Silica Polymorphs Formation in the Jänisjärvi Impact Structure: Tridymite, Cristobalite, Quartz, Trace Stishovite and Coesite

• Main Authors: Daria A. Zamiatina, Dmitry A. Zamyatin, Georgii B. Mikhalevskii, Nikolai S. Chebikin
• Format: Article in Journal/Newspaper
• Language: English
• Published: MDPI AG 2023
• Subjects: tridymite; cristobalite; ballen quartz; trace stishovite; trace coesite; impact melt rock; Mineralogy; QE351-399.2; Ballen; Jänisjärvi; karelia*
• Online Access: https://doi.org/10.3390/min13050686; https://doaj.org/article/e49ef2e498254760b39c5670e4946c13

The study of silica polymorphs in impactites is important for determining the pressure and temperature of impact rock formation. Silica modifications in impact melt rocks of the Janisjärvi impact structure (Karelia, Russia) are presented by tridymite, cristobalite, quartz, trace stishovite and coesi...