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New perspectives on the eruption of 1912 in the valley of ten thousand smokes, Katmai National Park, Alaska

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New perspectives on the eruption of 1912 in the valley of ten thousand smokes, Katmai National Park, Alaska; 1987; Article; Journal; Bulletin of Volcanology; Hildreth, W.

Summary

New data extend our understanding of the 1912 eruption, its backfilled vent complex at Novarupta, and magma-storage systems beneath adjacent stratovolcanoes. Initial Plinian rhyolite fallout is confined to a narrow downwind sector, and its maximum thickness may occur as far as 13 km from source. In contrast, the partly contemporaneous rhyolite-rich ash flows underwent relatively low-energy emplacement, their generation evidently being decoupled from the high column. Flow veneers 1-13 m thick on near-vent ridge crests exhibit a general rhyolite-to-andesite sequence like that of the much thicker valley-confined ignimbrite into which they merge downslope. Lithics in both the initial Plinian and the ignimbrite are predominantly fragments [...]

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W. Hildreth

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Type Scheme Key
local-index unknown 70014191
local-pk unknown 70014191
doi http://www.loc.gov/standards/mods/mods-outline-3-5.html#identifier doi:10.1007/BF01080359
series unknown Bulletin of Volcanology

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citationTypeArticle
journalBulletin of Volcanology
languageEnglish
parts
typevolume
value49
typeissue
value5
typePublication Place
valueSpringer-Verlag

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