Taunshits Explained

Taunshits
Elevation M:2301
Elevation Ref:[1]
Prominence M:1498
Prominence Ref:[2]
Map:Russia
Location:Kamchatka, Russia
Coordinates:54.5283°N 159.8042°W
Type:Stratovolcano
Last Eruption:550 BCE[3]

Taunshits (Russian: Тауншиц) is a stratovolcano located in the eastern part of the Kamchatka Peninsula, Russia.

It is part of the Kamchatka-Kurile volcanic arc, and volcanism in this arc is caused by the subduction of the Pacific Plate beneath the Okhotsk Plate.[4] More specifically, volcanic activity at Taunshits relates to a local system of eastward-trending faults, and some additional volcanoes are controlled by the same fault system,[5] such as Uzon and Kikhpinych[6] which lie both east of Taunshits.[7]

Taunshits is a somma volcano and features lava flows, and its summit is formed by a ridge.[8] The stratovolcano contains a collapse crater formed during the Holocene, as well as a lava dome;[9] a viscous lava flow was erupted in the crater and extends down the western flank.[10] Erosion has formed gullies in the slopes of the volcano.[11] Two satellite vents and several cinder cones are found south of the edifice.[12]

Taunshits has principally erupted andesite[13] and basaltic andesite,[9] and its eruption products are calc-alkaline with moderate potassium content.[14] Volcanic activity at Taunshits involves the formation of lava domes and pyroclastic flows, similar to Bezymyanny or Shiveluch,[13] but widespread andesitic lava effusion has also occurred at the lower levels of the edifice.[15]

Activity at Taunshits commenced late during the Pleistocene,[16] [15] less than 39,000 years before present considering that the ignimbrites generated by the Uzon eruption are found beneath lava flows from the volcano.[17] The Pleistocene activity constructed the foot of the volcano, which has tuya characteristics.[18]

Activity decreased during the Holocene.[19] 7,700 years before present, a major eruption ejected about of material;[20] it may have been preceded by the sector collapse.[18] 7,000 years before present, a sector collapse occurred, leaving a hummocky landscape around the volcano; no eruption occurred according to some sources,[21] while others believe that one took place.[18] The landslide extends over a length of and has a volume of less than ;[22] other sources assume a volume of and a length of . The landslide occurred on the western slope of the volcano;[18] Taunshits developed on the western slope of Uzon volcano and the resulting westward tilt of its basement may have predisposed the edifice towards collapsing westward.[23] The landslide is responsible for the formation of the collapse crater on the summit.[24]

Lava flows were extruded about 2,500 years before present,[25] and 2,400 years before present the lava dome in the crater was emplaced; this event was accompanied by pyroclastic flows.[18] The last eruption occurred around 550 BCE;[26], no seismic station is located at Taunshits, which hampers the monitoring of activity at this volcano.[27] Solfataric activity occurs close to the edifice.[8]

