; ba, Урал тауҙары) or simply the Urals, are a
mountain range A mountain range or hill range is a series of mountains or hills arranged in a line and connected by high ground. A mountain system or mountain belt is a group of mountain ranges with similarity in form, structure, and alignment that have ari ...
that runs approximately from north to south through western Russia, from the coast of the
Arctic Ocean The Arctic Ocean is the smallest and shallowest of the world's five major oceans. It spans an area of approximately and is known as the coldest of all the oceans. The International Hydrographic Organization (IHO) recognizes it as an ocean, a ...
to the river Ural and northwestern
Kazakhstan Kazakhstan, officially the Republic of Kazakhstan, is a transcontinental country located mainly in Central Asia and partly in Eastern Europe. It borders Russia to the north and west, China to the east, Kyrgyzstan to the southeast, Uzbeki ...
.Ural Mountains
Encyclopædia Britannica on-line
The mountain range forms part of the conventional boundary between the regions of
Europe Europe is a large peninsula conventionally considered a continent in its own right because of its great physical size and the weight of its history and traditions. Europe is also considered a Continent#Subcontinents, subcontinent of Eurasia ...
and
Asia Asia (, ) is one of the world's most notable geographical regions, which is either considered a continent in its own right or a subcontinent of Eurasia, which shares the continental landmass of Afro-Eurasia with Africa. Asia covers an are ...
. Vaygach Island and the islands of Novaya Zemlya form a further continuation of the chain to the north into the Arctic Ocean. The Ural Mountains are one of the richest mineral regions in the world, containing more than 1,000 varieties of valuable minerals. The mountains lie within the Ural geographical region and significantly overlap with the Ural Federal District and with the Ural economic region. They have rich resources, including metal ores, coal, and precious and semi-precious stones. Since the 18th century the mountains have contributed significantly to the mineral sector of the Russian economy. The region is one of the largest producers of metallurgy and heavy industry production in the country.


Etymology

As attested by Sigismund von Herberstein, in the 16th century Russians called the Ural range by a variety of names derived from the Russian words for rock (stone) and belt. The modern Russian name for the Urals (, ), first appearing in the 16th–17th century during the Russian conquest of Siberia, was initially applied to its southern parts and gained currency as the name of the entire range during the 18th century. It might have been borrowed from either Turkic "stone belt" ( Bashkir, where the same name is used for the range), or Ob-Ugric. From the 13th century, in
Bashkortostan The Republic of Bashkortostan or Bashkortostan ( ba, Башҡортостан Республикаһы, Bashqortostan Respublikahy; russian: Республика Башкортостан, Respublika Bashkortostan),; russian: Респу́блик� ...
there has been a legend about a hero named Ural who sacrificed his life for the sake of his people who then poured a stone pile over his grave, which later turned into the Ural Mountains. Possibilities include Bashkir ''үр'' "elevation; upland" and Mansi ''ур ала'' "mountain peak, top of the mountain", V.N. Tatischev believes that this oronym is set to "belt" and associates it with the Turkic verb oralu- "gird". I.G. Dobrodomov suggests a transition from Aral to Ural explained on the basis of ancient Bulgar- Chuvash dialects. Geographer E.V. Hawks believes that the name goes back to the Bashkir folklore Ural-Batyr. The Evenk geographical term ''era'' "mountain" has also been theorized. (cf also Ewenkī ürǝ-l (pl.) "mountains") Finno-Ugrist scholars consider Ural deriving from the Ostyak word ''urr'' meaning "chain of mountains". Turkologists, on the other hand, have achieved majority support for their assertion that 'ural' in Tatar means a belt, and recall that an earlier name for the range was 'stone belt'.


