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Balagan-Tas

Coordinates: 65°57′N 145°54′E / 65.95°N 145.9°E / 65.95; 145.9
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Balagan-Tas
Балаган-Тас
Highest point
Elevation993 m (3,258 ft)
Prominence300 m (980 ft)
Coordinates65°57′N 145°54′E / 65.95°N 145.9°E / 65.95; 145.9
Naming
Native name
  • Балаҕан Таас (Yakut)
  • Balaghan Taas (Yakut)
Geography
LocationSakha Republic, Russia
Parent rangeChersky Range
Geology
Rock age266,000 ± 30,000 years
Mountain typeCinder Cone
Last eruption1775

Balagan-Tas (Yakut: Балаҕан Таас, Russian: Балаган-Тас) is a cinder cone volcano in Russia. It was discovered by V.A. Zimin in 1939[1] and is one of the main features of the Moma Natural Park.[2]

Description

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This volcano is located in the Chersky Range,[3] in the Moma River valley and is the only clearly Quaternary volcano in the area; the existence of another volcano active in the 1770s has not been confirmed.[4] The supposed Indighirsky volcano may be actually Balagan-Tas.[5] Its location has often been given incorrectly.[6]

Balagan-Tas is a volcanic cone with a crater of which little remains. It covers a surface area of 1.8 square kilometres (0.69 sq mi).[7] The crater is 200 metres (660 ft) wide and 40 metres (130 ft) deep, the cone is 300 metres (980 ft) high and has a base diameter of 1,200 metres (3,900 ft).[8] It may be considered a composite volcano.[9] The volcano has generated three lava flows which cover a surface area of 45 square kilometres (17 sq mi).[6] They reach a thickness of 10 metres (33 ft).[7]

The volcano has erupted alkali basalts typical for rift zone volcanoes.[6] Its composition has been characterized as hawaiite.[5] Titanium dioxide contents of 3.81% have been measured. The helium-3/helium-4 ratios approach these associated with mantle plumes.[1]

Balagan-Tas lies on an anticline.[10] It is associated with faulting.[11] Further it is related to the Moma-Zoryansk rift and the Gakkel ridge, which extends to the Laptev sea.[12] The De Long Islands and a potentially Quaternary dyke complex of the Viliga river may also be related.[3] This tectonic activity is related to the interaction between the Eurasian Plate and the North American Plate.[13]

Other volcanoes are found in the neighbourhood.[6] Northwest of Balagan-Tas lies the Uraga Khaya volcano;[14] it is located 66°06′N 145°24′E / 66.1°N 145.4°E / 66.1; 145.4 and is a lava dome formed by rhyolite. Its age is unclear, potassium-argon dating has yielded an age of 16.6 mya but its appearance indicates it may be considerably younger. A further volcano may exist northwest of this centre.[6] A liparite dome named Majak is located at 66°27′N 147°09′E / 66.45°N 147.15°E / 66.45; 147.15,[7] but it may be the same as Uraga Khaya and the coordinates wrong.[6]

Potassium-argon dating of Balagan-Tas has yielded an age of 266,000 ± 30,000 years ago, comparable to Anyuj volcano,[15] and may reflect a regional or global pulse of volcanic activity.[16] Other sources consider the volcano late Holocene in age,[17] or even as active during historical time.[1] Hot springs are found southeast of Balagan-Tas. They reach temperatures of 30 °C (86 °F),[18] which together with the other activity indicates a hot upper mantle.[1] If reports of activity of the supposed Indighirsky volcano in the 1770s refer to Balagan-Tas,[7] this volcano may have had historical activity,[7] one of the few outside of Kamchatka in continental Asia.[19]

References

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  1. ^ a b c d Grachev, A. F. (31 October 2003). "The Arctic rift system and the boundary between the Eurasian and North American lithospheric plates: New insight to plate tectonic theory". Russian Journal of Earth Sciences. 5 (5): 307–345. doi:10.2205/2003ES000135. S2CID 129810650.
  2. ^ "Moma Natural Park Official site". Archived from the original on 2019-09-29. Retrieved 2019-11-06.
  3. ^ a b Silantyev, S.A.; Bogdanovskii, O.G.; Fedorov, P.I.; Karpenko, S.F.; Kostitsyn, Yu.A (June 2004). "Intraplate magmatism of the De Long Islands: A response to the propagation of the ultraslow-spreading Gakkel Ridge into the passive continental margin in the Laptev Sea" (PDF). Russian Journal of Earth Sciences. 6 (3): 172. doi:10.2205/2004ES000150. Retrieved 23 September 2016.
  4. ^ Maria Shahgedanova (2002). The Physical Geography of Northern Eurasia. Oxford University Press. p. 300. ISBN 978-0-19-823384-8.
  5. ^ a b Whitford-Stark 1983, p. 199.
  6. ^ a b c d e f Fujita, Cambray & Velbel 1990, p. 110.
  7. ^ a b c d e Whitford-Stark 1987, p. 24.
  8. ^ Whitford-Stark 1987, p. 48.
  9. ^ Whitford-Stark 1987, p. 29.
  10. ^ Whitford-Stark 1983, p. 213.
  11. ^ Matveyenko, V. T.; Shatalov, E. T. (February 1963). "Fractures, Magmatism and Mineralization in the Northeast of the U.s.s R. (Part 1 of 2)". International Geology Review. 5 (2): 153. Bibcode:1963IGRv....5..127M. doi:10.1080/00206816309473762.
  12. ^ Richard E. Ernst; Kenneth L. Buchan (1 January 2001). Mantle Plumes: Their Identification Through Time. Geological Society of America. p. 213. ISBN 978-0-8137-2352-5.
  13. ^ Whitford-Stark 1987, p. 39.
  14. ^ Fujita, Cambray & Velbel 1990, p. 111.
  15. ^ Pevzner, M. M.; Gertsev, D. O.; Romanenko, F. A.; Kushcheva, Yu. V. (6 July 2011). "The first data on isotopic age of Anyui volcano (Chukotka)". Doklady Earth Sciences. 438 (2): 737. Bibcode:2011DokES.438..736P. doi:10.1134/S1028334X11060109. S2CID 128991774.
  16. ^ Pevzner, M. M.; Gertsev, D. O.; Fedorov, P. I.; Romanenko, F. A.; Kushcheva, Yu. V. (January 2017). "Anyui Volcano in Chukotka: Age, structure, pecularities of rocks' composition and eruptions". Lithology and Mineral Resources. 52 (1): 45. Bibcode:2017LitMR..52...20P. doi:10.1134/s0024490217010059. S2CID 132021660.
  17. ^ Whitford-Stark 1987, p. 35.
  18. ^ Fujita, Cambray & Velbel 1990, p. 112.
  19. ^ Whitford-Stark 1987, p. 31.

Sources

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Further reading

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