Akitkan
Акиткан
Akitkan Range ONC map section
Highest point
PeakUnnamed
Elevation2,067 m (6,781 ft)
Coordinates56°14′N 108°49′E / 56.233°N 108.817°E / 56.233; 108.817
Dimensions
Length200 km (120 mi) SSW / NNE
Width60 km (37 mi)
Geography
Akitkan Range is located in Irkutsk Oblast
Akitkan Range
Location in Irkutsk Oblast
Akitkan Range is located in Republic of Buryatia
Akitkan Range
Akitkan Range (Republic of Buryatia)
CountryRussia
Federal subjectBuryatia /
Irkutsk Oblast
Range coordinates56°50′N 109°0′E / 56.833°N 109.000°E / 56.833; 109.000
Parent rangeNorth Baikal Highlands
South Siberian System
Geology
Type of rockGranite, volcanic rock
Climbing
Easiest routeFrom Mama Airport

The Akitkan Range (Russian: хребет Акиткан; Chinese: 阿基特坎山) is a mountain range in Irkutsk Oblast and Buryatia, Russian Federation.[1]

The Paleoproterozoic Akitkan Orogen is named after the range.[2]

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.[3]

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.[4] Overcoming numerous difficulties, Preobrazhensky managed to map for the first time a 175 kilometers (109 mi) stretch of the Akitkan Range.[5]

Geography

The Akitkan stretches roughly northwards for over 200 kilometres (120 mi) from the northern end of the Baikal Range, northwest of Lake Baikal. It is limited by the Cis-Baikal Depression (предбайкальская впадина) to the west, the Lena to the north and the Chaya river valley to the east.[6] To the southeast rises the Synnyr. The highest summit is a 2,067 metres (6,781 ft) high unnamed peak located at the southern end, west of the Ungdar Range. The heights of the range summits decrease from circa 2,000 metres (6,600 ft) in the southern section to 1,600 metres (5,200 ft) in the northern.[7]

Hydrography

The Chechuy, a Lena tributary, as well as numerous tributaries of the Kirenga, such as the Minya, Okunayka and Kutima, have their sources in the range.[7]

Akitkan Orogen

The Akitkan Orogen forms a suture between the Anabar Shield to the northwest and the Aldan Shield to the southeast.[8][9] It is a feature of the Siberian Craton known only from geophysical data along most of its extent because it is covered by younger rocks.[10]

See also

References

  1. ↑ Google Earth
  2. ↑ Paleoproterozoic magmatic and metamorphic events link Yangtze to northwest Laurentia in the Nuna supercontinent
  3. ↑ Magidovich, IP and Magidovich, VI. Essays on the History of Geographical Discoveries, 3rd ed. in 5 volumes, M., 1982 - 86, Vol. 4 Geographical discoveries and researches of the Modern Era (XIX - the beginning of the XX century), M., 1985, pp. 60, 95 - 96.
  4. ↑ Физическая география СССР - Байкальско-Становая область
  5. ↑ Preobrazhensky, Pavel Ivanovich — "Historical Encyclopedia of Siberia" (2009)
  6. ↑ Тектоническое строение и рельеф Иркутской области
  7. 1 2 "Топографска карта O-49; M 1:1 000 000 - Topographic USSR Chart (in Russian)". Retrieved 15 April 2022.
  8. ↑ Schematic map of ancient terrains and kimberlitic fields in the Siberian craton
  9. ↑ Schematic map of the Siberian craton showing boundaries of the craton and its terranes
  10. ↑ John J. W. Rogers, M. Santosh, Madhava Warrier Santosh, Continents and Supercontinents, p. 230
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