The Timescales of Magma Mixing in the Plumbing System of Bezymianny Volcano (Kamchatka): Insights from Diffusion Chronometry
- Авторлар: Davydova V.O.1, Shcherbakov V.D.1, Plechov P.Y.1,2
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Мекемелер:
- Department of Geology
- Fersman Mineralogical Museum
- Шығарылым: Том 73, № 5 (2018)
- Беттер: 444-450
- Бөлім: Article
- URL: https://journal-vniispk.ru/0145-8752/article/view/174802
- DOI: https://doi.org/10.3103/S0145875218050058
- ID: 174802
Дәйексөз келтіру
Аннотация
Intrusion of magma of contrasting composition into a magma chamber often triggers eruptions of arc volcanoes. Application of the diffusion chronometry method allowed us to determine the time when fresh magma was supplied to the shallow chamber of Bezymianny volcano in the case of six eruptions in 2006–2012 and to compare them to the recorded seismic activity of this volcano. Two types of eruptions of Bezymianny volcano were distinguished, with a contrasting orthopyroxene rim being formed in the respective magmas (a) up to 3 years and (b) up to 2 months before the beginning of an eruption. It was shown that these differences are caused by two different paths of magma supply to the shallow chamber of Bezymianny volcano.
Негізгі сөздер
Авторлар туралы
V. Davydova
Department of Geology
Хат алмасуға жауапты Автор.
Email: vestadav@gmail.com
Ресей, Moscow, 119991
V. Shcherbakov
Department of Geology
Email: vestadav@gmail.com
Ресей, Moscow, 119991
P. Plechov
Department of Geology; Fersman Mineralogical Museum
Email: vestadav@gmail.com
Ресей, Moscow, 119991; Moscow, 119071
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