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Copahue

성층화산 · Chile-Argentina · 2953m

The broad glacier-covered summit of Volcán Copahue along the Chile/Argentina border is seen from the SE with conical Callaqui volcano in the distance. The lake-filled active crater of Copahue (lower center) has been the site of historical eruptions. The composite cone was constructed along the Chile/Argentina border within an 8-km-wide caldera formed 0.6 million years ago. The eastern summit crater is part of a 2-km-long, ENE-WSW line of nine craters that cuts across the western rim of the caldera.
The broad glacier-covered summit of Volcán Copahue along the Chile/Argentina border is seen from the SE with conical Callaqui volcano in the distance. The lake-filled active crater of Copahue (lower center) has been the site of historical eruptions. The composite cone was constructed along the Chile/Argentina border within an 8-km-wide caldera formed 0.6 million years ago. The eastern summit crater is part of a 2-km-long, ENE-WSW line of nine craters that cuts across the western rim of the caldera. · 사진: Photo by Oscar González-Ferrán, 1992 (University of Chile). · Wikimedia Commons
화산 유형
성층화산
국가
Chile-Argentina
지역
South America Volcanic Regions / Southern Andean Volcanic Arc
해발
2953m
좌표
-37.856, -71.183
마지막 분화
2024년
판구조 환경
Subduction zone / Continental crust (> 25 km)
화산 지형
Composite
주요 암석
Trachybasalt / Tephrite Basanite
지질학적 요약

Volcán Copahue is an elongated composite cone constructed along the Chile-Argentina border within the 6.5 x 8.5 km wide Trapa-Trapa caldera that formed between 0.6 and 0.4 million years ago near the NW margin of the 20 x 15 km Pliocene Caviahue (Del Agrio) caldera. The eastern summit crater, part of a 2-km-long, ENE-WSW line of nine craters, contains a briny, acidic 300-m-wide crater lake (also referred to as El Agrio or Del Agrio) and displays intense fumarolic activity. Acidic hot springs occur below the eastern outlet of the crater lake, contributing to the acidity of the Río Agrio, and another geothermal zone is located within Caviahue caldera about 7 km NE of the summit. Infrequent mild-to-moderate explosive eruptions have been recorded since the 18th century. Twentieth-century eruptions from the crater lake have ejected pyroclastic rocks and chilled liquid sulfur fragments.

Wikipedia 요약

영어 요약

Copahue is a stratovolcano in the Andes on the border of Bío Bío Region, Chile and Neuquén Province, Argentina. There are nine volcanic craters along a 2 km (1.2 mi) line, the easternmost of which is historically the most active, and contains a 300 m (1000 ft) wide crater lake with a pH ranging between 0.18 and 0.30. Eruptions from this crater lake have ejected pyroclastic rocks and chilled liquid sulfur fragments. Although the lake emptied during the 2000 eruption, it later returned to its previous levels. Copahue means "sulphur waters" in Mapuche.

Wikipedia · CC BY-SA · 전체 기사 보기 →

분화 이력

요약 (VEI 시계열)
막대를 클릭하면 개별 분화가 표시됩니다
6820 BCE~6525 BCE · 1건 · 최고 VEI ?334 BCE~40 BCE · 1건 · 최고 VEI ?1729~2024 · 20건 · 최고 VEI 26820 BCE4756 BCE2398 BCE334 BCE1729

상세 타임라인

  1. 2024년VEI 1관측 기록
    2024-10-16 ~ 2024-10-27
  2. 2021년VEI 1관측 기록
    2021-07-02 ~ 2021-11-06
  3. 2020년VEI 2관측 기록
    2020-06-16 ~ 2020-11-02
    Agrio Crater
  4. 2019년VEI 2관측 기록
    2019-08-02 ~ 2019-11-12
    Agrio Crater
  5. 2017년VEI 1관측 기록
    2017-06-04 ~ 2018-12-07
    El Agrio Crater
  6. 2015년VEI 2관측 기록
    2015-09-18 ~ 2017-02-22
    Agrio Crater
  7. 2014년VEI 1관측 기록
    2014-07-04 ~ 2014-12-02
    El Agrio Crater
  8. 2012년VEI 2관측 기록
    2012-12-22 ~ 2013-12-10
    Agrio Crater
  9. 2012년VEI 2관측 기록
    2012-07-17 ~ 2012-07-19
    El Agrio Crater
  10. 2000년VEI 2관측 기록
    2000-07-01 ~ 2000-10-18
    Agrio Crater
  11. 1995년VEI 2관측 기록
    1995-09-16 ~ 진행 중
    Agrio Crater
  12. 1994년VEI 2관측 기록
    1994-12-16 ~ 진행 중
    Agrio Crater
  13. 1992년VEI 2관측 기록
    1992-07-22 ~ 1993-07-02
    Agrio Crater
  14. 1961년VEI 2관측 기록
    1961-07-02 ~ 진행 중
  15. 1960년VEI ?관측 기록
    1960-07-02 ~ 진행 중
  16. 1944년VEI ?관측 기록
    1944 ~ 진행 중
  17. 1937년VEI 2관측 기록
    1937 ~ 진행 중
  18. 1867년VEI 2관측 기록
    1867 ~ 진행 중
  19. 1759년VEI ?지질학적 추정
    1759 ~ 진행 중
  20. 1750년VEI 2관측 기록
    1750 ~ 진행 중
  21. 기원전 250년VEI ?지질학적 추정
    BCE 250 ~ 진행 중
  22. 기원전 6820년VEI ?지질학적 추정
    BCE 6820 ~ 진행 중

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