Middle Triassic age of metarhyolite of the Bondikha Formation, Argun Continental Massif, Central Asian Fold Belt

Research works carried out for the first time made it possible to determine the age of one of the key geological complexes in the Argun Continental Massif (Central Asian Fold Belt). It has been found that the metarhyolite of the Bondikha Formation is not Middle–Late Riphean, as previously thought, b...

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Bibliographic Details
Published in:Doklady earth sciences 2017-03, Vol.473 (1), p.296-299
Main Authors: Sorokin, A. A., Smirnova, Yu. N., Kudryashov, N. M., Sorokin, A. P.
Format: Article
Language:English
Subjects:
Earth and Environmental Science
Earth Sciences
Geochemistry
Magmatism
Triassic
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Summary:Research works carried out for the first time made it possible to determine the age of one of the key geological complexes in the Argun Continental Massif (Central Asian Fold Belt). It has been found that the metarhyolite of the Bondikha Formation is not Middle–Late Riphean, as previously thought, but is of Middle Triassic age (242 ± 6 Ma). Based upon the geochemical characteristics of the volcanics and regional geology of the Bondikha Formation, it can be assumed that they formed during one of the stages of subduction processes in the history of the Mongol–Okhotsk Fold Belt.
ISSN:1028-334X
1531-8354
DOI:10.1134/S1028334X17030084