Mount Dana
Dana
Estratovolcán · United States · 1354 m

- Tipo
- Estratovolcán
- País
- United States
- Región
- North America Volcanic Regions / Aleutian Ridge Volcanic Arc
- Altitud
- 1354 m
- Coordenadas
- 55.641, -161.214
- Última erupción
- -1890
- Contexto tectónico
- Subduction zone / Continental crust (> 25 km)
- Forma volcánica
- Composite
- Roca principal
- Andesite / Basaltic Andesite
Resumen geológico
Mount Dana is a small calc-alkaline volcano NE of Canoe Bay inlet at the head of Pavlof Bay consisting of an apron of volcaniclastic debris surrounding a central dome complex. The high point is located at the north rim of a 1.5 x 2 km crater, whose SW rim exposes Mesozoic sedimentary rocks. Andesitic lava domes occur on the west crater rim and as a small mound east of Knutson Lake inside the crater. Dana is the source of a mid-Holocene block-and-ash flow that reached the sea at Canoe Bay. No historical eruptions are known, but a 200-m-wide tufa mound and several cold springs are located on the SW flank.
Resumen de Wikipedia
Resumen en inglésMount Dana is a small stratovolcano of the Alaska Peninsula, United States, located northeast of Canoe Bay inlet at the head of Pavlof Bay. It was the source for a major eruption about 3840 years ago that produced a pyroclastic flow that filled valleys south and west of the volcano's crater and reached the sea at Canoe Bay.
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Historial de erupciones
Línea de tiempo detallada
- 1890 a. C.VEI 5Estimación geológicaBCE 1890 – En curso
Enlaces externos
⚠ Solo como referencia. No apto para respuesta ante emergencias.