Holocene catastrophic caldera-forming eruptions of Ksudach volcano, Kamchatka

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dc.contributor.author Melekestsev I.V.
dc.contributor.author Braitseva O.A.
dc.contributor.author Ponomareva V.V.
dc.contributor.author Sulerzhitskiy L.D.
dc.date.accessioned 2019-08-29T10:27:29Z
dc.date.available 2019-08-29T10:27:29Z
dc.date.issued 1996
dc.identifier http://repo.kscnet.ru/1113/
dc.identifier.citation Melekestsev I.V., Braitseva O.A., Ponomareva V.V., Sulerzhitskiy L.D. (1996) Holocene catastrophic caldera-forming eruptions of Ksudach volcano, Kamchatka // Volcanology and Seismology. Vol. 17, No. 4-5. pp. 395-422.
dc.identifier.uri https://repository.geologyscience.ru/handle/123456789/4319
dc.description.abstract Four Plinian eruptions of Ksudach have been reconstructed and dated by the carbon-14 method. The eruptions produced three collapse calderas: the KS1 eruption formed Caldera V 1700-1800 years ago, the KS2 and KS3 events produced Caldera IV 6000-6100 years ago, and the KS4 eruption formed Caldera III 8700-8800 years ago. The most violent eruption was the KS1 event. The sizes of the calderas were 4 × 6.5 km (V), 5 × 6 km (IV), and presumably 2-3 km across (III). Juvenile material was erupted in a rhythmic manner. The composition of the products was dominated by andesite (KS2 and KS4), dacite and rhyodacite (KS3), and rhyodacite (KS1). It is assumed that all caldera-forming eruptions were triggered by the injection of a new portion of high-temperature basic magma and its mixing with the cooling acid magma of the preexisting source. -from Journal summary
dc.language.iso en
dc.subject 38.37.25 Вулканология
dc.subject Ксудач
dc.title Holocene catastrophic caldera-forming eruptions of Ksudach volcano, Kamchatka
dc.type Статья


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