History

As Middle-Eastern merchants traded with the Bashkirs and other people living on the western slopes of the Ural as far north as Great Perm, since at least the 10th century medieval mideastern geographers had been aware of the existence of the mountain range in its entirety, stretching as far as the Arctic Ocean in the north. The first Russian mention of the mountains to the east of the East European Plain is provided by the Primary Chronicle, where it describes the Novgorodian expedition to the upper reaches of the Pechora in 1096. During the next few centuries Novgorodians engaged in fur trading with the local population and collected tribute from Yugra and Great Perm, slowly expanding southwards. The rivers
Chusovaya The Chusovaya (russian: Чусова́я) is a river flowing in Perm Krai, Sverdlovsk Oblast and Chelyabinsk Oblast of Russia. A tributary of the Kama, which in turn is a tributary of the Volga, it discharges into the Chusovskoy Cove of the Kam ...
and Belaya were first mentioned in the chronicles of 1396 and 1468, respectively. In 1430, the town of Solikamsk (Kama Salt) was founded on the Kama at the foothills of the Ural, where salt was produced in open pans. Ivan III of Moscow captured Perm, Pechora and Yugra from the declining Novgorod Republic in 1472. With the excursions of 1483 and 1499–1500 across the Ural, Moscow managed to subjugate Yugra completely. Nevertheless, around that time in the early 16th century, Polish geographer,
Maciej of Miechów Maciej Miechowita (also known as ''Maciej z Miechowa, Maciej of Miechów, Maciej Karpiga, Matthias de Miechow''; 1457 – 8 September 1523) was a Polish renaissance scholar, professor of Jagiellonian University, historian, chronicler, geogra ...
, in his influential ''Tractatus de duabus Sarmatiis'' (1517) argued that there were no mountains in Eastern Europe at all, challenging the point of view of some authors of Classical antiquity, popular during the
Renaissance The Renaissance ( , ) , from , with the same meanings. is a period in European history marking the transition from the Middle Ages to modernity and covering the 15th and 16th centuries, characterized by an effort to revive and surpass ide ...
. Only after Sigismund von Herberstein in his
Notes on Muscovite Affairs ''Notes on Muscovite Affairs'' (''Rerum Moscoviticarum Commentarii'') (1549) was a Latin book by Baron Sigismund von Herberstein on the geography, history and customs of the Grand Duchy of Muscovy. The book was the main early source of knowledge ...
(1549) had reported, following Russian sources, that there are mountains behind the Pechora and identified them with the
Riphean Mountains In Greco-Roman geography, the Riphean Mountains (also Riphaean; , or ; '' grc, Ῥιπαῖα ὄρη''; Latin: ''Rhipaei'' or ''Riphaei montes'') were a supposed mountain range located in the far north of Eurasia. The name of the mountains i ...
and Hyperboreans of ancient authors, did the existence of the Ural, or at least of its northern part, become firmly established in the Western geography. The Middle and Southern Ural were still largely unavailable and unknown to the Russian or Western European geographers. In the 1550s, after the
Tsardom of Russia The Tsardom of Russia or Tsardom of Rus' also externally referenced as the Tsardom of Muscovy, was the centralized Russian state from the assumption of the title of Tsar by Ivan IV in 1547 until the foundation of the Russian Empire by Peter I ...
had defeated the Khanate of Kazan and proceeded to gradually annex the lands of the Bashkirs, the Russians finally reached the southern part of the mountain chain. In 1574 they founded Ufa. The upper reaches of the Kama and Chusovaya in the Middle Ural, still unexplored, as well as parts of Transuralia still held by the hostile Siberian Khanate, were granted to the Stroganovs by several decrees of the tsar in 1558–1574. The Stroganovs land provided the staging ground for Yermak's incursion into Siberia. Yermak crossed the Ural from the Chusovaya to the
Tagil The Tagil (russian: Тагил) is a river in Sverdlovsk Oblast, Russia. It is long, with a drainage basin of . The average discharge is . The river has its sources on the eastern slopes of the Ural Mountains, east of Verkhny Tagil. From there, th ...
around 1581. In 1597 Babinov's road was built across the Ural from Solikamsk to the valley of the Tura, where the town of
Verkhoturye Verkhoturye (russian: Верхоту́рье) is a historical town and the administrative center of Verkhotursky District of Sverdlovsk Oblast, Russia, located in the middle Ural Mountains on the left bank of the Tura River north of Yekateri ...
(Upper Tura) was founded in 1598. Customs was established in Verkhoturye shortly thereafter and the road was made the only legal connection between European Russia and Siberia for a long time. In 1648 the town of Kungur was founded at the western foothills of the Middle Ural. During the 17th century the first deposits of
iron Iron () is a chemical element with symbol Fe (from la, ferrum) and atomic number 26. It is a metal that belongs to the first transition series and group 8 of the periodic table. It is, by mass, the most common element on Earth, right in ...
and
copper Copper is a chemical element with the symbol Cu (from la, cuprum) and atomic number 29. It is a soft, malleable, and ductile metal with very high thermal and electrical conductivity. A freshly exposed surface of pure copper has a pink ...
ores, mica, gemstones and other minerals were discovered in the Ural. Iron and copper
smelting Smelting is a process of applying heat to ore, to extract a base metal. It is a form of extractive metallurgy. It is used to extract many metals from their ores, including silver, iron, copper, and other base metals. Smelting uses heat and a c ...
works emerged. They multiplied particularly quickly during the reign of Peter I of Russia. In 1720–1722 he commissioned
Vasily Tatishchev Vasily Nikitich Tatishchev (russian: Васи́лий Ники́тич Тати́щев) (19 April 1686 – 15 July 1750) was a prominent Russian Imperial statesman, historian, philosopher, and ethnographer, best remembered as the author of the ...
