Rift–Related Sediments of the Passive Continental Margin of the Paleo-Asian Ocean (Baikal Segment)


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Abstract

The geological position, composition, and age of detrital zircons of sedimentary deposits of the Nugan Formation of the Western Baikal region underlying the Golousta Formation of the Baikal series of Ediacaran age have been studied. The formation of both stratigraphic units due to the same sources of detrital material, located within the southern flank of the Siberian Craton, has been proved. The deposits of the Nugan Formation have been demonstrated to mark the rifting stage of the formation of the passive margin of the Paleo-Asiatic Ocean: their accumulation occurred in the Late Cryogenian during the interval 720–640 Ma.

About the authors

A. M. Mazukabzov

Institute of the Earth’s Crust, Siberian Branch

Author for correspondence.
Email: mazuk@crust.irk.ru
Russian Federation, Irkutsk, 664033

A. M. Stanevich

Institute of the Earth’s Crust, Siberian Branch

Email: mazuk@crust.irk.ru
Russian Federation, Irkutsk, 664033

D. P. Gladkochub

Institute of the Earth’s Crust, Siberian Branch

Email: mazuk@crust.irk.ru
Russian Federation, Irkutsk, 664033

T. V. Donskaya

Institute of the Earth’s Crust, Siberian Branch

Email: mazuk@crust.irk.ru
Russian Federation, Irkutsk, 664033

V. B. Khubanov

Geological Institute, Siberian Branch

Email: mazuk@crust.irk.ru
Russian Federation, Ulan-Ude, 670047

Z. L. Motova

Institute of the Earth’s Crust, Siberian Branch

Email: mazuk@crust.irk.ru
Russian Federation, Irkutsk, 664033

T. A. Kornilova

Institute of the Earth’s Crust, Siberian Branch

Email: mazuk@crust.irk.ru
Russian Federation, Irkutsk, 664033

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