Doña Juana

Dona Juana

성층화산 · Colombia · 4137m

The Doña Juana complex in Colombia is shown in this September 2017 Planet Labs satellite image monthly mosaic (N is at the top; this image is approximately 8 km across). The summit area is shaped by a large scarp that has been infilled by lava domes, which have subsequently undergone collapse events to produce block-and-ash flow deposits. · 사진: Satellite image courtesy of Planet Labs Inc., 2017 (https://www.planet.com/). · Wikimedia Commons

화산 유형: 성층화산
국가: Colombia
지역: South America Volcanic Regions / Northern Andean Volcanic Arc
해발: 4137m
좌표: 1.500, -76.936
마지막 분화: 1906년
판구조 환경: Subduction zone / Continental crust (> 25 km)
화산 지형: Composite
주요 암석: Andesite / Basaltic Andesite

지질학적 요약

The forested Doña Juana stratovolcano contains two calderas, breached to the NE and SW. The summit of the andesitic-dacitic volcano is comprised of a series of post-caldera lava domes. The older caldera, open to the NE, formed during the mid-Holocene, accompanied by voluminous pyroclastic flows. The younger caldera contains the active central cone. The only historical activity took place during a long-term eruption from 1897-1906, when growth of a summit lava dome was accompanied by major pyroclastic flows.

Wikipedia 요약

영어 요약

Doña Juana is a stratovolcano, located within the Doña Juana-Cascabel Volcanic Complex National Natural Park in Nariño, Colombia.

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분화 이력

요약 (VEI 시계열)

막대를 클릭하면 개별 분화가 표시됩니다

상세 타임라인

1897년VEI 4관측 기록
1897-11-01 ~ 1906
기원전 2550년 (±150년)VEI 4지질학적 추정
BCE 2550 ~ 진행 중
Northeastern caldera

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