to oversee and develop the mining and smelting works in the Ural. Tatishchev proposed a new copper smelting factory in Yegoshikha, which would eventually become the core of the city of Perm and a new iron smelting factory on the Iset, which would become the largest in the world at the time of construction and give birth to the city of Yekaterinburg. Both factories were actually founded by Tatishchev's successor,
Georg Wilhelm de Gennin Georg Wilhelm de Gennin (russian: Георг Вильгельм де Геннин) or Vilim Ivanovich de Gennin (russian: Вилим Иванович де Геннин) (11 October 1665 — 12 April 1750) was a German-born Russian military offic ...
, in 1723. Tatishchev returned to the Ural on the order of Empress Anna to succeed de Gennin in 1734–1737. Transportation of the output of the smelting works to the markets of European Russia necessitated the construction of the
Siberian Route The Siberian Route (russian: Сибирский тракт; ''Sibirsky trakt''), also known as the Moscow Highway (, Московский тракт) and Great Highway (, Большой тракт), was a historic route that connected European Rus ...
from Yekaterinburg across the Ural to Kungur and Yegoshikha (Perm) and further to Moscow, which was completed in 1763 and rendered Babinov's road obsolete. In 1745 gold was discovered in the Ural at Beryozovskoye and later at other deposits. It has been mined since 1747. The first ample geographic survey of the Ural Mountains was completed in the early 18th century by the Russian historian and geographer Vasily Tatishchev under the orders of Peter I. Earlier, in the 17th century, rich ore deposits were discovered in the mountains and their systematic extraction began in the early 18th century, eventually turning the region into the largest mineral base of Russia. One of the first scientific descriptions of the mountains was published in 1770–71. Over the next century, the region was studied by scientists from a number of countries, including Russia (geologist
Alexander Karpinsky Alexander Petrovich Karpinsky (russian: Александр Петрович Карпинский, trl. Aljeksandr Pjetrovič Karpinskij; 7 January 1847 ( NS) – 15 July 1936) was a prominent Russian and Soviet geologist and mineralogist, and ...
, botanist Porfiry Krylov and zoologist Leonid Sabaneyev), the United Kingdom (geologist Sir Roderick Murchison), France (paleontologist Édouard de Verneuil), and Germany (naturalist
Alexander von Humboldt Friedrich Wilhelm Heinrich Alexander von Humboldt (14 September 17696 May 1859) was a German polymath, geographer, naturalist, explorer, and proponent of Romantic philosophy and science. He was the younger brother of the Prussian minister ...
, geologist Alexander Keyserling). In 1845, Murchison, who had according to ''
Encyclopædia Britannica The (Latin for "British Encyclopædia") is a general knowledge English-language encyclopaedia. It is published by Encyclopædia Britannica, Inc.; the company has existed since the 18th century, although it has changed ownership various t ...
'' "compiled the first geologic map of the Ural in 1841", published ''The Geology of Russia in Europe and the Ural Mountains'' with de Verneuil and Keyserling.cf. The first railway across the Urals had been built by 1878 and linked Perm to Yekaterinburg via Chusovoy, Kushva and Nizhny Tagil. In 1890 a railway linked Ufa and
Chelyabinsk Chelyabinsk ( rus, Челя́бинск, p=tɕɪˈlʲæbʲɪnsk, a=Ru-Chelyabinsk.ogg; ba, Силәбе, ''Siläbe'') is the administrative center and largest city of Chelyabinsk Oblast, Russia. It is the seventh-largest city in Russia, with a ...
via
Zlatoust Zlatoust ( rus, Златоуст, p=zlətɐˈust) is a city in Chelyabinsk Oblast, Russia, located on the Ay River (in the Kama basin), west of Chelyabinsk. Population: 181,000 (1971); 161,000 (1959); 99,000 (1939); 48,000 (1926); 21,000 ( ...
. In 1896 this section became a part of the Trans-Siberian Railway. In 1909 yet another railway connecting Perm and Yekaterinburg passed through Kungur by the way of the Siberian Route. It has eventually replaced the Ufa – Chelyabinsk section as the main trunk of the Trans-Siberian railway. The highest peak of the Ural, Mount Narodnaya, (elevation 1,895 m (6,217 ft)) was identified in 1927. During the
Soviet industrialization Industrialisation in the Soviet Union was a process of accelerated building-up of the industrial potential of the Soviet Union to reduce the economy's lag behind the developed capitalist states, which was carried out from May 1929 to June 1941. ...
in the 1930s the city of Magnitogorsk was founded in the South-Eastern Ural as a center of iron smelting and steelmaking. During the German invasion of the Soviet Union in 1941–1942, the mountains became a key element in Nazi planning for the territories which they expected to conquer in the USSR. Faced with the threat of having a significant part of the Soviet territories occupied by the enemy, the government evacuated many of the industrial enterprises of European Russia and Ukraine to the eastern foothills of the Ural, considered a safe place out of reach of the German bombers and troops. Three giant tank factories were established at the Uralmash in Sverdlovsk (as Yekaterinburg used to be known), Uralvagonzavod in Nizhny Tagil, and Chelyabinsk Tractor Plant in Chelyabinsk. After the war, in 1947–1948, Chum –
Labytnangi Labytnangi (russian: Лабытна́нги; from Khanty: ; lit. ''seven larches''; Nenets: Лабытнаӈгы. ''Labytnaŋgy'') is a town in Yamalo-Nenets Autonomous Okrug, Russia, located on the left bank of the Ob River, northwest of Salek ...
railway, built with the forced labor of
Gulag The Gulag, an acronym for , , "chief administration of the camps". The original name given to the system of camps controlled by the State Political Directorate, GPU was the Main Administration of Corrective Labor Camps (, )., name=, group= ...
inmates, crossed the Polar Ural.
Mayak The Mayak Production Association (russian: Производственное объединение «Маяк», , from 'lighthouse') is one of the biggest nuclear facilities in the Russian Federation, housing a reprocessing plant. The closest ...
, 150 km southeast of Yekaterinburg, was a center of the Soviet nuclear industry and site of the Kyshtym disaster.


