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Akitkan
The Akitkan Range (russian: хребет Акиткан; zh, 阿基特坎山) is a mountain range in Irkutsk Oblast and Buryatia, Russian Federation.Google Earth The Paleoproterozoic Akitkan Orogen is named after the range. History Between 1855 and 1858 Ivan Kryzhin (d. 1884) took part in the Eastern Siberian expedition led by Russian astronomer and traveler Ludwig Schwarz. In 1857 he mapped the Kirenga River and, while exploring its right tributary, the Cherepanikha, Kryzhin discovered the formerly unknown Akitkan Range rising above the area of its source. The North Baikal Highlands, where the range rises, were explored between 1909 and 1911 by Russian geologist Pavel Preobrazhensky (1874 - 1944). He surveyed the river valley of the Chechuy, a right tributary of the Lena with its sources in the Akitkan. Overcoming numerous difficulties, Preobrazhensky managed to map for the first time a stretch of the Akitkan Range. Geography The Akitkan stretches roughly northwards for ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
North Baikal Highlands
The North Baikal Highlands ( rus, Северо-Байкальское нагорье; bua, Хойто-Байгалай хадалиг газар) '' Great Soviet Encyclopedia'' in 30 vols. — Ch. ed. A.M. Prokhorov. - 3rd ed. - M. Soviet Encyclopedia, 1969-1978.(in Russian) are a mountainous area in , Russia. Administratively the territory of the uplands is part of Buryatia and [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Chechuy
The Chechuy (russian: Чечуй) is a river in Irkutsk Oblast, Russia. It is a tributary of the Lena with a length of and a drainage basin area of . The river flows across an uninhabited area of the Kirensky District. Puschino village is located by the right bank, near the confluence with the Lena and there are other villages in the area, close to the Lena's shore. History Between 1909 and 1911 the North Baikal Highlands were explored by Russian geologist Pavel Preobrazhensky (1874 - 1944). He surveyed the river valleys of the area, all of them tributaries of the Lena basin, including the Chechuy. Course The Chechuy is a right tributary of the Lena. It has its sources in the Akitkan Range of the North Baikal Highlands. It heads first northwestwards across the mountain area. Approximately in mid course, the river turns to the NNE and flows roughly in that direction until it reaches the Lena. Finally it meets the right bank of the Lena from its mouth, near Puschino, a lit ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Kirenga River
The Kirenga () is a river in Irkutsk Oblast in Russia. The name originated in an Evenki word. The length of the river is . The area of its basin is . There are many settlements in the river valley. The Baikal Amur Mainline follows and crosses the Kirenga between Magistralny and Ulkan. Course It is a right tributary of the Lena which flows north between the upper Lena and Lake Baikal. The Kirenga begins in the Baikal Mountains west of Lake Baikal, a few dozen kilometres north of the source of the Lena. The Kirenga marks the eastern limit of the Lena-Angara Plateau. The river flows along the Cis-Baikal Depression, limited by the Akitkan Range to the east. Finally it joins the Lena at the town of Kirensk. The Kirenga is fed mainly by rain. It freezes up in late October to early November and stays under the ice until late April to May. Tributaries Its main tributaries are the Ulkan, Minya, Okunayka and Kutima from the right, as well as the Khanda from the left. [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Chaya (river)
The Chaya (russian: Чая) is a river in Buryatia and Irkutsk Oblast, Russia. It is the 26th longest tributary of the Lena, with a length of and a drainage basin area of .Чая (река, приток р. Лены) '''' in 30 vols. — Ch. ed. A.M. Prokhorov. - 3rd ed. - M. Soviet Encyclopedia, 1969-1978.(in Russian) The Chaya flows across , there are no settlements on the banks of the river. [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Paleoproterozoic
The Paleoproterozoic Era (;, also spelled Palaeoproterozoic), spanning the time period from (2.5–1.6 Ga), is the first of the three sub-divisions ( eras) of the Proterozoic Eon. The Paleoproterozoic is also the longest era of the Earth's geological history. It was during this era that the continents first stabilized. Paleontological evidence suggests that the Earth's rotational rate ~1.8 billion years ago equated to 20-hour days, implying a total of ~450 days per year. Atmosphere Before the enormous increase in atmospheric oxygen, almost all existing lifeforms were anaerobic organisms whose metabolism was based on a form of cellular respiration that did not require oxygen. Free oxygen in large amounts is toxic to most anaerobic organisms. Consequently, most died when the atmospheric free oxygen levels soared in an extinction event called the Great Oxidation Event, which brought atmospheric oxygen levels to up to 10% of their current level. The only creatures that sur ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Baikal Range
