New geochronological studies estimate the age of alkaline magmatism in Tuva-Mongolia at about 450 million years, indicating its significance in geological history.
We present new data on the geology, geochemistry the age of alkaline magmatism in the South-West Khovsgol region. U-Pb (ID-TIMS) geochronological studies on titanite from the alkaline clinopyroxenite of the Shivleggol massif (part of the Beltesingol group of massifs) reveal an age estimate of 450±1 million years. This new age enables us to identify another stage of polychronous Early Paleozoic alkaline magmatism within the Tuva-Mongolian massif.
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A. A. Petlina (2025) studied this question.
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