Stati Uniti · Stratovulcano
Mount Dana
Dana
- Tipo
- Stratovulcano
- Altitudine
- 1354 m
- Ultima eruzione
- -1890

- Tipo
- Stratovulcano
- Paese
- Stati Uniti
- Regione
- Nord America / Aleutian Ridge Volcanic Arc
- Altitudine
- 1354 m
- Coordinate
- 55.641, -161.214
- Ultima eruzione
- -1890
- Contesto tettonico
- Zona di subduzione / Crosta continentale (> 25 km)
- Forma vulcanica
- Composito
- Roccia principale
- Andesite / Andesite basaltica
Sintesi geologica
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.
Sintesi da Wikipedia
Riassunto in ingleseMount 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 of a major eruption about 3,840 years ago that produced a pyroclastic flow, which filled valleys south and west of the volcano's crater and reached the sea at Canoe Bay.
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Storia delle eruzioni
1 registrateGlossarioCronologia dettagliata
- 1890 a.C.VEI 5Stima geologica1890 a.C. – fine sconosciuta
Vulcani nelle vicinanze
Link esterni
⚠ Solo a scopo informativo. Non adatto a situazioni di emergenza.