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Nevados de Chillán

Chillan, Nevados de

성층화산 · Chile · 3180m

Volcán Nuevo, the newest cone of the three-peaked Nevados de Chillán volcano, was formed beginning in 1861. It grew between Cerro Blanco and Volcán Viejo, which anchor the NW and SE ends of the complex, respectively. Volcán Nuevo has been the most active volcano of the complex since its birth. In 1973, the year of this photo, a long-term eruption began on the SE flank of Volcán Nuevo, producing a cone that by 1987 had grown above Volcán Nuevo. Nevados de Chillán is one of the most active volcanoes of the Central Andes of Chile.
Volcán Nuevo, the newest cone of the three-peaked Nevados de Chillán volcano, was formed beginning in 1861. It grew between Cerro Blanco and Volcán Viejo, which anchor the NW and SE ends of the complex, respectively. Volcán Nuevo has been the most active volcano of the complex since its birth. In 1973, the year of this photo, a long-term eruption began on the SE flank of Volcán Nuevo, producing a cone that by 1987 had grown above Volcán Nuevo. Nevados de Chillán is one of the most active volcanoes of the Central Andes of Chile. · 사진: Photo by Hugo Moreno, 1973 (University of Chile). · Wikimedia Commons
화산 유형
성층화산
국가
Chile
지역
South America Volcanic Regions / Southern Andean Volcanic Arc
해발
3180m
좌표
-36.868, -71.378
마지막 분화
2022년
판구조 환경
Subduction zone / Continental crust (> 25 km)
화산 지형
Composite
주요 암석
Andesite / Basaltic Andesite
지질학적 요약

The compound volcano of Nevados de Chillán is one of the most active of the Central Andes. Three late-Pleistocene to Holocene stratovolcanoes were constructed along a NNW-SSE line within three nested Pleistocene calderas, which produced ignimbrite sheets extending more than 100 km into the Central Depression of Chile. The dominantly andesitic Cerro Blanco (Volcán Nevado) stratovolcano is located at the NW end of the massif. Volcán Viejo (Volcán Chillán), which was the main active vent during the 17th-19th centuries, occupies the SE end. The Volcán Nuevo lava-dome complex formed during 1906-1945 on the NW flank of Viejo. The Volcán Arrau dome complex was then constructed on the SE side of Volcán Nuevo between 1973 and 1986, and eventually exceeded its height. Smaller domes or cones are present in the 5-km valley between the two major edifices.

Wikipedia 요약

영어 요약

Nevados de Chillán is a group of stratovolcanoes located in the Andes of Ñuble Region, Central Chile, and is one of the most active volcanoes in the region. It consists of three overlapping peaks, 3,212 m (10,538 ft) Cerro Blanco in the northwest and 3,089 m (10,135 ft) Volcán Viejo in the southeast, with Volcán Nuevo in the middle. Volcán Viejo was the main active vent during the 17th-19th centuries, and the new Volcán Nuevo lava dome complex formed between 1906 and 1945, eventually growing to exceed Viejo in height by the mid-1980s.

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분화 이력

요약 (VEI 시계열)
막대를 클릭하면 개별 분화가 표시됩니다
6890 BCE~6593 BCE · 1건 · 최고 VEI ?3921 BCE~3624 BCE · 1건 · 최고 VEI ?1546 BCE~1250 BCE · 1건 · 최고 VEI ?359 BCE~62 BCE · 1건 · 최고 VEI ?1422~1719 · 1건 · 최고 VEI 31719~2016 · 27건 · 최고 VEI 36890 BCE4812 BCE2437 BCE359 BCE1719

상세 타임라인

  1. 2016년VEI 2관측 기록
    2016-01-08 ~ 2022-10-17
    Nicanor crater
  2. 2009년VEI ?지질학적 추정
    2009-01-21 ~ 2009-01-22
  3. 2003년VEI 1관측 기록
    2003-08-29 ~ 2003-09-15
    Saddle between Nuevo & Arrau volcanoes
  4. 1973년VEI 2관측 기록
    1973-07-16 ~ 1986-07-02
    Volcán Arrau (SE flank of Volcán Nuevo)
  5. 1972년VEI ?지질학적 추정
    1972-07-02 ~ 진행 중
    Volcán Nuevo
  6. 1965년VEI ?지질학적 추정
    1965-07-02 ~ 진행 중
    Volcán Nuevo
  7. 1946년VEI 2관측 기록
    1946 ~ 1947
    Volcán Nuevo
  8. 1945년VEI ?지질학적 추정
    1945 ~ 진행 중
    Volcán Nuevo
  9. 1935년VEI 2관측 기록
    1935-07-02 ~ 진행 중
    West flank of Volcán Viejo
  10. 1934년VEI 2관측 기록
    1934-01-17 ~ 진행 중
    Volcán Nuevo
  11. 1928년VEI 2관측 기록
    1928-11-30 ~ 1929
    Volcán Nuevo
  12. 1927년VEI 2관측 기록
    1927-04-10 ~ 진행 중
    Volcán Nuevo
  13. 1923년VEI 2지질학적 추정
    1923 ~ 진행 중
    Volcán Nuevo
  14. 1914년VEI 2관측 기록
    1914 ~ 진행 중
    Volcán Nuevo
  15. 1907년VEI 1관측 기록
    1907 ~ 진행 중
    Volcán Nuevo
  16. 1906년VEI 2관측 기록
    1906-08-06 ~ 1906-12
    Volcán Nuevo
  17. 1898년VEI 2관측 기록
    1898 ~ 진행 중
    Volcán Viejo
  18. 1893년VEI 2관측 기록
    1893-03-04 ~ 진행 중
    Volcán Viejo
  19. 1891년VEI 2관측 기록
    1891-02 ~ 진행 중
    Volcán Viejo
  20. 1883년VEI 2지질학적 추정
    1883-01-21 ~ 진행 중
    Volcán Viejo (Volcán las Aguilas?)
  21. 1877년VEI 2관측 기록
    1877-02-12 ~ 진행 중
    Volcán Chillán
  22. 1872년VEI 2관측 기록
    1872-07-22 ~ 진행 중
    Volcán Chillán
  23. 1864년VEI 3관측 기록
    1864-11-30 ~ 1865-02-03
    NW flank of Cerro Blanco (Santa Gertrudis)
  24. 1861년VEI 2관측 기록
    1861-06 ~ 1863
    NW flank of Cerro Blanco (Santa Gertrudis)
  25. 1860년VEI 2관측 기록
    1860-07-25 ~ 진행 중
    W flank of Volcán Viejo (Volcán Renegado)
  26. 1752년VEI 2관측 기록
    1752-01-30 ~ 진행 중
    Cerro Blanco and Volcán Viejo?
  27. 1749년VEI 3관측 기록
    1749 ~ 1751
    Volcán Viejo
  28. 1650년 (±50년)VEI 3관측 기록
    1650 ~ 진행 중
    Volcán Viejo
  29. 기원전 320년 (±75년)VEI ?지질학적 추정
    BCE 320 ~ 진행 중
    Volcán Viejo
  30. 기원전 1510년 (±50년)VEI ?지질학적 추정
    BCE 1510 ~ 진행 중
    Volcán Viejo
  31. 기원전 3660년 (±500년)VEI ?지질학적 추정
    BCE 3660 ~ 진행 중
    Volcán Viejo
  32. 기원전 6890년 (±500년)VEI ?지질학적 추정
    BCE 6890 ~ 진행 중
    Volcán Viejo

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