Title

V. K. Kuzmin, N. V. Rodionov

First U-Pb SHRIMP data on Early Danian age of gneissic plagiogranite of Hanaly Uplift (Eastern Kamchatka)

Amphibole-­biotite gneissic plagiogranites of Vachtalka and Tumkhan massifs that intrude metamorphic Hanaly series, were dated by U-­Pb techniques (SHRIMP II). The intrusives contain mostly zircons of magmatic origin with concordant ages of 64.36 ± 0.53 or 64.28 ± 0.38 Ma. This confirms for sure that an initial granitic magmatic event at the Hanaly uplift occurred in Early Danian. Our results indicate that the gneissic plagiogranites, which have being belonged before to different suites ranging by age from Precambrian to Miocene, have to unite to the same intrusive complex of Early Danian. This complex is suggested to name the Vakhtalka Complex.
Key words: Kamchatka, granit, Danian, SHRIMP, zircon.