Material composition and tectonic position of differentiated magmatites of the Ungrinsky complex of the Aldan-Stanovoy shield
https://doi.org/10.25587/SVFU.2023.29.1.010
Abstract
The article presents a description and interpretation of the material composition of the magmatic series of the Early Precambrian which contributes to the reconstruction of geodynamic conditions for the formation of the ancient platforms foundation. The central part of the Aldan-Stanovoy shield of the Siberian Platform is characterized by a variety of magmatic complexes and a complex and long history of formation. Due to the superimposed processes of metamorphism that have changed the original appearance of rocks, the problem of dismemberment and correlation of complexes, geodynamic zoning on a material basis is far from being solved. This article describes the material characteristics of the Ungrinsky magmatic complex associated with the Paleoproterozoic suprasubduction environment. Its probable material analogues among other magmatic complexes and undiff erentiated orthopods are considered, the area of distribution is specified. The conclusion is made about the introduction of the complex after accretion events.
About the Authors
A. A. Kravchenko
Diamond and Precious Metal Geology Institute, SB RAS
Russian Federation
Russian Federation
Kravchenko Alexander Alexandrovich – Candidate of Geological and Mineralogical Sciences, Head of the Laboratory of Metallogeny.
Yakutsk
V. I. Beryozkin
Diamond and Precious Metal Geology Institute, SB RAS
Russian Federation
Russian Federation
Berezkin Vasily Ionovich – Candidate of Geological and Mineralogical Sciences, Senior researcher of the Laboratory of Metallogeny.
Yakutsk
N. V. Popov
Trofimuk Institute of Petroleum Geology and Geophysics, SB RAS
Russian Federation
Russian Federation
Popov Nikolay Nikolaevich – Candidate of Geological and Mineralogical Sciences, Senior researcher of the Laboratory of Precambrian and Cambrian Paleontology and Stratigraphy.
Novosibirsk
Ia. P. Shepeleva
M.K. Ammosov NEFU
Russian Federation
Russian Federation
Shepeleva Iana Petrovna – Candidate of Geological and Mineralogical Sciences, Associate Professor, Department of Applied Geology, Faculty of Geology and Survey.
Yakutsk
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Review
For citations:
Kravchenko A.A., Beryozkin V.I., Popov N.V., Shepeleva I.P. Material composition and tectonic position of differentiated magmatites of the Ungrinsky complex of the Aldan-Stanovoy shield. Vestnik of North-Eastern Federal University Series "Earth Sciences". 2023;(1):29-49. (In Russ.) https://doi.org/10.25587/SVFU.2023.29.1.010
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