Age and tectonic position of the Stanovoi metamorphic complex in the eastern part of the Central Asian Foldbelt
Journal
Geotectonics
Journal Volume
51
Journal Issue
4
Pages
341-352
Date Issued
2017
Author(s)
Velikoslavinskii S.D.
Kotov A.B.
Kovach V.P.
Tolmacheva E.V.
Sorokin A.A.
Sal¡¦nikova E.B.
Larin A.M.
Zagornaya N.Y.
Wang K.L.
Abstract
Based on the results of Sm¡VNd isotopic geochemical and U¡VTh¡VPb geochronological LA¡VICP¡VMS studies, it has been established that the formation of metamorphic rock protoliths of the Stanovoi Complex in the western Dzhugdzhur¡VStanovoi Superterrane of the Central Asian Foldbelt took place over the following time spans: 2750¡V2860 Ma (Ilikan Group of the Ilikan Zone), 1890¡V1910 Ma (Bryanta Group of the Bryanta Zone), and ~2.0 Ga (Kupuri and Zeya groups of the Kupuri and Zeya zones, respectively). It has been shown that the western part of the Dzhugdzhur¡VStanovoi Superterrane was formed ~1.9 Ga ago, as a result of collision of the Neoarchean Ilikan Terrane, the Paleoproterozoic island arc, and the Paleoproterozoic Kupuri¡VZeya Terrane. The data make it possible to consider the Kurul¡¦ta, and Zverevo blocks of the Stanovoi Structural Suture and the Ilikan Terrane of the Dzhugdzhur¡VStanovoi Superterrane of the Central Asian Foldbelt as constituents of a common terrane. ? 2017, Pleiades Publishing, Inc.
Subjects
Central Asian Foldbelt
Dzhugdzhur¡VStanovoi Superterrane
geochronology
geodynamic reconstruction
isotope geochemistry
Stanovoi Complex
stratigraphic correlation
SDGs
Type
journal article