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Chervurt formation of the Kolmozero-Voron'ya belt and Keivy domain: A geodynamic reference point for spatial and temporal heterogeneity during the formation of the ancient median massif
DOI: 10.21443/1560-9278-2026-29-2-172-179
Abstract. The paper considers the possible correlation of the rocks of the Chervurt Formation in the Kolmozero-Voron'ya zone with its constituent supracrustal complexes and the formations of the adjacent Keivy domain, as well as the role that metasedimentary rocks of the upper part of this zone's section played in the formation history of the Keivy median massif. The study has employed the authors' original method for assessing statistically significant patterns in petrogeochemical characteristics, which has yielded good results in solving such problems, as previously demonstrated by the authors in a number of publications devoted to the correlation of supracrustal complexes of the Bolshiye Keivy and Malyye Keivy structures. The presented data allow us to conclude that the Chervurt rocks of the Kolmozero-Voron'ya zone are most similar to the metasedimentary complexes of the Keivy domain, and within them, to the rocks of the Upper Chervurt Subformation. This is also indicated by other clearly manifested patterns previously noted by the authors for the Upper Chervurt Subformation of the Keivy structure. It is also shown that the rocks of the Chervurt formation of the Kolmozero-Voron'ya belt are compositionally most distant from other complexes constituting this zone, primarily the Lyavozero complex, with which some researchers have attempted to correlate them. Taking into account these data, as well as information on the age of the rocks composing the Keivy domain and the Kolmozero-Voron'ya greenstone belt, and the authors' previously obtained data on the possible formation settings of certain Keivy formations, a model for the final stage of the formation of the Keivy median massif has been proposed.
Printed reference: Kozlov N. E., Sorokhtin N. O. Chervurt formation of the Kolmozero-Voron'ya belt and Keivy domain: A geodynamic reference point for spatial and temporal heterogeneity during the formation of the ancient median massif // Vestnik of MSTU. 2026. V. 29, No 2. P. 172-179.
Electronic reference: Kozlov N. E., Sorokhtin N. O. Chervurt formation of the Kolmozero-Voron'ya belt and Keivy domain: A geodynamic reference point for spatial and temporal heterogeneity during the formation of the ancient median massif // Vestnik of MSTU. 2026. V. 29, No 2. P. 172-179. URL: https://vestnik.mauniver.ru/v29_2_n108/03_Kozlov_172-179.pdf.
