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Yanteles

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Yanteles
Yantales[1]
Aerial view of one of the Yanteles volcano's major peaks
Highest point
Coordinates43°28′08″S 72°46′55″W / 43.469°S 72.782°W / -43.469; -72.782[2]
Geography
Map
LocationChile
Parent rangeAndes
Geology
Mountain typeStratovolcano
Last eruption6650 BCE (?)

Yanteles is an isolated stratovolcano composed of five glacier-capped peaks along an 8 km-long NE-trending ridge. It is located approximately 30 km (19 mi) south of the Corcovado volcano in the Chilean X Region (de Los Lagos) within the Corcovado National Park. The name Yanteles can refer only to the main summit, which is also known as Volcán Nevado (Spanish for "Snow-covered Volcano").

Geography and geology

The volcano lies in the Chaitén municipality, Palena region, Los Lagos Region of Chile. Villa Santa Lucía and Bahía Tic-Toc are the closest settlements to the volcano,[3] while Chaitén is 60 kilometres (37 mi) away.[4] The elongated edifice is 2,042 metres (6,699 ft),[5] 1,790 metres (5,870 ft)[4] or 1,971 metres (6,467 ft) high and covers an area of 84.5 square kilometres (32.6 sq mi), making it a large volcano. Three stratovolcanoes developed on a north-south trending fault[3] and five peaks form a ridge trending northeastward.[5] Volcanoes like Yanteles form the highest summits of the Andes at these latitudes.[6] It also features a caldera with a pyroclastic cone.[7] Eroded peaks occur in the vicinity[2] and Nevado and Yeli are volcanic necks associated with the system.[7] Another major fault in the region is the Melimoyu-Yanteles Fault.[8]

It is covered by sizeable glaciers,[3] which with an area of 46.24 square kilometres (17.85 sq mi) (As of 2007) form one of the largest areas of ice in the region. It has been declining at a rate of 0.72 square kilometres per year (0.28 sq mi/a).[9]

Yanteles has erupted basaltic andesite.[3] The volcano is geologically part of the Southern Volcanic Zone of the Andes.[10]

History and hazards

The volcano was active in the Pleistocene-Holocene and the last major eruption was 6,650 BCE.[3] The volcano is considered to be a source of tephra layers[4] such as the 7,240±150 BCE eruption that produced the YAN1 tephra.[11]Another eruption took place 10,340±180 years before present.[12] One tephra in the Siple Dome of Antarctica[13] and tephras found in Patagonian lakes may come from Yanteles.[10]

Yanteles is little known,[4] but attested in a 1899 publication[14] and was known to be a volcano as far back as 1916.[15] The occurrence of historical eruptions is uncertain;[5] Yanteles reportedly[16] erupted a day after the 1835 Concepcion earthquake and activity continued for months,[17] but little is known about this activity[4] and its description as patches of bare rock or the disappearance of snow makes the record doubtful;[18] such a change could constitute landsliding instead.[19] Later activity is limited to fumarolic activity in 1982, 1992 and 1993-1995.[3] Two fumarolic areas were reported in 1993 on the ridge, 2 kilometres (1.2 mi) from each other, and were emitting yellow-to-white steam.[20]

Future eruptions could cause mudflows in the valleys around the volcano.[3] It was classified as a type III volcano by SERNAGEOMIN, implying an intermediate volcanic hazard.[21]

See also

References

  1. ^ GVP 2022, Synonyms & Subfeatures.
  2. ^ a b GVP 2022, General information.
  3. ^ a b c d e f g SERNAGEOMIN, 1.
  4. ^ a b c d e GVP 2022, General Information.
  5. ^ A. et al. 2019, p. 613.
  6. ^ a b Corbella & Lara 2008, p. 101.
  7. ^ Hauser 1989, p. 234.
  8. ^ Rivera & Bown 2013, p. 252.
  9. ^ a b Fagel et al. 2017, p. 1227.
  10. ^ GVP 2022, Eruptive History.
  11. ^ Vanderstraeten et al. 2023, p. 15.
  12. ^ Kurbatov et al. 2006, p. 9.
  13. ^ Delachaux 1899, Figure between p.48-p.49.
  14. ^ González Acha de Correa Morales 1916, p. 126.
  15. ^ Manga & Brodsky 2006, p. 264.
  16. ^ Mora-Stock et al. 2014, p. 2016.
  17. ^ Watt, Pyle & Mather 2009, p. 402.
  18. ^ Lara, Orozco & Piña-Gauthier 2012, p. 109.
  19. ^ GVP 2022, Bulletin Reports.
  20. ^ SERNAGEOMIN 2020, 1.
  • González-Ferrán, Oscar (1995). Volcanes de Chile. Santiago, Chile: Instituto Geográfico Militar. p. 640 pp. ISBN 956-202-054-1. (in Spanish; also includes volcanoes of Argentina, Bolivia, and Peru)
  • Siebert L, Simkin T (2002–present). Volcanoes of the World: an Illustrated Catalog of Holocene Volcanoes and their Eruptions. Smithsonian Institution, Global Volcanism Program Digital Information Series, GVP-3 (http://www.volcano.si.edu).

Sources

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