Mount Dana
Dana
Estratovolcán · United States · 1354 m

- Tipo
- Estratovolcán
- País
- United States
- Región
- América del Norte / 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.
Historial de erupciones
Resumen (VEI en el tiempo)
Haga clic en una barra para ver erupciones individuales
Línea de tiempo detallada
- 1890 a. C.VEI 5Estimación geológicaBCE 1890 – En curso
Enlaces externos
⚠ Solo como referencia. No apto para respuesta ante emergencias.