DOAJ Open Access 2022

Spinel crystals in mantle ultramafic xenoliths as the source of P-T conditions of alteration above the magma chamber beneath the Avacha Volcano (Kamchatka)

Viktor Sharapov Yuri Semenov Grigory Kuznetsov Anatoly Boguslavsky

Abstrak

This study focuses on the ability of spinel crystals in ultramafic xenoliths, like zircon, to store the primary composition and structure when exposed to magma fluid flows or the thermal heating of ultramafic fragments in magma flows during volcanic eruptions. Mantle ultramafic rock xenoliths from explosives of the Avacha Volcano in Kamchatka have different facies of their metasomatic changes above the magma chamber. An alternative hypothesis of their source is from fragments of layered mafic intrusions containing spinels, which store initial petrogenetic records of the original magma melt. Experiments were conducted to prove this idea using a Budker Institute of Nuclear Physics (INP SB RAS) unit. Large scales of change in the composition and structure of spinel crystals were caused by the hot fluids from melted xenolith sites.

Topik & Kata Kunci

Geology

Penulis (4)

Viktor Sharapov

Yuri Semenov

Grigory Kuznetsov

Anatoly Boguslavsky

Format Sitasi

APA MLA BibTeX

Sharapov, V., Semenov, Y., Kuznetsov, G., Boguslavsky, A. (2022). Spinel crystals in mantle ultramafic xenoliths as the source of P-T conditions of alteration above the magma chamber beneath the Avacha Volcano (Kamchatka). https://doi.org/10.1016/j.jaesx.2022.100119

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Informasi Jurnal

Tahun Terbit: 2022
Sumber Database: DOAJ
DOI: 10.1016/j.jaesx.2022.100119
Akses: Open Access ✓