Abstract
For the first time, periclase was discovered at the Kukhilal deposit located in the Southwestern Pamirs in the Goranian series, which underwent polycyclic metamorphism from granulite to high-temperature amphibolite facies. The deposit is localized in magnesian skarns of the abyssal facies. This mineral characterizes the low-pressure, high-temperature - periclase facies of metamorphism. Its presence in the Southwestern Pamirs (apart from Kukhilala, periclase was found in two more points) is an unusual fact. We explain the formation of periclase outside its facies setting not by the metamorphism of magnesian carbonate rocks, but by the result of changes in sulfate and chloride mineral associations that arose in evaporite salt-bearing sediments in the Early Archean. The presented study provides data on the geological position of periclase-bearing rocks, paragenesis of periclase, diagnostics of the mineral, chemical composition and trace elements, as well as possible conditions for its formation.
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Litvinenko, A.K., Litvinenko, D.A., Fedorov, A.F. (2023). Periclase from Kuhilal Deposit, Southwestern Pamirs as a Result of Magnesian Solfats and Chlorites Metamorphism. In: Marin, Y. (eds) XIII General Meeting of the Russian Mineralogical Society and the Fedorov Session. GMRMS 2021. Springer Proceedings in Earth and Environmental Sciences. Springer, Cham. https://doi.org/10.1007/978-3-031-23390-6_25
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