Title

K. A. KUKUSCHKIN, A. V. MOLCHANOV, A. V. RADKOV, V. V. SHATOV, A. V. TEREKHOV, N. V. SHATOVA, E. I. KHOROKHORINA, D. N. REMIZOV (VSEGEI)

Towards differentiation of the Mesozoic intrusive rocks in the Central Aldan district (South Yakutia)

According to the results of comprehensive petrographic and geochemical investigations and isotope dating, the authors proves appliances of Mesozoic alkaline intrusive rocks of the Central Aldan area (South Yakutia) to the single magmatic source and, as a result, the need to unite them into a single intrusive complex. This article contains data which demonstrates similar geochemical features of Mesozoic alkaline intrusive rocks of Central Aldan region. Isotopic dating of rocks was carried out using local U­Pb (SHRIMP) isotopic study of zircons. The results show that alkaline intrusive rocks were formed in the interval of 122–147 Ma.
,b>Keywords: Mezozoic, Aldan shield, alkaline magmatism, Central Aldan area, syenites, Bilibin.