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- Title
Manifestation of Late Devonian Post-Accretionary Magmatism on the Eastern Slope of the Northern Urals: New Data on the Age and Geochemistry.
- Authors
Petrov, G. A.; Ronkin, Yu. L.; Maslov, A. V.
- Abstract
A study of the geochemical features and isotopic (Sm‒Nd and U‒Pb) age of dolerites of the Ivdel complex on the eastern slope of the Northern Urals within the Tagil island-arc mega zone has been carried out. It was found that the magmatic formations composing it are of Famennian age and, therefore, were formed after the closure of the subduction zone. The rocks of the Ivdel complex show a similarity to volcanics of both convergent and divergent settings and were likely formed from the products of partial melting of the depleted supra-subduction upper mantle. Famennian hypabyssal–subvolcanic and volcanogenic complexes, similar to the Ivdel one, are also known in island-arc blocks in the Subpolar and Southern Urals.
- Subjects
URAL Mountains (Russia); DEVONIAN Period; GEOCHEMISTRY; MAGMATISM; SUBDUCTION zones; ACCRETIONARY wedges (Geology); VOLCANOLOGY
- Publication
Doklady Earth Sciences, 2021, Vol 500, Issue 1, p738
- ISSN
1028-334X
- Publication type
Article
- DOI
10.1134/S1028334X21090154