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Moscow University Geology Bulletin

, Volume 73, Issue 1, pp 31–42 | Cite as

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

  • V. D. ShcherbakovEmail author
  • N. A. Nekrylov
  • G. G. Savostin
  • D. V. Popov
  • O. V. Dirksen
Article
  • 31 Downloads

Abstract

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 %.

Keywords

melt inclusions volatiles Simushir Kuril Islands 

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Copyright information

© Allerton Press, Inc. 2018

Authors and Affiliations

  • V. D. Shcherbakov
    • 1
    Email author
  • N. A. Nekrylov
    • 2
  • G. G. Savostin
    • 1
  • D. V. Popov
    • 3
  • O. V. Dirksen
    • 4
  1. 1.Department of GeologyMoscow State UniversityMoscowRussia
  2. 2.Fersman Mineralogical MuseumRussian Academy of SciencesMoscowRussia
  3. 3.Faculty of Earth SciencesUniversity of GenevaGenevaSwitzerland
  4. 4.Institute of Volcanology and Seismology, Far East BranchRussian Academy of SciencesPetropavlovsk-KamchatskyRussia

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