Taunshits
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Taunshits (Template:Langx) 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.[1] 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,[2] such as Uzon and Kikhpinych[3] which lie both east of Taunshits.[4]
Taunshits is a somma volcano and features lava flows, and its summit is formed by a ridge.[5] The stratovolcano contains a collapse crater formed during the Holocene, as well as a lava dome;[6] a viscous lava flow was erupted in the crater and extends down the western flank.[7] Erosion has formed gullies in the slopes of the volcano.[8] Two satellite vents and several cinder cones are found south of the edifice.[7]
Taunshits has principally erupted andesite[9] and basaltic andesite,[6] and its eruption products are calc-alkaline with moderate potassium content.[10] Volcanic activity at Taunshits involves the formation of lava domes and pyroclastic flows, similar to Bezymyanny or Shiveluch,[9] but widespread andesitic lava effusion has also occurred at the lower levels of the edifice.[11]
Activity at Taunshits commenced late during the Pleistocene,[12][11] less than 39,000 years before present considering that the ignimbrites generated by the Uzon eruption are found beneath lava flows from the volcano.[13] The Pleistocene activity constructed the foot of the volcano, which has tuya characteristics.[14]
Activity decreased during the Holocene.[15] 7,700 years before present, a major eruption ejected about Script error: No such module "convert". of material;[16] it may have been preceded by the sector collapse.[14] 7,000 years before present, a sector collapse occurred, leaving a hummocky landscape around the volcano; no eruption occurred according to some sources,[17] while others believe that one took place.[14] The landslide extends over a length of Script error: No such module "convert". and has a volume of less than Script error: No such module "convert".;[18] other sources assume a volume of Script error: No such module "convert". and a length of Script error: No such module "convert".. The landslide occurred on the western slope of the volcano;[14] 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.[19] The landslide is responsible for the formation of the collapse crater on the summit.[7]
Lava flows were extruded about 2,500 years before present,[20] and 2,400 years before present the lava dome in the crater was emplaced; this event was accompanied by pyroclastic flows.[14] The last eruption occurred around 550 BCE;[7] since 2012[update]Template:Dated maintenance category (articles)Script error: No such module "Check for unknown parameters"., no seismic station is located at Taunshits, which hampers the monitoring of activity at this volcano.[21] Solfataric activity occurs close to the edifice.[5]
See also
References
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