Geography and topography

The Ural Mountains extend about from the
Kara Sea The Kara Sea (russian: Ка́рское мо́ре, ''Karskoye more'') is a marginal sea, separated from the Barents Sea to the west by the Kara Strait and Novaya Zemlya, and from the Laptev Sea to the east by the Severnaya Zemlya archipel ...
to the Kazakh Steppe along the border of Kazakhstan. Vaygach Island and the island of Novaya Zemlya form a further continuation of the chain on the north. Geographically this range marks the northern part of the border between Europe and Asia. Its highest peak is Mount Narodnaya, approximately in elevation. Transverse faults divide the mountain chain into seven major units, each of which has its own typical pattern of mountain ridges. From north to south, these are the Pay-Khoy, Zapolyarnyy, Pripolyarnyy, Polyarnyy, Severnyy, Sredniy, Yuzhnny Ural and Mugodzhary. The average altitudes of the Urals are around 1000–1300 meters, the highest point being Narodnaya peak in the Pripolyarnyy Ural which reaches a height of 1894 meters. By topography and other natural features, the Urals are divided, from north to south, into the Polar (or Arctic), Nether-Polar (or Sub-Arctic), Northern, Central and Southern parts.


Polar Ural

The
Polar Urals The Polar Urals (russian: Полярный Урал) are a mountain range in the western part of the Yamalo-Nenets Autonomous Okrug and the northeastern part of Komi, Russian Federation. The border between Europe and Asia runs along the main rid ...
extend for about from Mount Konstantinov Kamen in the north to the river Khulga in the south; they have an area of about and a strongly dissected relief. The maximum height is at Mount Payer and the average height is . The mountains of the Polar Ural have exposed rock with sharp ridges, though flattened or rounded tops are also found.


Nether-polar Ural

The Nether-Polar Ural are higher, and up to wider than the Polar Urals. They include the highest peaks of the range: Mount Narodnaya (), Mount Karpinsky () and
Manaraga Manaraga is a peak in the northern Ural Mountains in Yugyd Va National Park, within the Komi Republic, in Russia. It has an elevation of .russianГора Манарага} Wikimapia Geography It is located 16.5 km west of Mount Narodnaya, the h ...
(). They extend for more than south to the
Shchugor The Shchugor (russian: Щугор) is a right tributary to the Pechora in the Komi Republic, northwest Russia Russia (, , ), or the Russian Federation, is a transcontinental country spanning Eastern Europe and Northern Asia. It is the ...
. The many ridges are sawtooth shaped and dissected by river valleys. Both Polar and Nether-Polar Urals are typically Alpine; they bear traces of
Pleistocene The Pleistocene ( , often referred to as the ''Ice age'') is the geological Epoch (geology), epoch that lasted from about 2,580,000 to 11,700 years ago, spanning the Earth's most recent period of repeated glaciations. Before a change was fina ...
glaciation, along with permafrost and extensive modern glaciation, including 143 extant glaciers.


Northern Ural

The Northern Ural consist of a series of parallel ridges up to in height and longitudinal hollows. They are elongated from north to south and stretch for about from the river Usa. Most of the tops are flattened, but those of the highest mountains, such as Telposiz, and Konzhakovsky Stone, have a dissected topography. Intensive weathering has produced vast areas of eroded stone on the mountain slopes and summits of the northern areas.


Middle Ural

The Central Ural are the lowest part of the Ural, with smooth mountain tops, the highest mountain being (Basegi); they extend south from the river Ufa.


Southern Ural

The relief of the Southern Ural is more complex, with numerous valleys and parallel ridges directed south-west and meridionally. The range includes the Ilmensky Mountains separated from the main ridges by the Miass. The maximum height is ( Mount Yamantau) and the width reaches . Other notable peaks lie along the Iremel mountain ridge (Bolshoy Iremel and Maly Iremel) and Nurgush. The Southern Urals extend some up to the sharp westward bend of the river Ural and terminate in the
Guberlin Mountains Guberlinsky mountains — mountain range in the east Orenburg Oblast, in basin river Guberl (right tributary Ural). Southern part of Ural Mountains. The Guberlin Mountains extend from north to south for . Their area is about . The mountains ...
and finally in the wide Mughalzhar Hills.


