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Changes in chemical composition of peridotite olivine crystals as a result of xenolith–host rock interaction (Jeziorna, Lower Silesia, SW Poland) Cover

Changes in chemical composition of peridotite olivine crystals as a result of xenolith–host rock interaction (Jeziorna, Lower Silesia, SW Poland)

By: Monika Nowak  
Open Access
|Mar 2026

Abstract

Petrological observations and major elements analyses in olivine crystals in small xenoliths (>1.5 cm in diameter) from the Jeziorna locality, SW Poland, are presented. The olivines show very large variations in the composition of Mg, Fe, Ca and Ni, which suggests the influence of many possible factors, such as (1) regional variability of the samples; (2) changes in temperature during movement and storage of Cenozoic magmas; (3) weathering; and (4) the interaction of basaltic magma with xenoliths in the mantle or during magma ascent. The latter processes are the final changes recorded in the olivine composition. This study contributes to our understanding of which of the changes in chemical composition can be attributed to these final changes, whether they occur only at the xenolith–host rock contact, or whether they also change the olivine composition inside the xenolith.

DOI: https://doi.org/10.2478/mipo-2026-0002 | Journal eISSN: 1899-8526 | Journal ISSN: 1899-8291
Language: English
Page range: 18 - 35
Submitted on: Sep 22, 2025
Accepted on: Jan 9, 2026
Published on: Mar 19, 2026
In partnership with: Paradigm Publishing Services
Publication frequency: 1 issue per year

© 2026 Monika Nowak, published by Mineralogical Society of Poland
This work is licensed under the Creative Commons Attribution 4.0 License.