U/Pb Age of detrital zircons from sandstones of the upper emsian diamond takaty formation of the Western Urals

• Main Authors: E S Pyzhova, N S Popova
• Format: Article in Journal/Newspaper
• Language: English; Russian
• Published: Peoples’ Friendship University of Russia (RUDN University) 2015
• Subjects: такатинская свита; обломочные цирконы; Урал; Волго-Уралия; Engineering (General). Civil engineering (General); TA1-2040; Arkhangelsk
• Online Access: https://doaj.org/article/7200b22ea5114d64a0ac37b5d2933316

The first results of U/Pb (LA-ICP-MS) dating of detrital zircons from quartz sandstones of the Devonian Takaty Formation are presented. The obtained ages span a range from 1857.5 ± 53.8 to 3054.0 ± ± 48.0 Ma. The vast «gap» (~1.5 Ga) between sedimentary age of Takaty Formation and the age of the youngest zircon grain is fixed. A comparison of known ages of crystalline complexes from the Volga-Uralian part of East-European Platform with obtained ages of detrital zircons from Takaty Formation supports the «Volgo-Uralian» origin of the zircons. This implies the existence of a previously unknown stage of kimberlitic magmatism, much more ancient than the stage of kimberlitic magmatism formed diamonds in Arkhangelsk and Timan provinces.