Geology

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 formed during the Uralian orogeny due to the collision of the eastern edge of the supercontinent Laurasia with the young and rheologically weak continent of
Kazakhstania Kazakhstania ( kk, Qazaqstaniya), the Kazakh terranes, or the Kazakhstan Block, is a geological region in Central Asia which consists of the area roughly centered on Lake Balkhash, north and east of the Aral Sea, south of the Siberian craton and ...
, which now underlies much of Kazakhstan and West Siberia west of the Irtysh, and intervening island arcs. The collision lasted nearly 90 million years in the late
Carboniferous The Carboniferous ( ) is a geologic period and system of the Paleozoic that spans 60 million years from the end of the Devonian Period million years ago ( Mya), to the beginning of the Permian Period, million years ago. The name ''Carboniferou ...
– early
Triassic The Triassic ( ) is a geologic period and system which spans 50.6 million years from the end of the Permian Period 251.902 million years ago ( Mya), to the beginning of the Jurassic Period 201.36 Mya. The Triassic is the first and shortest per ...
. Unlike the other major orogens of the
Paleozoic The Paleozoic (or Palaeozoic) Era is the earliest of three geologic eras of the Phanerozoic Eon. The name ''Paleozoic'' ( ;) was coined by the British geologist Adam Sedgwick in 1838 by combining the Greek words ''palaiós'' (, "old") and ...
( Appalachians, Caledonides, Variscides), the Urals have not undergone post-orogenic extensional collapse and are unusually well preserved for their age, being underlaid by a pronounced crustal root. East and south of the Urals much of the orogen is buried beneath later
Mesozoic The Mesozoic Era ( ), also called the Age of Reptiles, the Age of Conifers, and colloquially as the Age of the Dinosaurs is the second-to-last era of Earth's geological history, lasting from about , comprising the Triassic, Jurassic and Cretace ...
and
Cenozoic The Cenozoic ( ; ) is Earth's current geological era, representing the last 66million years of Earth's history. It is characterised by the dominance of mammals, birds and flowering plants, a cooling and drying climate, and the current configu ...
sediment Sediment is a naturally occurring material that is broken down by processes of weathering and erosion, and is subsequently transported by the action of wind, water, or ice or by the force of gravity acting on the particles. For example, sand ...
s. The adjacent
Pay-Khoy Ridge The Pay-Khoy Range ( rus, хребет Пай-Хой) is a mountain range at the northern end of the Ural Mountains. It lies within the Nenets Autonomous Okrug. Geography The ridge is extended from northwest to southeast. It is located on the Yu ...
to the north and Novaya Zemlya are not a part of the Uralian orogen and formed later. Many deformed and metamorphosed rocks, mostly of
Paleozoic The Paleozoic (or Palaeozoic) Era is the earliest of three geologic eras of the Phanerozoic Eon. The name ''Paleozoic'' ( ;) was coined by the British geologist Adam Sedgwick in 1838 by combining the Greek words ''palaiós'' (, "old") and ...
age, surface within the Urals. The
sedimentary Sedimentary rocks are types of rock that are formed by the accumulation or deposition of mineral or organic particles at Earth's surface, followed by cementation. Sedimentation is the collective name for processes that cause these particles ...
and
volcanic A volcano is a rupture in the crust of a planetary-mass object, such as Earth, that allows hot lava, volcanic ash, and gases to escape from a magma chamber below the surface. On Earth, volcanoes are most often found where tectonic plat ...
layers are folded and faulted. The sediments to the west of the Ural Mountains are formed of
limestone Limestone ( calcium carbonate ) is a type of carbonate sedimentary rock which is the main source of the material lime. It is composed mostly of the minerals calcite and aragonite, which are different crystal forms of . Limestone forms w ...
,
dolomite Dolomite may refer to: *Dolomite (mineral), a carbonate mineral *Dolomite (rock), also known as dolostone, a sedimentary carbonate rock *Dolomite, Alabama, United States, an unincorporated community *Dolomite, California, United States, an unincor ...
and
sandstone Sandstone is a clastic sedimentary rock composed mainly of sand-sized (0.0625 to 2 mm) silicate grains. Sandstones comprise about 20–25% of all sedimentary rocks. Most sandstone is composed of quartz or feldspar (both silicat ...
left from ancient shallow seas. The eastern side is dominated by
basalt Basalt (; ) is an aphanitic (fine-grained) extrusive igneous rock formed from the rapid cooling of low-viscosity lava rich in magnesium and iron (mafic lava) exposed at or very near the surface of a rocky planet or moon. More than 90 ...
s. The western slope of the Ural Mountains has predominantly karst topography, especially in the Sylva basin, which is a tributary of the
Chusovaya The Chusovaya (russian: Чусова́я) is a river flowing in Perm Krai, Sverdlovsk Oblast and Chelyabinsk Oblast of Russia. A tributary of the Kama, which in turn is a tributary of the Volga, it discharges into the Chusovskoy Cove of the Kam ...
. It is composed of severely eroded sedimentary rocks (sandstones and limestones) that are about 350 million years old. There are many
cave A cave or cavern is a natural void in the ground, specifically a space large enough for a human to enter. Caves often form by the weathering of rock and often extend deep underground. The word ''cave'' can refer to smaller openings such as sea ...
s,
sinkhole A sinkhole is a depression or hole in the ground caused by some form of collapse of the surface layer. The term is sometimes used to refer to doline, enclosed depressions that are locally also known as ''vrtače'' and shakeholes, and to openi ...
s and underground streams. The karst topography is much less developed on the eastern slopes. The eastern slopes are relatively flat, with some hills and rocky outcrops and contain alternating volcanic and sedimentary layers dated to the middle Paleozoic Era. Most high mountains consist of weather-resistant rocks such as
quartzite Quartzite is a hard, non- foliated metamorphic rock which was originally pure quartz sandstone.Essentials of Geology, 3rd Edition, Stephen Marshak, p 182 Sandstone is converted into quartzite through heating and pressure usually related to tec ...
,
schist Schist ( ) is a medium-grained metamorphic rock showing pronounced schistosity. This means that the rock is composed of mineral grains easily seen with a low-power hand lens, oriented in such a way that the rock is easily split into thin flakes ...
and
gabbro Gabbro () is a phaneritic (coarse-grained), mafic intrusive igneous rock formed from the slow cooling of magnesium-rich and iron-rich magma into a holocrystalline mass deep beneath the Earth's surface. Slow-cooling, coarse-grained gabbro is ...
that are between 395 and 570 million years old. The river valleys are underlain by limestone. The Ural Mountains contain about 48 species of economically valuable ores and minerals. Eastern regions are rich in chalcopyrite, nickel oxide,
gold Gold is a chemical element with the symbol Au (from la, aurum) and atomic number 79. This makes it one of the higher atomic number elements that occur naturally. It is a bright, slightly orange-yellow, dense, soft, malleable, and ductile ...
,
platinum Platinum is a chemical element with the symbol Pt and atomic number 78. It is a dense, malleable, ductile, highly unreactive, precious, silverish-white transition metal. Its name originates from Spanish , a diminutive of "silver". Pla ...
, chromite and
magnetite Magnetite is a mineral and one of the main iron ores, with the chemical formula Fe2+Fe3+2O4. It is one of the oxides of iron, and is ferrimagnetic; it is attracted to a magnet and can be magnetized to become a permanent magnet itself. With ...
ores, as well as in
coal Coal is a combustible black or brownish-black sedimentary rock, formed as rock strata called coal seams. Coal is mostly carbon with variable amounts of other elements, chiefly hydrogen, sulfur, oxygen, and nitrogen. Coal is formed when ...
( Chelyabinsk Oblast),
bauxite Bauxite is a sedimentary rock with a relatively high aluminium content. It is the world's main source of aluminium and gallium. Bauxite consists mostly of the aluminium minerals gibbsite (Al(OH)3), boehmite (γ-AlO(OH)) and diaspore (α-AlO ...
, talc, fireclay and abrasives. The Western Urals contain deposits of coal, oil, natural gas (Ishimbay and Krasnokamsk areas) and
potassium salt In chemistry, a salt is a chemical compound consisting of an ionic assembly of positively charged cations and negatively charged anions, which results in a compound with no net electric charge. A common example is table salt, with positively cha ...
s. Both slopes are rich in bituminous coal and lignite, and the largest deposit of bituminous coal is in the north (Pechora field). The specialty of the Urals is precious and semi-precious stones, such as emerald, amethyst, aquamarine,
jasper Jasper, an aggregate of microgranular quartz and/or cryptocrystalline chalcedony and other mineral phases,Kostov, R. I. 2010. Review on the mineralogical systematics of jasper and related rocks. – Archaeometry Workshop, 7, 3, 209-213PDF/ref ...
, rhodonite,
malachite Malachite is a copper carbonate hydroxide mineral, with the formula Cu2CO3(OH)2. This opaque, green-banded mineral crystallizes in the monoclinic crystal system, and most often forms botryoidal, fibrous, or stalagmitic masses, in fracture ...
and
diamond Diamond is a solid form of the element carbon with its atoms arranged in a crystal structure called diamond cubic. Another solid form of carbon known as graphite is the chemically stable form of carbon at room temperature and pressure, b ...
. Some of the deposits, such as the magnetite ores at Magnitogorsk, are already nearly depleted.


