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Usulután

Usulutan

성층화산 · El Salvador · 1449m

Usulután rises above the Pacific coastal plain at the SE end of a cluster of volcanoes between San Vicente and San Miguel. Several valleys have formed on the flanks of, including the one seen in this view of the SW flank. The rounded peak to the left is Cerro Oromontique on the flank of El Tigre volcano.
Usulután rises above the Pacific coastal plain at the SE end of a cluster of volcanoes between San Vicente and San Miguel. Several valleys have formed on the flanks of, including the one seen in this view of the SW flank. The rounded peak to the left is Cerro Oromontique on the flank of El Tigre volcano. · 사진: Photo by Lee Siebert, 1999 (Smithsonian Institution). · Wikimedia Commons
화산 유형
성층화산
국가
El Salvador
지역
중앙아메리카·카리브해 / Central America Volcanic Arc
해발
1449m
좌표
13.419, -88.471
마지막 분화
미확인
판구조 환경
Subduction zone / Continental crust (> 25 km)
화산 지형
Composite
주요 암석
Basalt / Picro-Basalt
지질학적 요약

Usulután volcano anchors the SE end of a cluster of basaltic to basaltic andesite stratovolcanoes between San Vicente and San Miguel volcanoes. The flanks of the forested volcano are dissected, but youthful lava flows are present on its southern flanks. The younger summit rocks of Usulután and the Cerro Nanzal pyroclastic cone on the lower SE flank were mapped as Holocene (Weber and Wiesemann, 1978). A broad 1.3-km-wide crater is breached to the E from the summit to its lower flank.

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