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

• Published in: Journal of Asian Earth Sciences: X
• Main Authors: Viktor Sharapov, Yuri Semenov, Grigory Kuznetsov, Anatoly Boguslavsky
• Format: Article in Journal/Newspaper
• Language: English
• Published: Elsevier 2022
• Subjects: Kamchatka; Avacha Volcano; Mantle; Xenolith; Spinel; Geology; QE1-996.5; Avacha
• Online Access: https://doi.org/10.1016/j.jaesx.2022.100119; https://doaj.org/article/08f0264fc7c14173a9de85ac559cbae0

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 e...