Rivers and lakes

Many rivers originate in the Ural Mountains. The western slopes south of the border between the Komi Republic and Perm Krai and the eastern slopes south of approximately 54°30'N drain into the
Caspian Sea The Caspian Sea is the world's largest inland body of water, often described as the world's largest lake or a full-fledged sea. An endorheic basin, it lies between Europe and Asia; east of the Caucasus, west of the broad steppe of Central A ...
via the Kama and Ural basins. The tributaries of the Kama include the
Vishera Vishera may refer to: * Vishera FX-series CPU, codename for a line of CPU by AMD * Vishera Nature Reserve, in Perm Krai, Russia * Malaya Vishera Malaya Vishera (russian: Ма́лая Ви́шера) is a town and the administrative center of Mal ...
, Chusovaya, and Belaya and originate on both the eastern and western slopes. The rest of the Urals drain into the Arctic Ocean, mainly via the Pechora basin in the west, which includes the Ilych,
Shchugor The Shchugor (russian: Щугор) is a right tributary to the Pechora in the Komi Republic, northwest Russia Russia (, , ), or the Russian Federation, is a transcontinental country spanning Eastern Europe and Northern Asia. It is the ...
, and the Usa, and via the Ob basin in the east, which includes the Tobol, Tavda, Iset, Tura and Severnaya Sosva. The rivers are frozen for more than half the year. Generally, the western rivers have higher flow volume than the eastern ones, especially in the Northern and Nether-Polar regions. Rivers are slower in the Southern Urals. This is because of low precipitation and the relatively warm climate resulting in less snow and more evaporation. The mountains contain a number of deep lakes.Davis, W.M. (1898). "The Ural mountains". ''Science''. 7 (173): 563–564. The eastern slopes of the Southern and Central Urals have most of these, among the largest of which are the Uvildy, Itkul, Turgoyak, and Tavatuy lakes. The lakes found on the western slopes are less numerous and also smaller. Lake Bolshoye Shchuchye, the deepest lake in the Polar Urals, is deep. Other lakes, too, are found in the glacial valleys of this region. Spas and sanatoriums have been built to take advantage of the medicinal muds found in some of the mountain lakes.


Climate

The climate of the Urals is continental. The mountain ridges, elongated from north to south, effectively absorb sunlight thereby increasing the temperature. The areas west of the Ural Mountains are warmer in winter than the eastern regions because the former are warmed by Atlantic winds whereas the eastern slopes are chilled by Siberian air masses. The average January temperatures increase in the western areas from in the Polar to in the Southern Urals and the corresponding temperatures in July are and . The western areas also receive more rainfall than the eastern ones by per year. This is because the mountains trap clouds from the Atlantic Ocean. The highest precipitation, approximately , is in the Northern Urals with up to snow. The eastern areas receive from in the north to in the south. Maximum precipitation occurs in the summer: the winter is dry because of the Siberian High.


Flora

The landscapes of the Urals vary with both latitude and longitude and are dominated by forests and steppes. The southern area of the Mughalzhar Hills is a semidesert. Steppes lie mostly in the southern and especially south-eastern Urals. Meadow steppes have developed on the lower parts of mountain slopes and are covered with zigzag and mountain clovers, '' Serratula gmelinii'', dropwort, meadow-grass and ''
Bromus inermis ''Bromus inermis'' is a species of the true grass family (Poaceae). This rhizomatous grass is native to Europe and North America North America is a continent in the Northern Hemisphere and almost entirely within the Western Hemisph ...
'', reaching the height of 60–80 cm. Much of the land is cultivated. To the south, the meadow steppes become more sparse, dry and low. The steep gravelly slopes of the mountains and hills of the eastern slopes of the Southern Urals are mostly covered with rocky steppes. River valleys contain willow, poplar and caragana shrubs. Forest landscapes of the Urals are diverse, especially in the southern part. The western areas are dominated by dark coniferous taiga forests which change to mixed and deciduous forests in the south. The eastern mountain slopes have light coniferous taiga forests. The Northern Urals are dominated by conifers, namely Siberian fir, Siberian pine, Scots pine,
Siberian spruce ''Picea obovata'', the Siberian spruce, is a spruce native to Siberia, from the Ural Mountains east to Magadan Oblast, and from the Arctic tree line south to the Altay Mountains in northwestern Mongolia. Description and uses It is a medium-size ...
, Norway spruce and Siberian larch, as well as by
silver Silver is a chemical element with the symbol Ag (from the Latin ', derived from the Proto-Indo-European ''h₂erǵ'': "shiny" or "white") and atomic number 47. A soft, white, lustrous transition metal, it exhibits the highest electrical ...
and downy birches. The forests are much sparser in the Polar Urals. Whereas in other parts of the Ural Mountains they grow up to an altitude of 1000 m, in the Polar Urals the tree line is at 250–400 m. The low polar forests are mixed with swamps, lichens, bogs and shrubs. Dwarf birch, mosses and berries ( blueberry,
cloudberry ''Rubus chamaemorus'' is a species of flowering plant in the rose family Rosaceae, native to cool temperate regions, alpine and arctic tundra and boreal forest. This herbaceous perennial produces amber-colored edible fruit similar to the blackb ...
, black crowberry, etc.) are abundant. The forests of the Southern Urals are the most diverse in composition: here, together with coniferous forests are also abundant broadleaf tree species such as English oak, Norway maple and elm. The Virgin Komi Forests in the northern Urals are recognized as a World Heritage site.


