Pseudotachylites of the Main Anabar Fault (Northern Yakutia): Petrological and Chronological Indicators of Melting during High Rate Tectonic Deformations

The results of the 40 Ar/ 39 Ar dating of the vein material of pseudotachylite from the deformation zone of the Main Anabar fault (Northern Yakutia) are presented. The depth of formation of pseudotachylites is reconstructed using the principles of thermochronology and the rheological parameters of d...

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Bibliographic Details
Published in:Doklady earth sciences 2022-05, Vol.503 (1), p.86-92
Main Authors: Polyansky, O. P., Nozkin, A. D., Sokol, E. V., Zinoviev, S. V., Semenov, A. N., Nekipelova, A. V.
Format: Article
Language:English
Subjects:
Argon
Chronologies
Cratons
Deformation
Earth and Environmental Science
Earth Sciences
Petrology
Radiometric dating
Rheological properties
Tectonics
Tectonics (Geology)
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Summary:The results of the 40 Ar/ 39 Ar dating of the vein material of pseudotachylite from the deformation zone of the Main Anabar fault (Northern Yakutia) are presented. The depth of formation of pseudotachylites is reconstructed using the principles of thermochronology and the rheological parameters of deformation. The 40 Ar/ 39 Ar age (1910 ± 24 Ma) is compared to the stages of formation of the main deformation belts of the Anabar Shield. A thermochronological interpretation of the results obtained is given.
ISSN:1028-334X
1531-8354
DOI:10.1134/S1028334X22030096