학술논문
Zirconology of garnet-glaucophane schists of the Maksyutov complex (Southern Urals).
Document Type
Article
Author
Source
Subject
*GARNET
*ZIRCON
*MAGMAS
*AMPHIBOLES
*CARBONIFEROUS Period
*GEOCHEMISTRY
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Language
ISSN
1028-334X
Abstract
The studies of zircons from garnet-glaucophane schists of the Maksyutov complex (Novotashlinskii area) have shown that their substrate was constituted of magmatic gabbroids of Neoproterozoic age (670 Ma). The long-term evolution of zircons encompassed the interval from the Neoproterozoic until the Carboniferous (673.1 ± 5.4, 592.6 ± 9.4, 517.0 ± 7.4, 444.9 ± 4.7, and 323.0 ± 8.8 Ma) and proceeded within a common geochemical area including the stages of inversed development with changes in the zircon compositions, involving the processes of crushing and dissolution. Unit II of the complex contains metamagmatic rocks, which points to the participation of a wider variety of rocks of different compositions and ages in the Maksyutov complex. [ABSTRACT FROM AUTHOR]