Comment on Volodichev et al. Archean Zircons with Omphacite Inclusions from Eclogites of the Belomorian Province, Fennoscandian Shield: The First Finding. Minerals 2021, 11, 1029

Minerals

Sergey G. Skublov¹  Aleksey V. Berezin¹  Laysan I. Salimgaraeva¹ 

[1] Institute of Precambrian Geology and Geochronology, Russian Academy of Sciences, 199034 St. Petersburg, Russia;

关键词: eclogite;    zircon;    omphacite;    geochronology;    geochemistry;    mineral inclusion;   

DOI  :  10.3390/min12020141

来源: DOAJ

【 摘 要 】

Volodichev et al. (Volodichev et al., 2021) reported on the first finding of omphacite (23%–25% Jd) inclusions in 2.68 Ga metamorphic zircons from Gridino eclogites and presented it as evidence for Archean eclogite-facies metamorphism in the Belomorian Mobile Belt. We believe that the Archean age of the garnets referred to by the above authors was estimated incorrectly. Our interpretation is that omphacite origin is related to Archean high-pressure granulite-facies metamorphism.

【 授权许可】

Unknown