Paleoproterozoic alkaline-carbonatite magmatism in the convergent tectonic setting: Evidences from 2.07 Ga Dubravinsky complex in the Eastern Sarmatia
PRECAMBRIAN RESEARCH(2023)
Abstract
•The Dubravinsky complex consists of alkaline pyroxenite, carbonatite and syenite.•The carbonatite and alkaline rocks have undergone amphibolite facies metamorphism.•The Dubravinsky carbonatite complex is most likely 2.07–2.08 Ga-old.•The alkaline pyroxenites and carbonatites source could be enriched SCLM protoliths.•The Dubravinsky complex is the first sign of the modern style deep subduction.
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Key words
Carbonatite,Paleoproterozoic,Kursk block,Geochronology,Isotope systematics
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