Major epochs of intrusive magmatism of Kuznetsk Alatau, Altai, and Kalba (from U-Pb isotopedates)
Vladimirov A.G., Kozlov M. S., Shokal'skii S. P., Khalilov V. A., Rudnev S. N., Kruk N. N., Vystavnoi S. A., Borisov S. M., Berezikov Yu. K., Metsner A. N., Babin G. A., Mamlin A. N., Murzin O. M., Nazarov G. V., and Makarov V. A.
Keywords: Geochronology, U-Pb and Rb-Sr isotope dating, granitoid magmatism, Kuznetsk Alatau, Gorny Altai, Rudny Altai, Kalba
Pages: 1157-1178
Abstract
We present new U-Pb isotope dates for zircons from intrusive rocks of Kuznetsk Alatau, Gorny Altai, Rudny Altai, and Kalba and generalize the earlier published results of geochronological studies in these regions (U-Pb and Rb-Sr dates). Comparison of radiological ages with geological data permitted us to refine the scale of intrusive-magmatism events and recognize seven major epochs corresponding to a successive change of geodynamic settings: V
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