1. Age and tectonic position of the Stanovoi metamorphic complex in the eastern part of the Central Asian Foldbelt.
- Author
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Velikoslavinskii, S., Kotov, A., Kovach, V., Tolmacheva, E., Sorokin, A., Sal'nikova, E., Larin, A., Zagornaya, N., Wang, K., and Chung, S.-L.
- Subjects
PLATE tectonics ,METAMORPHIC rocks ,OROGENIC belts ,LASER ablation inductively coupled plasma mass spectrometry ,STANOVOI Range (Russia) - Abstract
Based on the results of Sm-Nd isotopic geochemical and U-Th-Pb geochronological LA-ICP-MS studies, it has been established that the formation of metamorphic rock protoliths of the Stanovoi Complex in the western Dzhugdzhur-Stanovoi Superterrane of the Central Asian Foldbelt took place over the following time spans: 2750-2860 Ma (Ilikan Group of the Ilikan Zone), 1890-1910 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-Stanovoi 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-Zeya 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-Stanovoi Superterrane of the Central Asian Foldbelt as constituents of a common terrane. [ABSTRACT FROM AUTHOR]
- Published
- 2017
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