A model of the tectonic development of Irtysh shear zone in terms of present day radioisotope data

Authors:

Y.V.Ponomareva, orcid.org/0000-0003-1322-6773, Karaganda Technical University, Karaganda, the Republic of Kazakhstan, e-mail: This email address is being protected from spambots. You need JavaScript enabled to view it.

M.V.Ponomareva, orcid.org/0000-0001-8652-9607, Karaganda Technical University, Karaganda, the Republic of Kazakhstan, e-mail: mv_ponomareva18 @ mail.ru

A.V.Sadchikov, orcid.org/0000-0002-6022-2073, Karaganda Technical University, Karaganda, the Republic of Kazakhstan, e-mail: a.sadchikov @ kstu.kz

N.V.Zhelayeva, orcid.org/0000-0003-3572-3578, Karaganda Technical University, Karaganda, the Republic of Kazakhstan, e-mail: This email address is being protected from spambots. You need JavaScript enabled to view it.

повний текст / full article

Naukovyi Visnyk Natsionalnoho Hirnychoho Universytetu. 2021, (4): 005 - 009

https://doi.org/10.33271/nvngu/2021-4/005

Abstract:

Purpose. To present the model of tectonic development of the Irtysh shear zone, based on recent uranium-lead dating for zircon.

Methodology. The authors analyzed the results of studies of foreign and domestic scientists, conducted field research, sample preparation, carried out iso-tope studies using SHRIMP-2 and LA-ICP-MS technology; determined small elements by the fusion method using ICP.

Findings. Based on more than ten uranium-lead dating for zircon using the local method and the given geological and structural data, model of the Irtysh shear zone tectonic development has been proposed

Originality. A tectonic model has been developed and the age and structural relationships of the Irtysh shear zone with the Kalba-Narym zone based on uranium-lead zircon dating have been established.

Practical value. The article considers the structural and age relationships of the Irtysh crush zone which prove its formation along the deep Irtysh fault in the course of a long multi-stage tectogenesis.

Keywords: crystalline schists, ophiolite complex, tectonic evolution, green shale, dike, collision, uranium-lead datings

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