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Age, sources, and provenances of protoliths of metasedimentary rocks of the Dzheltulak group, Dzheltulak suture.
- Source :
- Doklady Earth Sciences; Jun2016, Vol. 468 Issue 2, p545-548, 4p
- Publication Year :
- 2016
-
Abstract
- The results of Sm-Nb isotopic-geochemical studies of metasedimentary and metavolcanic rocks of the Dzheltulak Group of the central part of the Dzheltulak suture, as well as geochronological U-Th-Pb (LA ICP MS) studies of detrital zircons from metasedimentary rocks, which are considered as Paleoproterozoic in current stratigraphic schemes, are presented. The age of the youngest zircons is 170-190 Ma, whereas the age of the last stage of regional metamorphism is 140-150 Ma. Thus, the Dzheltulak Group hosts metasedimentary rocks, the age of the protolith of which ranges from 140-150 to 170-190 Ma. The detrital zircons derived from intrusive and metamorphic rocks of the Selenga-Stanovoi and Dzhugdzhur-Stanovoi superterranes. [ABSTRACT FROM AUTHOR]
Details
- Language :
- English
- ISSN :
- 1028334X
- Volume :
- 468
- Issue :
- 2
- Database :
- Complementary Index
- Journal :
- Doklady Earth Sciences
- Publication Type :
- Academic Journal
- Accession number :
- 116790592
- Full Text :
- https://doi.org/10.1134/S1028334X16060027