Fauna

The Ural forests are inhabited by animals typical of Siberia, such as elk, brown bear, fox, wolf,
wolverine The wolverine (), (''Gulo gulo''; ''Gulo'' is Latin for " glutton"), also referred to as the glutton, carcajou, or quickhatch (from East Cree, ''kwiihkwahaacheew''), is the largest land-dwelling species of the family Mustelidae. It is a musc ...
, lynx, squirrel,
reindeer Reindeer (in North American English, known as caribou if wild and ''reindeer'' if domesticated) are deer in the genus ''Rangifer''. For the last few decades, reindeer were assigned to one species, ''Rangifer tarandus'', with about 10 subs ...
and sable (north only). Because of the easy accessibility of the mountains there are no specifically mountainous species. In the Middle Urals, one can see a rare mixture of sable and pine marten named kidus. In the Southern Urals, badger and black polecat are common. Reptiles and amphibians live mostly in the Southern and Central Ural and are represented by the
common viper ''Vipera berus'', the common European adderMallow D, Ludwig D, Nilson G. (2003). ''True Vipers: Natural History and Toxinology of Old World Vipers''. Malabar, Florida: Krieger Publishing Company. . or common European viper,Stidworthy J. (1974). ...
, lizards and grass snakes. Bird species are represented by
capercaillie ''Tetrao'' is a genus of birds in the grouse subfamily known as capercaillies. They are some of the largest living grouse. Taxonomy The genus ''Tetrao'' was introduced in 1758 by the Swedish naturalist Carl Linnaeus in the tenth edition of hi ...
,
black grouse The black grouse (''Lyrurus tetrix''), also known as northern black grouse, Eurasian black grouse, blackgame or blackcock, is a large game bird in the grouse family. It is a sedentary species, spanning across the Palearctic in moorland and step ...
, hazel grouse, spotted nutcracker, and cuckoos. In summers, the South and Middle Urals are visited by songbirds, such as nightingale and
redstart {{Hatnote, For the ship, see USS Redstart (AM-378) Redstart is a name used for a number of songbirds that are not closely related to each other: Old world flycatcher family (Muscicapidae) * ''Phoenicurus'', 14 species found in Africa, Asia and E ...
. The steppes of the Southern Urals are dominated by hares and rodents such as hamsters, susliks, and jerboa. There are many birds of prey such as lesser kestrel and buzzards. The animals of the Polar Urals are few and are characteristic of the tundra; they include Arctic fox, lemming, and reindeer. The birds of these areas include rough-legged buzzard, snowy owl, tundra partridge, and
rock ptarmigan The rock ptarmigan (''Lagopus muta'') is a medium-sized game bird in the grouse family. It is known simply as the ptarmigan in the UK. It is the official bird for the Canadian territory of Nunavut, where it is known as the ''aqiggiq'' (ᐊ� ...
.


Ecology

The continuous and intensive economic development of the last centuries has affected the fauna, and wildlife is much diminished around all industrial centers. During World War II, hundreds of factories were evacuated from Western Russia before the German occupation, flooding the Urals with industry. The conservation measures include establishing national wildlife parks. There are nine strict nature reserves in the Urals: the Ilmen, the oldest one, mineralogical reserve founded in 1920 in Chelyabinsk Oblast, Pechora-Ilych in the Komi Republic, Bashkir and its former branch Shulgan-Tash in Bashkortostan, Visim in Sverdlovsk Oblast, Southern Ural in Bashkortostan, Basegi in Perm Krai,
Vishera Vishera may refer to: * Vishera FX-series CPU, codename for a line of CPU by AMD * Vishera Nature Reserve, in Perm Krai, Russia * Malaya Vishera Malaya Vishera (russian: Ма́лая Ви́шера) is a town and the administrative center of Mal ...
in Perm Krai and Denezhkin Kamen in Sverdlovsk Oblast. The area has also been severely damaged by the
plutonium Plutonium is a radioactive chemical element with the symbol Pu and atomic number 94. It is an actinide metal of silvery-gray appearance that tarnishes when exposed to air, and forms a dull coating when oxidized. The element normally exh ...
-producing facility
Mayak The Mayak Production Association (russian: Производственное объединение «Маяк», , from 'lighthouse') is one of the biggest nuclear facilities in the Russian Federation, housing a reprocessing plant. The closest ...
, opened in Chelyabinsk-40 (later called Chelyabinsk-65, Ozyorsk), in the Southern Ural, after World War II. Its plants went into operation in 1948 and, for the first ten years, dumped unfiltered radioactive waste into the river
Techa The Techa is an eastward river on the eastern flank of the southern Ural Mountains noted for its nuclear contamination. It is long, and its basin covers . It begins by the once-secret nuclear processing town of Ozyorsk about northwest of Chely ...
and
Lake Karachay Lake Karachay (russian: Карача́й), sometimes spelled Karachai or Karachaj, was a small lake in the southern Ural mountains in central Russia. Starting in 1951, the Soviet Union used Karachay as a dumping site for radioactive waste from May ...
. In 1990, efforts were underway to contain the radiation in one of the lakes, which was estimated at the time to expose visitors to 500 millirem per day. As of 2006, 500 mrem in the natural environment was the upper limit of exposure considered safe for a member of the general public in an entire year (though workplace exposure over a year could exceed that by a factor of 10). Over of land were contaminated in 1957 from a storage tank explosion, only one of several serious accidents that further polluted the region. The 1957 accident expelled 20 million curies of radioactive material, 90% of which settled into the land immediately around the facility. Although some reactors of Mayak were shut down in 1987 and 1990, the facility keeps producing plutonium.Производство плутония с ПО "Маяк" на Сибирский химкомбинат перенесено не будет
lutonium production will not be transferred from Mayak obzor.westsib.ru, 25 March 2010 (in Russian)