See also

Sources

External links

Notes and References

  1. 300160. Taunshits.
  2. http://peaklist.org/WWlists/ultras/Kamchatka1500m.html "Russia: Kamchatka and the Russian Pacific Islands"
  3. 300160. Taunshits.
  4. Zellmer. Georg F.. Some first-order observations on magma transfer from mantle wedge to upper crust at volcanic arcs. Geological Society, London, Special Publications. 1 January 2008. 304. 1. 15–31. 10.1144/SP304.2. en. 0305-8719. 2008GSLSP.304...15Z.
  5. Chapter 1 Recent tectonics of the crust and volcanism in Kamchatka. Bulletin Volcanologique. 1 March 1979. 42. 1–4. 31. 10.1007/BF02597042. English. 0366-483X. 1979BVol...42....9..
  6. Kardanova. O.F.. Firstov. P.P.. Radioactive elements in sediments and altered rocks of the Kikhpinych long-lived volcanic center. Journal of Volcanology and Seismology. 1 April 2009. 3. 2. 90. 10.1134/S0742046309020031. 128995732 . English. 0742-0463.
  7. Kugaenko. Yu A.. Saltykov. V. A.. Gorbatikov. A. V.. Stepanova. M. Yu. The model of the Uzon-Geizernaya volcano-tectonic depression and Kikhpinych volcano, Kamchatka, from the joint analysis of microseismic sounding data and local geodynamic activity. Izvestiya, Physics of the Solid Earth. 1 May 2015. 51. 3. 404. 10.1134/S106935131503009X. en. 1069-3513. 2015IzPSE..51..403K. 127818283 .
  8. KRIJANOVSKY. N.. Volcanoes of KamchatkaCompiled and Translated from Russian Sources. GSA Bulletin. 30 June 1934. 45. 3. 545. 10.1130/GSAB-45-529. en. 0016-7606. 1934GSAB...45..529K.
  9. Book: Ponomareva. Vera. Melekestsev. Ivan. Braitseva. Olga. Churikova. Tatiana. Pevzner. Maria. Sulerzhitsky. Leopold. Volcanism and Subduction: The Kamchatka Region. 172. 2007. 170. 10.1029/172gm15. en. 2007GMS...172..165P. Geophysical Monograph Series. 978-0-87590-436-8. http://repo.kscnet.ru/1039/1/Ponomareva%202007.pdf. Late Pleistocene-Holocene volcanism on the Kamchatka Peninsula, Northwest Pacific Region.
  10. 300160. Taunshits.
  11. Melekestsev. I. V.. Ages and Dynamics of Development of the Active Volcanoes of the Kurile-Kamchatka Region. Braytseva. O. A.. Ponomareva. V. V.. Sulerzhitskiy. L. D.. International Geology Review. May 1990. 32. 5. 437. 10.1080/00206819009465789. 1990IGRv...32..436M.
  12. 300160. Taunshits.
  13. Chapter 1 Recent tectonics of the crust and volcanism in Kamchatka. Bulletin Volcanologique. 1 March 1979. 42. 1–4. 65. 10.1007/BF02597042. English. 0366-483X. 1979BVol...42....9..
  14. Volynets. O. N.. Ponomareva. V. V.. Tsyurupa. A. A.. Petrological and Tephrochronological Studies of Krasheninnikov Volcano, Kamchatka. International Geology Review. 1 November 1989. 31. 11. 1107–1122. 10.1080/00206818909465964. 0020-6814. 1989IGRv...31.1107V.
  15. Chapter 1 Recent tectonics of the crust and volcanism in Kamchatka. Bulletin Volcanologique. 1 March 1979. 42. 1–4. 107. 10.1007/BF02597042. English. 0366-483X. 1979BVol...42....9..
  16. Braitseva. O. A.. Melekestsev. I. V.. Ponomareva. V. V.. Sulerzhitsky. L. D.. Ages of calderas, large explosive craters and active volcanoes in the Kuril-Kamchatka region, Russia. Bulletin of Volcanology. 1 December 1995. 57. 6. 385. 10.1007/BF00300984. en. 0258-8900. 1995BVol...57..383B.
  17. Braitseva. O. A.. Melekestsev. I. V.. Ponomareva. V. V.. Sulerzhitsky. L. D.. Ages of calderas, large explosive craters and active volcanoes in the Kuril-Kamchatka region, Russia. Bulletin of Volcanology. 1 December 1995. 57. 6. 400. 10.1007/BF00300984. en. 0258-8900. 1995BVol...57..383B.
  18. Ponomareva. Vera V.. Melekestsev. Ivan V.. Dirksen. Oleg V.. Sector collapses and large landslides on Late Pleistocene–Holocene volcanoes in Kamchatka, Russia. Journal of Volcanology and Geothermal Research. 1 November 2006. 158. 1. 127–128. 10.1016/j.jvolgeores.2006.04.016. 2006JVGR..158..117P.
  19. Melekestsev. I. V.. Ages and Dynamics of Development of the Active Volcanoes of the Kurile-Kamchatka Region. Braytseva. O. A.. Ponomareva. V. V.. Sulerzhitskiy. L. D.. International Geology Review. May 1990. 32. 5. 446. 10.1080/00206819009465789. 1990IGRv...32..436M.
  20. Bazanova. L. I.. Melekestsev. I. V.. Ponomareva. V. V.. Dirksen. O. V.. Dirksen. V. G.. Late Pleistocene and Holocene volcanic catastrophes in Kamchatka and in the Kuril Islands. Part 1. Types and classes of catastrophic eruptions as the leading components of volcanic catastrophism. Journal of Volcanology and Seismology. 1 May 2016. 10. 3. 154. 10.1134/S0742046316030027. 133034011 . en. 0742-0463.
  21. Web site: Belousova. Marina. Belousov. Alexander. Large - scale landslides at volcanoes in Kuril - Kamchatka region. kcs.dvo.ru. 5 December 2017.
  22. Siebert. Lee. Large volcanic debris avalanches: Characteristics of source areas, deposits, and associated eruptions. Journal of Volcanology and Geothermal Research. 1 October 1984. 22. 3. 178. 10.1016/0377-0273(84)90002-7. 1984JVGR...22..163S.
  23. Web site: Leonov. V.L.. Lineaments, Tectonic Fractures, and Mechanical Behavior of Klyuchevskoi Volcano. www.kscnet.ru. 5 December 2017. 641. 1993. Institute of Volcanology and Seismology Far Eastern Branch.
  24. 300160. Taunshits.
  25. Solomina. Olga. Calkin. Parker E.. Lichenometry as Applied to Moraines in Alaska, U.S.A., and Kamchatka, Russia. Arctic, Antarctic, and Alpine Research. May 2003. 35. 2. 134. 10.1657/1523-0430(2003)035[0129:laatmi]2.0.co;2.
  26. 300160. Taunshits.
  27. Girina. O.A.. On precursor of Kamchatkan volcanoes eruptions based on data from satellite monitoring. Journal of Volcanology and Seismology. 1 May 2012. 6. 3. 144. 10.1134/S0742046312030049. English. 0742-0463.

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