Earth:Balagan-Tas

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Balagan-Tas
Балаган-Тас
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Highest point
Elevation993 m (3,258 ft)
Prominence300 m (980 ft)
CoordinatesTemplate:Coord/display/intitle 
Naming
Native name
  • Балаҕан Таас (Yakut)
  • Balaghan Taas (Yakut)
Geography
LocationSakha Republic, Russia
Parent rangeChersky Range
Geology
Age of rock266,000 ± 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

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] Other sources consider the volcano late Holocene in age,[16] or even as active during historical time.[1] Hot springs are found southeast of Balagan-Tas. They reach temperatures of 30 °C (86 °F),[17] 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.[18]

References

  1. ↑ 1.0 1.1 1.2 1.3 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. 
  2. ↑ "Moma Natural Park Official site". http://parkmomsky.com/?page_id=2&lang=ru. 
  3. ↑ 3.0 3.1 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". Russian Journal of Earth Sciences 6 (3): 172. doi:10.2205/2004ES000150. http://elpub.wdcb.ru/journals/rjes/v06/tje04150/tje04150.pdf?. 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. https://books.google.com/books?id=3VznhD-4A_IC&pg=PA284. 
  5. ↑ 5.0 5.1 Whitford-Stark 1983, p. 199.
  6. ↑ 6.0 6.1 6.2 6.3 6.4 6.5 Fujita, Cambray & Velbel 1990, p. 110.
  7. ↑ 7.0 7.1 7.2 7.3 7.4 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. doi:10.1080/00206816309473762. Bibcode: 1963IGRv....5..127M. 
  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. https://books.google.com/books?id=X4W9aGXDa9cC&pg=PA183. 
  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. doi:10.1134/S1028334X11060109. Bibcode: 2011DokES.438..736P. https://zenodo.org/record/1042759. 
  16. ↑ Whitford-Stark 1987, p. 35.
  17. ↑ Fujita, Cambray & Velbel 1990, p. 112.
  18. ↑ Whitford-Stark 1987, p. 31.

Sources

Further reading



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