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Stati Uniti · Stratovulcano

Mount Dana

Dana

Tipo
Stratovulcano
Altitudine
1354 m
Ultima eruzione
-1890
Mount Dana
Foto: USGS · Public domain · Wikimedia Commons
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 inglese

Mount 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 registrateGlossario
Riepilogo (VEI nel tempo)
Fai clic su una barra per vedere le singole eruzioni · Usa le frecce per spostarti tra le barre, Invio per aprire
1890 a.C.~1890 a.C. · 1 eruzioni · VEI max. 51890 a.C.1890 a.C.1889 a.C.1889 a.C.1889 a.C.

Cronologia dettagliata

  1. 1890 a.C.VEI 5Stima geologica
    1890 a.C. – fine sconosciuta

Vulcani nelle vicinanze

Link esterni

⚠ Solo a scopo informativo. Non adatto a situazioni di emergenza.