AGE OF METAMORPHISM OF THE SLYUDYANKA CRYSTALLINE COMPLEX, SOUTHERN BAIKAL AREA - U-PB GEOCHRONOLOGY OF GRANITOIDS

Authors
KOTOV AB SALNIKOVA EB REZNITSKII LZ VASILEV EP KOZAKOV IK YAKOVLEVA SZ KOVACH VP BEREZHNAYA NG
Citation
Ab. Kotov et al., AGE OF METAMORPHISM OF THE SLYUDYANKA CRYSTALLINE COMPLEX, SOUTHERN BAIKAL AREA - U-PB GEOCHRONOLOGY OF GRANITOIDS, PETROLOGY, 5(4), 1997, pp. 338-349
Citations number
44
Categorie Soggetti
Geosciences, Interdisciplinary",Mineralogy
Journal title
PETROLOGY → ACNP
ISSN journal
08695911
Volume
5
Issue
4
Year of publication
1997
Pages
338 - 349
Database
ISI
SICI code
0869-5911(1997)5:4<338:AOMOTS>2.0.ZU;2-2
Abstract
U-Pb zircon ages of synmetamorphic granitoids (481 +/- 5 Ma) and postm etamorphic quartz syenites (474 +/- 5 Ma) of the Slyudyanka crystallin e complex were determined. These rocks formed during the second tecton o-metamorphic cycle and were metamorphosed to granulite facies. Accord ing to our geochronological data, the high-temperature metamorphism of the southern Baikal crystalline complexes occurred during the Early P aleozoic regional evolutionary stage.