NEW DATA ON THE AGE AND COMPOSITION OF OPHIOLITES FROM THE KABAK-TAIGA MASSIF (GORNY ALTAI)

NEW DATA ON THE AGE AND COMPOSITION OF OPHIOLITES FROM THE KABAK-TAIGA MASSIF (GORNY ALTAI)

The combination of newly obtained geological, petrological and geochronological data on the rocks from the Kabak-Taiga ophiolite massif of the Gorny Altai and already published materials on similar characteristics of the ophiolites from Tuva allows us to conclude that an initial back-arc basin at th...

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Bibliographic Details
Main Authors: V. D. Zindobryi, M. M. Buslov, A. V. Kotlyarov
Format: Article
Language:English
Published: Russian Academy of Sciences, Siberian Branch, Institute of the Earth's crust 2025-04-01
Series:Геодинамика и тектонофизика
Subjects:
altai-sayan folded area
tectonics
geodynamics
ophiolites
back-arc basins
geochemistry
geochronology
Online Access:https://www.gt-crust.ru/jour/article/view/1835
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Summary:The combination of newly obtained geological, petrological and geochronological data on the rocks from the Kabak-Taiga ophiolite massif of the Gorny Altai and already published materials on similar characteristics of the ophiolites from Tuva allows us to conclude that an initial back-arc basin at the rear of the Tannuol island arc dates back to the Vendian – Middle Cambrian. Its formation lasted for about 70 million years. The fragments of the back-arc basin are confined to the Middle Paleozoic Charysh-Terekta-Ulagan-Sayan suture-shear zone, formed as a result of the subduction of the oceanic crust of the back-arc basin beneath the Vendian-Cambrian Tannuola island arc of the Paleoasian Ocean.
ISSN:2078-502X

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