Abstract
Mineralogical and U–Pb (ID-TIMS) geochronological studies of garnets from three types of scarn associations of the Khovu-Aksy Ag–Bi–Cu–Ni–Co deposit (Republic of Tuva) are carried out. The U–Pb garnet age estimate (404 ± 2 Ma) is close to the Early Devonian stage of basite and alkaline-basite magmatism identified within the Tuva trough of the Altai-Sayan folded area. The age of the scarn formation and the associated early stage of mineralization of the Khovu-Aksy Ag–Bi–Cu–Ni–Co deposit has been established for the first time.
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Funding
The geochronological studies were supported by the Russian Science Foundation no. 22-17-00211, the mineralogical research was carried out on the scheduled subject of Institute of Precambrian Geology and Geochronology, Russian Academy of Sciences (no. FMUW-2022-0003), while the geological investigations were conducted on the scheduled subject of Institute of Geology of Ore Deposits, Petrography, Mineralogy, and Geochemistry, Russian Academy of Sciences (no. FMMN-2021-0006).
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Stifeeva, M.V., Salnikova, E.B., Kotov, A.B. et al. The Age of the Early Formation Stage of the Khovu-Aksy Ag–Bi–Cu–Ni–Co Deposit (Republic of Tuva): U–Pb (ID-TIMS) Geochronological Studies of Garnet. Dokl. Earth Sc. (2024). https://doi.org/10.1134/S1028334X23603632
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DOI: https://doi.org/10.1134/S1028334X23603632