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- Title
The First Petrological Evidence for Subduction at the Western Margin of the Siberian Craton.
- Authors
Likhanov, I. I.; Krylov, A. A.; Kozlov, P. S.; Zinoviev, S. V.; Savko, K. A.
- Abstract
The discovery of relics of glaucophane schist in high-pressure tectonites of the suture zone of Yenisei Ridge has provided evidence for a Cordillera-type convergent boundary controlled by subduction of the oceanic crust beneath the continental margin on the western side of the Siberian Craton. According to the microtextural patterns of rocks and the results of geothermobarometry, two stages of metamorphism were distinguished. The formation of high-pressure tectonites indicates the early stage in the evolution of the Paleoasian Ocean and the final stage in the Neoproterozoic history of the Yenisei Ridge including completion of the accretion–subduction processes on the western margin of the Siberian Craton.
- Subjects
YENISEY River (Russia); OCEANIC crust; PRECAMBRIAN; OROGENY; AMPHIBOLITES; GARNET; SUTURE zones (Structural geology); LAMINAR flow
- Publication
Doklady Earth Sciences, 2019, Vol 484, Issue 1, p79
- ISSN
1028-334X
- Publication type
Article
- DOI
10.1134/S1028334X19010124