New Data on the Age of Detrital Zircons from the Kokdjot Group and Bolshekaroi Formation, Malyi Karatau (Southern Kazakhstan)

A. K. Khudoley; D. V. Alexeiev; S. A. DuFrane; K. E. Degtyarev; E. F. Letnikova

doi:10.1134/S1028334X18030182

New Data on the Age of Detrital Zircons from the Kokdjot Group and Bolshekaroi Formation, Malyi Karatau (Southern Kazakhstan)

Authors: Khudoley A.K.¹, Alexeiev D.V.², DuFrane S.A.³, Degtyarev K.E.², Letnikova E.F.⁴
Affiliations:
1. Institute of Earth Sciences
2. Geological Institute
3. Department of Earth and Atmospheric Sciences
4. Sobolev Institute of Geology and Mineralogy, Siberian Branch
Issue: Vol 479, No 1 (2018)
Pages: 316-319
Section: Geology
URL: https://journals.rcsi.science/1028-334X/article/view/192430
DOI: https://doi.org/10.1134/S1028334X18030182
ID: 192430

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Abstract

U–Pb dating of detrital zircon from the Kokdjot Group and Bolshekaroi Formation (Malyi Karatau) yielded for all the samples age clusters at about 800–805, 855–890, 1980–2100, and 2440–2470 Ma. The Kolmogorov–Smirnov test suggests they have identical provenance sources. The Kokdjot Group and Bolshekaroi Formation ages are presumably Neoproterozoic, not older than 800 Ma, though a somewhat younger age (not older 770 Ma) cannot be ruled out.