Early Permian Age of Nepheline Syenites of the Korgere–Daba Massif (Sangilen Highlands, Tuva)

This paper reports on geochronological U–Pb studies of baddeleyite from nepheline syenite of the Korgere-Daba alkaline massif, which is the largest massif within the Sangilen Highlands (Tyva). The established age of rocks, 295 ± 1 Ma, indicates that, in the Early Permian, undersaturation by silica m...

Full description

Saved in:
Bibliographic Details
Published in:Doklady earth sciences 2019-03, Vol.485 (1), p.235-237
Main Authors: Nikiforov, A. V., Salnikova, E. B., Yarmolyuk, V. V., Kotov, A. B., Sugorakova, A. M., Anisimova, I. V.
Format: Article
Language:English
Subjects:
Age
Corrections
Devonian
Earth and Environmental Science
Earth Sciences
Geochronology
Geology
Highlands
Magma
Massifs
Nepheline
Permian
Silica
Silicon dioxide
Syenite
Citations: Items that this one cites
Items that cite this one
Online Access:Get full text
Tags: Add Tag
No Tags, Be the first to tag this record!
Description
Summary:This paper reports on geochronological U–Pb studies of baddeleyite from nepheline syenite of the Korgere-Daba alkaline massif, which is the largest massif within the Sangilen Highlands (Tyva). The established age of rocks, 295 ± 1 Ma, indicates that, in the Early Permian, undersaturation by silica magmatism occurred in the region in addition to the alkaline-granite magmatism (Ulug-Tanzek, etc.). This age furthermore points to the need to make corrections in the conceptions of a petrophysical type for the Devonian Sangilen complex, which is traditionally distinguished in this region. Until now, the Korgere-Daba massif has been considered in this regard.
ISSN:1028-334X
1531-8354
DOI:10.1134/S1028334X19030139