The Baikal Mountains or Baikal Range (russian: Байкальский хребет, ''Bajkaljskij hrebet''; bua, Байгалай дабаан, ''Baigalai dabaan'') are a mountain range that rises steeply over the northwestern shore of Lake Baikal in southern Siberia, Russia. The highest peak in the range is 2,572 m high Mount Chersky, named after Russian explorer Ivan Chersky.Природа Байкала - гора Черского Geography The Baikal Mountains are connected with the Primorsky Range to the south, which also stretches along the lakeshore. The Akitka ...[...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Synnyr
Synnyr (russian: Сынныр) is a mountain massif in Irkutsk Oblast and Buryatia, Russian Federation. The range is part of the Baikal Rift Zone.Google Earth There is potash mining in the range at the Synnyr mine. Geography The Synnyr stretches from SW to NE for roughly between the Akitkan Range and the Upper Angara Range, west of the northwestern end of the Stanovoy Highlands, with the Patom Highlands to the north. It is limited by the valleys of the Chaya and Mama rivers. The Chuya, Kholodnaya, Tyya and Olokit have their sources in the range.Северо-Байкальское нагорье '''' in 30 vols. — Ch. ed. [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
South Siberian System
The South Siberian Mountains ( rus, Южно-Сибирские горы) are one of the largest mountain systems of the Russian Federation. The total area of the system of mountain ranges is more than 1.5 million km². The South Siberian Mountains are located in the Siberian and Far Eastern Federal Districts of Russia, as well as partly in Mongolia. The territory of the mountain system is one of the Great Russian Regions. Geography The system is composed of a number of ranges aligned in an east–west direction stretching for almost . Part of them are near the border with Mongolia and China, while others rise further north. To the south the South Siberian ranges merge with the Mongolian and Chinese mountain chains and plateaus. In the west lies the Dzungarian Basin and to the east the Mongolian Plateau. To the north the South Siberian Mountains merge with the West Siberian Lowland and the Central Siberian Plateau, both on the Russian side. To the southeast the Baikal Range is ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Kirenga
The Kirenga () is a river in Irkutsk Oblast in Russia. The name originated in an Evenki word. The length of the river is . The area of its basin is . There are many settlements in the river valley. The Baikal Amur Mainline follows and crosses the Kirenga between Magistralny and Ulkan. Course It is a right tributary of the Lena which flows north between the upper Lena and Lake Baikal. The Kirenga begins in the Baikal Mountains west of Lake Baikal, a few dozen kilometres north of the source of the Lena. The Kirenga marks the eastern limit of the Lena-Angara Plateau. The river flows along the Cis-Baikal Depression, limited by the Akitkan Range to the east. Finally it joins the Lena at the town of Kirensk. The Kirenga is fed mainly by rain. It freezes up in late October to early November and stays under the ice until late April to May. Tributaries Its main tributaries are the Ulkan, Minya, Okunayka and Kutima from the right, as well as the Khanda from the left. [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Lake Baikal
Lake Baikal (, russian: Oзеро Байкал, Ozero Baykal ); mn, Байгал нуур, Baigal nuur) is a rift lake in Russia. It is situated in southern Siberia, between the federal subjects of Irkutsk Oblast to the northwest and the Republic of Buryatia to the southeast. With of water, Lake Baikal is the world's largest freshwater lake by volume, containing 22–23% of the world's fresh surface water, more than all of the North American Great Lakes combined. It is also the world's deepest lake, with a maximum depth of , and the world's oldest lake, at 25–30 million years. At —slightly larger than Belgium—Lake Baikal is the world's seventh-largest lake by surface area. It is among the world's clearest lakes. Lake Baikal is home to thousands of species of plants and animals, many of them endemic to the region. It is also home to Buryat tribes, who raise goats, camels, cattle, sheep, and horses on the eastern side of the lake, where the mean tempera ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
