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13-848: The river has its source in the Aldan Highlands . It forms the eastern limit of the Lena Plateau . It is the biggest tributary of the Aldan , which it joins on the left bank a few miles west of Khandyga . This Sakha Republic location article is a stub . You can help Misplaced Pages by expanding it . This article related to a river in the Russian Far East is a stub . You can help Misplaced Pages by expanding it . Aldan Highlands The Aldan Highlands , or Aldan Plateau (Russian: Алданское нагорье , romanized : Aldanskoye Nagorye ; Yakut : Алдан үрдэлэ ) are

26-575: A mountainous area in the Sakha Republic , Far Eastern Federal District , Russia. Aldan town and Tommot are located in the northern area of the highlands and Chulman in the south. The Olyokma Nature Reserve is a protected area located on the northwestern side, partly within the neighboring Lena Plateau . The area of the Aldan and the Yudoma-Maya highlands, between the basins of

39-735: A peninsula (Greenland and Iceland), and "Angara-land", which would have been eastern Asia, named after the Angara River in Siberia. About 2.5 billion years ago (in the Siderian Period), Siberia was part of a continent called Arctica , along with the Canadian Shield . Around 1.1 billion years ago (in the Stenian Period), Siberia became part of the supercontinent of Rodinia , a state of affairs which lasted until

52-662: The Olyokma-Chara Plateau . The Dzhugdzhur Range rises to the east of the highlands. The highest point of the Aldan Highlands is Mount Ningam (Гора Нингам), a 2,287 metres (7,503 ft) high peak located in the southern part, rising above the basin of the Gonam River, a left tributary of the Uchur. The same mountain is 2,306 metres (7,566 ft) high according to other sources. The system of

65-517: The Tonian about 750 million years ago when it broke up, and Siberia became part of the landmass of Protolaurasia . During the Ediacaran Period around 600 million years ago, Protolaurasia became part of the southern supercontinent of Pannotia but around 550 million years ago, both Pannotia and Protolaurasia split up to become the continents of Laurentia , Baltica and Siberia. Siberia

78-818: The Yungyuele , the Timpton and the Tuolba . The highlands are composed of Archean crystalline slates and gneisses . The Aldan Highlands coincide geographically with the Aldan Shield , a geological region that is an exposed part of the Siberian Craton . Together with the Anabar Shield further to the northwest, the Aldan Shield is one of the main features of the craton . The mountains of

91-723: The Aldan Highlands comprises a number of subranges where mountains are generally of middle height and their relief usually smooth. The highest point is an unnamed 2,306 m (7,566 ft) summit. The ranges within the uplands include the following: Besides the Aldan and the Amga, the rivers of the highlands include the Buotama , the Amedichi , the Elkon , the Ulu , the Bolshoy Nimnyr ,

104-589: The Aldan River and the Yudoma , was uncharted territory well until the 1930s. It was first surveyed in 1934 by geologist Yuri Bilibin (1901—1952) together with mining engineer Evgeny Bobin (1897—1941) in the course of an expedition sent by the government of the USSR . Bilibin and Bobin made a thorough topographic survey of the mountainous region leading separate research parties. The Aldan Highlands are located at

117-763: The Late Carboniferous - Permian . The Verkhoyansk Sea , a passive continental margin, was fringing the Siberian Craton to the east in what is now the East Siberian Lowland . Angaraland was named in the 1880s by Austrian geologist Eduard Suess who erroneously believed that in the Paleozoic Era there were two large continents in the Northern Hemisphere: "Atlantis", which was North America connected to Europe via

130-500: The highlands are covered by larch taiga up to elevations between 1,100 and 1,300 m and by rocky tundra at higher altitudes. Siberian Craton Siberia , also known as Siberian Craton , Angaraland (or simply Angara ) and Angarida , is an ancient craton in the heart of Siberia . Today forming the Central Siberian Plateau , it formed an independent landmass prior to its fusion into Pangea during

143-775: The landmass of Afro-Eurasia . To the east it is joined to the North American Plate at the Chersky Range . In around 250 million years from now Siberia may be in the subtropical region and part of the new supercontinent of Pangaea Proxima . [REDACTED] Africa [REDACTED] Antarctica [REDACTED] Asia [REDACTED] Australia [REDACTED] Europe [REDACTED] North America [REDACTED] South America [REDACTED] Afro-Eurasia [REDACTED] Americas [REDACTED] Eurasia [REDACTED] Oceania This palaeogeography article

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156-787: The southern end of the Sakha Republic, between the Aldan River and the Uchur River , a right tributary of the Aldan. The Aldan partly crosses the uplands in the north, in the same manner as the Amga River in the west. The highlands are limited by the Stanovoy Range to the southwest, and by its Toko-Stanovik subrange to the south and southeast. In the west the Olyokma River marks the limit, beyond which lies

169-677: Was an independent continent through the early Paleozoic until, during the Carboniferous Period, it collided with the minor continent of Kazakhstania . A subsequent collision with Euramerica/Laurussia during the Late Carboniferous - Permian formed Pangea . Pangaea split up during the Jurassic though Siberia stayed with Laurasia . Laurasia gradually split up during the Cretaceous with Siberia remaining part of present-day northeastern Eurasia . Today, Siberia forms part of

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