Cultural significance

The Urals have been viewed by Russians as a "treasure box" of mineral resources, which were the basis for its extensive industrial development. In addition to iron and copper, the Urals were a source of gold,
malachite Malachite is a copper carbonate hydroxide mineral, with the formula Cu2CO3(OH)2. This opaque, green-banded mineral crystallizes in the monoclinic crystal system, and most often forms botryoidal, fibrous, or stalagmitic masses, in fracture ...
, alexandrite, and other gems such as those used by the court jeweller Fabergé. As Russians in other regions gather mushrooms or berries, Uralians gather mineral specimens and gems.
Dmitry Mamin-Sibiryak Dmitry Narkisovich Mamin-Sibiryak (russian: Дми́трий Нарки́сович Ма́мин-Сибиря́к) (October 25, 1852 – November 2, 1912) was a Russian author most famous for his novels and short stories about life in the Ur ...
(1852–1912)
Pavel Bazhov Pavel Petrovich Bazhov (russian: Па́вел Петро́вич Бажо́в; 27 January 1879 – 3 December 1950) was a Russian writer and publicist. Bazhov is best known for his collection of fairy tales '' The Malachite Box'', based on Ura ...
(1879–1950), as well as Aleksey Ivanov and Olga Slavnikova, post-Soviet writers, have written of the region. The region served as a military stronghold during Peter the Great's
Great Northern War The Great Northern War (1700–1721) was a conflict in which a coalition led by the Tsardom of Russia successfully contested the supremacy of the Swedish Empire in Northern, Central and Eastern Europe. The initial leaders of the anti-Swe ...
with Sweden, during Stalin's rule when the Magnitogorsk Metallurgical Complex was built and Russian industry relocated to the Urals during the Nazi advance at the beginning of World War II, and as the center of the Soviet nuclear industry during the
Cold War The Cold War is a term commonly used to refer to a period of geopolitical tension between the United States and the Soviet Union and their respective allies, the Western Bloc and the Eastern Bloc. The term '' cold war'' is used because t ...
. Extreme levels of air, water, and radiological contamination and
pollution Pollution is the introduction of contaminants into the natural environment that cause adverse change. Pollution can take the form of any substance (solid, liquid, or gas) or energy (such as radioactivity, heat, sound, or light). Pollutants, th ...
by industrial wastes resulted. Population exodus followed, and economic depression at the time of the collapse of the Soviet Union, but in post-Soviet times additional mineral exploration, particularly in the northern Urals, has been productive and the region has attracted industrial investment.


Gallery

File:Mount Iremel.jpg, Mount Iremel File:Iremel Mount.jpg, Mount Iremel File:Big Iremel mountain peak 5.jpg, Mount Iremel peak File:Yamantau.JPG, Mount Yamantau File:Склон и небо.jpg, View from mount Yamantau second peak (Bolshaya Yamantau) File:Лес вокруг г.Ямантау.jpg, Forest around mount Yamantau File:Вид на Двуглавую сопку в НП «Таганай».jpg, View of the two-peak mount Taganay File:Зимний Таганай.jpg, Mount Otkliknoy Greben File:Вид на Круглицу.jpg, Taganay national park File:Восход на Дальнем Таганае.jpg, Sunrise on Taganay


See also

* Yugyd Va National Park * Dyatlov Pass incident *
East Ural Radioactive Trace The Kyshtym disaster, sometimes referred to as the Mayak disaster or Ozyorsk disaster in newer sources, was a radioactive contamination accident that occurred on 29 September 1957 at Mayak, a plutonium production site for nuclear weapons and n ...
* Idel-Ural State * Pangea *
Research Range The Research Range (russian: Исследовательский хребет) is a mountain range at the northern end of the Ural Mountains. It extends north of the Arctic Circle, and forms the border between the Komi Republic and the Khanty–Man ...
* Ural Mountains in Nazi planning


References


External links


Peakbagger.com
page on the Ural Mountains
Ural Expeditions & Tours
page on the five parts of the Ural Mountains {{Authority control Mountain ranges of Russia Mountain ranges of Kazakhstan Landforms of Siberia Landforms of Arkhangelsk Oblast Landforms of Bashkortostan Landforms of Chelyabinsk Oblast Landforms of Khanty-Mansi Autonomous Okrug Landforms of the Komi Republic Landforms of Nenets Autonomous Okrug Landforms of Sverdlovsk Oblast Landforms of Tyumen Oblast Aktobe Region Novaya Zemlya Geology of Russia Mountain ranges of Asia Mountain ranges of Europe Physiographic divisions History of Ural Turkic toponyms