The Composition of Melt Inclusions in Minerals from Tephra of the Soil–Pyroclastic Cover of Simushir Island (Central Kuril Islands)


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Аннотация

The compositions of approximately 70 naturally quenched melt inclusions in olivine, clinopyroxene, orthopyroxene, and plagioclase phenocrysts from tephra of the soil–pyroclastic cover of Simushir Island (Central Kuril Islands) were studied. The concentrations of the major rock-forming components, H2O, S, and Cl were analyzed in inclusions. The reconstructed melts contain 48.6–78.4 wt % SiO2, 0.3–8.26 wt % MgO, and 0.12–1.72 wt % K2O. The concentration of S and Cl in the melts changes regularly with increasing SiO2 content: from 0.14 to ~0.02 wt % S and from ~0.05 to ~0.28 wt % Cl. The content of H2O in parental melts is 4.2–4.5 wt %.

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Авторлар туралы

V. Shcherbakov

Department of Geology

Хат алмасуға жауапты Автор.
Email: vasiliy7@gmail.com
Ресей, Moscow, 119991

N. Nekrylov

Fersman Mineralogical Museum

Email: vasiliy7@gmail.com
Ресей, Moscow, 117071

G. Savostin

Department of Geology

Email: vasiliy7@gmail.com
Ресей, Moscow, 119991

D. Popov

Faculty of Earth Sciences

Email: vasiliy7@gmail.com
Швейцария, Geneva

O. Dirksen

Institute of Volcanology and Seismology, Far East Branch

Email: vasiliy7@gmail.com
Ресей, Petropavlovsk-Kamchatsky, 683006

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