Water in Parental Basaltic Magmas of Menshyi Brat Volcano (Iturup Island, Kurile Islands)
- 作者: Nizametdinov I.1,2, Kuzmin D.1,2, Smirnov S.1, Rybin A.3, Kulakov I.4
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隶属关系:
- Sobolev Institute of Geology and Mineralogy, Siberian Branch, Russian Academy of Sciences
- Novosibirsk State University
- Institute of Marine Geology and Geophysics, Far East Branch, Russian Academy of Sciences
- Trofimuk Institute of Petroleum Geology and Geophysics, Siberian Branch, Russian Academy of Sciences
- 期: 卷 486, 编号 1 (2019)
- 页面: 525-528
- 栏目: Geochemistry
- URL: https://journals.rcsi.science/1028-334X/article/view/194954
- DOI: https://doi.org/10.1134/S1028334X19050052
- ID: 194954
如何引用文章
详细
Data from the study of minerals of the liquidus association (olivine and spinel) from high-Mg basalts (up to 10 wt % MgO) of Menshyi Brat Volcano (Iturup Island) are reported. Based on these data, it was possible to estimate the water content and to study the evolution of volatile components in the primary basic magmas that formed the Medvezhia Caldera (Irurup Island), for the first time. It is shown that the initial water content in melts could reach 5 wt % at an oxygen fugacity corresponding to the NNO + 0.4 buffer. The further evolution of magmas included continuous degassing at a depth of ≤8 km. Hydrous fluid separated from basic magma could play a significant role in the formation of large crustal chambers of siliceous magma participation in catastrophic caldera eruptions.
作者简介
I. Nizametdinov
Sobolev Institute of Geology and Mineralogy, Siberian Branch, Russian Academy of Sciences; Novosibirsk State University
编辑信件的主要联系方式.
Email: inizametdimov@igm.nsc.ru
俄罗斯联邦, Novosibirsk, 630090; Novosibirsk, 630090
D. Kuzmin
Sobolev Institute of Geology and Mineralogy, Siberian Branch, Russian Academy of Sciences; Novosibirsk State University
Email: inizametdimov@igm.nsc.ru
俄罗斯联邦, Novosibirsk, 630090; Novosibirsk, 630090
S. Smirnov
Sobolev Institute of Geology and Mineralogy, Siberian Branch, Russian Academy of Sciences
Email: inizametdimov@igm.nsc.ru
俄罗斯联邦, Novosibirsk, 630090
A. Rybin
Institute of Marine Geology and Geophysics,Far East Branch, Russian Academy of Sciences
Email: inizametdimov@igm.nsc.ru
俄罗斯联邦,
Yuzhno-Sakhalinsk, 693022
I. Kulakov
Trofimuk Institute of Petroleum Geology and Geophysics, Siberian Branch, Russian Academy of Sciences
Email: inizametdimov@igm.nsc.ru
俄罗斯联邦,
Novosibirsk, 630090