A Local Source of Detritus for Rocks of the Ai Formation (Basal Level of the Lower Riphean Stratotype, Bashkir Uplift, Southern Urals): Evidence from U–Pb (LA-ICP-MS) Dating of Detrital Zircons.

Authors :: Romanyuk, T. V.
Kuznetsov, N. B.
Puchkov, V. N.
Sergeeva, N. D.
Gorozhanina, E. N.
Gorozhanin, V. M.
Powerman, V. I.
Source :: Doklady Earth Sciences; 2019, Vol. 484 Issue 1, p53-57, 5p
Publication Year :: 2019
Abstract: The results of U–Pb dating of detrital zircons extracted from rocks of the Ai Formation are presented. A provenance-signal of a local source with an age of about 2.07 Ga has been documented, and the effect of the Ordovician magmatic episode on the sedimentary sequence has been revealed. [ABSTRACT FROM AUTHOR]

Subjects :: DETRITUS
ORDOVICIAN stratigraphic geology
BASHKIRIAN Stage
PRECAMBRIAN stratigraphic geology
TERRIGENOUS sediments
ZIRCON
GEOLOGICAL time scales

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